sci.electronics.repair
http://groups.google.com/group/sci.electronics.repair?hl=en
sci.electronics.repair@googlegroups.com
Today's topics:
* FUCK OFF Liebermann NUT CASE - 14 messages, 6 authors
http://groups.google.com/group/sci.electronics.repair/t/c90e1a6c9dfca321?hl=en
* Open SSID for HP printers - 4 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/2f0e2aeceb0c71fd?hl=en
* Test post for Termey - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/75f33cf051c5534b?hl=en
* Request test jig suggestion for microUSB phone charging current - 7 messages,
5 authors
http://groups.google.com/group/sci.electronics.repair/t/d4fd3d1d8e105a63?hl=en
==============================================================================
TOPIC: FUCK OFF Liebermann NUT CASE
http://groups.google.com/group/sci.electronics.repair/t/c90e1a6c9dfca321?hl=en
==============================================================================
== 1 of 14 ==
Date: Thurs, Jan 2 2014 1:55 pm
From: "Phil Allison"
"Jeff Liebermann"
Leiberman - you are the stupidest, most retarded, constantly lying fuckwit
on the NG.
Get cancer and fucking DIE !
NOW !!!!!!!!!!!!
== 2 of 14 ==
Date: Thurs, Jan 2 2014 2:47 pm
From: Jeff Liebermann
On Thu, 2 Jan 2014 11:21:15 -0800, "William Sommerwerck"
<grizzledgeezer@comcast.net> wrote:
>> Why do you keep quoting notes from Llewelen? He wrote a modeling
>> program for wire antennas. We are talking about FETs.
>
>Who is Llewelen?
Author of Eznec antenna modeling software:
<http://www.eznec.com>
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
== 3 of 14 ==
Date: Thurs, Jan 2 2014 3:43 pm
From: "Maynard A. Philbrook Jr."
In article <nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com>,
jeffl@cruzio.com says...
> > You are the stupidest, most retarded, constantly lying fuckwit on the NG.
> > Get cancer and fucking DIE !
>
> You'll not get rid of me that easily. I've already had cancer and
> Obamacare promises to keep me alive forever.
>
I'll be more than happy to put a Obama chia pet on your grave stone
for you.
I see Amazon has a deal for 28 bucks..
Jamie
== 4 of 14 ==
Date: Thurs, Jan 2 2014 4:07 pm
From: "Maynard A. Philbrook Jr."
In article <B4GdnYZ19saY4VjPnZ2dnUVZ_tudnZ2d@earthlink.com>,
ricketzz@earthlink.net says...
>
> On 01/02/2014 04:05 AM, William Sommerwerck wrote:
> > "Jeff Liebermann" wrote in message
> > news:nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com...
> >
> > <http://www.eznec.com/Amateur/RMS_Power.pdf>
> > On Pg 6 it says:
> > "The RMS value of power is not the equivalent heating power and,
> > in fact, it doesn't represent any useful physical quantity."
> > and:
> > "The RMS power is different than the average power, and therefore
> > isn?t the equivalent heating power. In fact, the RMS value of the
> > power doesn?t represent anything useful."
>
> > I remember a Popular Electronics quiz with questions about how a
> > voltmeter (at that time, a moving-coil device) would read, depending on
> > the waveform supplied. A key point was that the deflection was
> > proportional to the average current flowing through the coil, but the
> > meter was usually calibrated for the RMS value of a sinewave.
>
> Why do you keep quoting notes from Llewelen? He wrote a modeling program
> for wire antennas. We are talking about FETs.
>
> I think AVG = RMS only if waveform is pure sinewave. Otherwise you must
> use calorimeter or thermocouple to find true RMS.
AVG and RMS is not the same with sine waves..
Avg = 2/pi * peak Voltage.
And RMS is simply sqr( VP^2 / 2).
you'll notice the root his to look for the square not the
average of total voltage for example.
One can shorten that to say RMS = Vp * .707
Just think of a half round circle an draw and find the
area where you can evenly fit a square box in that half circle,
the value will be .707 times the Peak value of that circle.
Averaging ends up to be 2/pi = 0.637 * the peak voltage which
obviously gives you a different number..
And of course, no matter how you slice it, square waves at 50%
duty give you the same all around. AVG and RMS = peak.. cause there
is no slope in time for the avg and the nice square box I stated
fits perfectly in the already square wave for RMS. etc..
Jamie
== 5 of 14 ==
Date: Thurs, Jan 2 2014 4:11 pm
From: "Phil Allison"
"Maynard A. Philbrook Jr."
>
> And of course, no matter how you slice it, square waves at 50%
> duty give you the same all around. AVG and RMS = peak.. cause there
> is no slope in time ...
** Too complicated.
Q. When you ( full wave) rectify a square wave what do you get?
A. DC.
With DC, the average, peak and RMS value are the same.
Is any proof really needed ?
..... Phil
== 6 of 14 ==
Date: Thurs, Jan 2 2014 4:50 pm
From: "Maynard A. Philbrook Jr."
In article <bimdj1F69i3U1@mid.individual.net>, phil_a@tpg.com.au says...
>
> "Maynard A. Philbrook Jr."
> >
> > And of course, no matter how you slice it, square waves at 50%
> > duty give you the same all around. AVG and RMS = peak.. cause there
> > is no slope in time ...
>
> ** Too complicated.
>
> Q. When you ( full wave) rectify a square wave what do you get?
>
> A. DC.
>
> With DC, the average, peak and RMS value are the same.
>
> Is any proof really needed ?
>
>
>
>
> ..... Phil
And where was I disputing that?
Jamie
== 7 of 14 ==
Date: Thurs, Jan 2 2014 4:49 pm
From: "Phil Allison"
"Maynard A. Philbrook Jr."
> >
>> > And of course, no matter how you slice it, square waves at 50%
>> > duty give you the same all around. AVG and RMS = peak.. cause there
>> > is no slope in time ...
>>
>> ** Too complicated.
>>
>> Q. When you ( full wave) rectify a square wave what do you get?
>>
>> A. DC.
>>
>> With DC, the average, peak and RMS value are the same.
>>
>> Is any proof really needed ?
>>
>>
>
> And where was I disputing that?
** Yawnnnnnnnnn - wot a stupid straw man fallacy.
Read what I dam well wrote - fuckwit.
... Phil
== 8 of 14 ==
Date: Thurs, Jan 2 2014 4:51 pm
From: "Shaun"
"Phil Allison" wrote in message news:bik2r7FlgbdU1@mid.individual.net...
"Jeff Liebermann = retarded asshole "
>
>
>
>>>>> Ok, I yield to a higher authority. Heating power is average power:
>>>>> <http://www.eznec.com/Amateur/RMS_Power.pdf>
>>>>> However that doesn't stop nearly everyone from specifying RMS power.
>>>
>>>> ** There is no such quantity as " RMS power " if you are so stupid as
>>>> to
>>>>interpret the term literally.
>>>
>>> Which term should be interpreted non-literally?
>
>>** The term " RMS power " of course -
>
> I thought ...
** No you didn't - cos you are incapable of thought.
The quotation marks made my words quite *impossible* to misinterpret.
>>> Very good. But since there doesn't seem to be any correlation with
>>> heating power (despite using a thermocouple to do the measuring) and
>>> RMS volts or watts,
>>
>>** Quite wrong - there is a very close connection.
>
( snip more TOTALLY IRRELEVANT SHIT )
Leiberman - you are the stupidest, most retarded, constantly lying fuckwit
on the NG.
Get cancer and fucking DIE !
Hey Phil;
I used to work at an Industrial and Instrumentation repair and Calibration
shop that was licensed by Beckman to repair and calibrate there DMMs. In
the good ones, the RMS converted used a thermal method to determine RMS
Voltage and Current. That was 18 years ago and I don't remember any details
except that they used thermal measurement on a heated element. I have
compared the reading on the Beckman - Then Wavetek - now I don't know if
anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
readings matched.
I have always heard that if you really want to know the real value, you have
to buy an RMS meter.
Shaun
== 9 of 14 ==
Date: Thurs, Jan 2 2014 5:04 pm
From: "Phil Allison"
"Shaun"
>
> I used to work at an Industrial and Instrumentation repair and Calibration
> shop that was licensed by Beckman to repair and calibrate there DMMs. In
> the good ones, the RMS converted used a thermal method to determine RMS
> Voltage and Current. That was 18 years ago and I don't remember any
> details except that they used thermal measurement on a heated element. I
> have compared the reading on the Beckman - Then Wavetek - now I don't know
> if anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
> readings matched.
** No fooling...........
> I have always heard that if you really want to know the real value, you
> have to buy an RMS meter.
** That sort of nonsense *would* be said by someone who either owned an RMS
meter or was selling them.
Thermal RMS meters are virtually obsolete these days and have been replaced
by cheap analogue RMS to DC computation ICs in many hand held DMMs OR by
digital sampling computation in most DSOs.
The hand held kind have a limited measurement bandwidth compared to the
latter.
Depends what your needs are.
As Clint Eastwood might have said -
" Man's gotta know the limitations of his test equipment ".
.... Phil
== 10 of 14 ==
Date: Fri, Jan 3 2014 7:35 am
From: dave
On 01/02/2014 04:07 PM, Maynard A. Philbrook Jr. wrote:
> In article <B4GdnYZ19saY4VjPnZ2dnUVZ_tudnZ2d@earthlink.com>,
> ricketzz@earthlink.net says...
>>
>> On 01/02/2014 04:05 AM, William Sommerwerck wrote:
>>> "Jeff Liebermann" wrote in message
>>> news:nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com...
>>>
>>> <http://www.eznec.com/Amateur/RMS_Power.pdf>
>>> On Pg 6 it says:
>>> "The RMS value of power is not the equivalent heating power and,
>>> in fact, it doesn't represent any useful physical quantity."
>>> and:
>>> "The RMS power is different than the average power, and therefore
>>> isn?t the equivalent heating power. In fact, the RMS value of the
>>> power doesn?t represent anything useful."
>>
>>> I remember a Popular Electronics quiz with questions about how a
>>> voltmeter (at that time, a moving-coil device) would read, depending on
>>> the waveform supplied. A key point was that the deflection was
>>> proportional to the average current flowing through the coil, but the
>>> meter was usually calibrated for the RMS value of a sinewave.
>>
>> Why do you keep quoting notes from Llewelen? He wrote a modeling program
>> for wire antennas. We are talking about FETs.
>>
>> I think AVG = RMS only if waveform is pure sinewave. Otherwise you must
>> use calorimeter or thermocouple to find true RMS.
>
> AVG and RMS is not the same with sine waves..
>
Then they never are the same?
== 11 of 14 ==
Date: Fri, Jan 3 2014 7:41 am
From: dave
On 01/02/2014 05:04 PM, Phil Allison wrote:
>
> "Shaun"
>>
>> I used to work at an Industrial and Instrumentation repair and Calibration
>> shop that was licensed by Beckman to repair and calibrate there DMMs. In
>> the good ones, the RMS converted used a thermal method to determine RMS
>> Voltage and Current. That was 18 years ago and I don't remember any
>> details except that they used thermal measurement on a heated element. I
>> have compared the reading on the Beckman - Then Wavetek - now I don't know
>> if anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
>> readings matched.
>
> ** No fooling...........
>
>> I have always heard that if you really want to know the real value, you
>> have to buy an RMS meter.
>
> ** That sort of nonsense *would* be said by someone who either owned an RMS
> meter or was selling them.
>
> Thermal RMS meters are virtually obsolete these days and have been replaced
> by cheap analogue RMS to DC computation ICs in many hand held DMMs OR by
> digital sampling computation in most DSOs.
>
> The hand held kind have a limited measurement bandwidth compared to the
> latter.
>
> Depends what your needs are.
>
> As Clint Eastwood might have said -
>
> " Man's gotta know the limitations of his test equipment ".
>
>
>
>
> .... Phil
>
In television you calibrate the output power metering by operating into
a full power liquid cooled dummy load and measuring the temperature of
the coolant.
Using computational methods on amplifier input parameters is not the
preferred way to determine power (an efficiency factor must be assumed)
and you must ask the FCC for special permission to use the "direct method".
Dave the Re-Re
== 12 of 14 ==
Date: Fri, Jan 3 2014 9:10 am
From: "Michael A. Terrell"
William Sommerwerck wrote:
>
> "Jeff Liebermann" wrote in message
> news:quc9c95b8el5pqevbftgm87mqs5cf8akrh@4ax.com...
>
> > OK, I yield to a higher authority. Heating power is average power:
> > <http://www.eznec.com/Amateur/RMS_Power.pdf>
> > However that doesn't stop nearly everyone from specifying
> > RMS power.
>
> Unfortunately, no.
>
> > So, why do people buy true-RMS voltmeters? If they don't measure
> > anything useful, why bother?
>
> A fair question. Apparently, there was a time when AC power had a significant
> percentage of harmonics (perhaps it still does), and engineers wanted to know
> its "true" heating effect.
This is my favorite True RMS meter. Section three is a description
of how it works. The AC power line is anything but a clean sine wave.
Switching power supplies and older electronics with a single diode in
the power supply distort it, even more. The single diode causes a DC
component on your power, which confuses a simple analog meter. Three
phase is even worse, with all the harmonics on the neutral. There were a
lot of fires in office buildings and factories after the PC became
widespread. It used to be to code to use a smaller neutral on three
phase, than the tree phase lines. The harmonics caused the neutral to
overheat and in some cases, started fires.
I like this Fluke for many reasons, including the ability to read to
.01 dB variations in a signal. I used one to test the -3dB points on
video filters, up to 20 MHz. For anything higher I used a Boonton 9200
RF voltmeter.
Before someone smarts off, Video isn't just television. We produced
equipment with selectable bandwidth from DC>10 KHz to DC>40 MHz in 16
customer specified bandwidths. SDI digital video was 270 MHz, and HD is
even higher.
<http://www.ko4bb.com/Manuals/Fluke/Fluke_8920A_8921A_True_RMS_Voltmeter_Operation_and%20_Service_Manual_Oct78.pdf>
--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.
== 13 of 14 ==
Date: Fri, Jan 3 2014 7:23 pm
From: "Phil Allison"
"dave the autistic fool " <ricketzz@earthlink.net>
>
>> As Clint Eastwood might have said -
>>
>> " Man's gotta know the limitations of his test equipment ".
>
>
> In television you calibrate the output power metering by operating into a
> full power liquid cooled dummy load and measuring the temperature of the
> coolant.
** That would be for the actual transmitter on VHF or UHF - right ?
Same idea as using a glass of water and a thermometer test the power RF
power of a microwave oven.
Got SFA to do with the topic.
.... Phil
== 14 of 14 ==
Date: Fri, Jan 3 2014 7:33 pm
From: "Phil Allison"
"dave the pig ignorant autistic IDIOT "
> The question was why is audio power spec is half that of DC on/off
> capability.
** No it was not.
> It is because the device stays on all the time and because the audio
> waveform causes more heating.
** A maker's max dissipation spec for a semiconductor is not related to the
application.
It is only related to the device itself.
Normally, the figure given is for *ideal* operating conditions - like when
mounted on an infinite heatsink held at 20C.
.... Phil
==============================================================================
TOPIC: Open SSID for HP printers
http://groups.google.com/group/sci.electronics.repair/t/2f0e2aeceb0c71fd?hl=en
==============================================================================
== 1 of 4 ==
Date: Thurs, Jan 2 2014 4:46 pm
From: root
I went walking around my neighborhood scanning for open wifi
hotspots and found several HP printers. Does that mean
that someone could park outside the place and a long stream
of documents to the printer(s)?
== 2 of 4 ==
Date: Thurs, Jan 2 2014 4:51 pm
From: Michael Black
On Fri, 3 Jan 2014, root wrote:
> I went walking around my neighborhood scanning for open wifi
> hotspots and found several HP printers. Does that mean
> that someone could park outside the place and a long stream
> of documents to the printer(s)?
>
>
Look on the bright side. They can't retrieve the printing unless they
break into your house.
Michael
== 3 of 4 ==
Date: Thurs, Jan 2 2014 7:54 pm
From: Paul Drahn
On 1/2/2014 4:51 PM, Michael Black wrote:
> On Fri, 3 Jan 2014, root wrote:
>
>> I went walking around my neighborhood scanning for open wifi
>> hotspots and found several HP printers. Does that mean
>> that someone could park outside the place and a long stream
>> of documents to the printer(s)?
>>
>>
> Look on the bright side. They can't retrieve the printing unless they
> break into your house.
>
> Michael
>
True, but they can print pornographic pictures for your kids viewing
pleasure.
Paul
== 4 of 4 ==
Date: Fri, Jan 3 2014 12:15 am
From: Leif Neland
Paul Drahn forklarede den 03-01-2014:
> On 1/2/2014 4:51 PM, Michael Black wrote:
>> On Fri, 3 Jan 2014, root wrote:
>>
>>> I went walking around my neighborhood scanning for open wifi
>>> hotspots and found several HP printers. Does that mean
>>> that someone could park outside the place and a long stream
>>> of documents to the printer(s)?
>>>
>>>
>> Look on the bright side. They can't retrieve the printing unless they
>> break into your house.
>>
>> Michael
>>
> True, but they can print pornographic pictures for your kids viewing
> pleasure.
>
Or, like a glazier hires a punk kid to break windows, an office supply
dealer can hire somebody to use all the toner and paper :-)
Leif
--
Husk k�relys bagp�, hvis din bilfabrikant har taget den idiotiske
beslutning at undlade det.
==============================================================================
TOPIC: Test post for Termey
http://groups.google.com/group/sci.electronics.repair/t/75f33cf051c5534b?hl=en
==============================================================================
== 1 of 1 ==
Date: Fri, Jan 3 2014 10:25 am
From: jurb6006@gmail.com
On Wednesday, January 1, 2014 4:52:09 PM UTC-5, jurb...@gmail.com wrote:
> I am testing this from Firefox now.
==============================================================================
TOPIC: Request test jig suggestion for microUSB phone charging current
http://groups.google.com/group/sci.electronics.repair/t/d4fd3d1d8e105a63?hl=en
==============================================================================
== 1 of 7 ==
Date: Fri, Jan 3 2014 1:55 pm
From: Danny D'Amico
How would you make a test jig out of a spare USB cable?
For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
male-to-male cable.
http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
If I cut the cable in half, and isolate the wires, how would you
recommend I set it up so that it could become a test jig
(to see how much charging current a device actually draws)?
Have you done this before and have advice for how to make that jig?
Specifically, how would you fasten the bare wires, which I presume
are very very thin, and therefore fragile?
Also, we'd need a way to insert the ammeter inline to measure
current.
Any test jig ideas I can benefit from?
NOTE: This is an offshoot of the USB charger thread, where we
determined that a 3.1 Amp dual-USB charger that is 10 Watts
is very different than the same spec at 15 Watts.
== 2 of 7 ==
Date: Fri, Jan 3 2014 2:09 pm
From: "Colin Horsley"
"Danny D'Amico" <danny@is.invalid> wrote in message
news:pan.2014.01.03.21.55.23@is.invalid...
: How would you make a test jig out of a spare USB cable?
:
: For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
: male-to-male cable.
: http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
: http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
:
: If I cut the cable in half, and isolate the wires, how would you
: recommend I set it up so that it could become a test jig
: (to see how much charging current a device actually draws)?
:
: Have you done this before and have advice for how to make that jig?
:
: Specifically, how would you fasten the bare wires, which I presume
: are very very thin, and therefore fragile?
:
: Also, we'd need a way to insert the ammeter inline to measure
: current.
:
: Any test jig ideas I can benefit from?
:
: NOTE: This is an offshoot of the USB charger thread, where we
: determined that a 3.1 Amp dual-USB charger that is 10 Watts
: is very different than the same spec at 15 Watts.
Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
Detector "
Colin
== 3 of 7 ==
Date: Fri, Jan 3 2014 3:09 pm
From: sms
On 1/3/2014 2:09 PM, Colin Horsley wrote:
> "Danny D'Amico" <danny@is.invalid> wrote in message
> news:pan.2014.01.03.21.55.23@is.invalid...
> : How would you make a test jig out of a spare USB cable?
> :
> : For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
> : male-to-male cable.
> : http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
> : http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
> :
> : If I cut the cable in half, and isolate the wires, how would you
> : recommend I set it up so that it could become a test jig
> : (to see how much charging current a device actually draws)?
> :
> : Have you done this before and have advice for how to make that jig?
> :
> : Specifically, how would you fasten the bare wires, which I presume
> : are very very thin, and therefore fragile?
> :
> : Also, we'd need a way to insert the ammeter inline to measure
> : current.
> :
> : Any test jig ideas I can benefit from?
> :
> : NOTE: This is an offshoot of the USB charger thread, where we
> : determined that a 3.1 Amp dual-USB charger that is 10 Watts
> : is very different than the same spec at 15 Watts.
>
> Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
> Detector "
or
<http://dx.com/p/usb-av-usb-power-current-voltage-tester-translucent-blue-silver-235090>
== 4 of 7 ==
Date: Fri, Jan 3 2014 4:24 pm
From: Danny D'Amico
On Sat, 04 Jan 2014 09:09:54 +1100, Colin Horsley wrote:
> Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
> Detector "
Hi Colin,
That works, but I was just going to slice a cable in half, and then attach
the inner wires to a series of screws.
What I'm thinking is to screw two row of (five?) brass screws into a
piece of wood, and then attaching the cable wires to each row.
Then I can either jump the distance with a copper wire, or with the
meter leads.
But before I build the test jig, someone might suggest a better platform
out of parts commonly found in the garage or shop.
== 5 of 7 ==
Date: Fri, Jan 3 2014 5:00 pm
From: mike
On 1/3/2014 3:09 PM, sms wrote:
> On 1/3/2014 2:09 PM, Colin Horsley wrote:
>> "Danny D'Amico" <danny@is.invalid> wrote in message
>> news:pan.2014.01.03.21.55.23@is.invalid...
>> : How would you make a test jig out of a spare USB cable?
>> :
>> : For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
>> : male-to-male cable.
>> : http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
>> : http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
>> :
>> : If I cut the cable in half, and isolate the wires, how would you
>> : recommend I set it up so that it could become a test jig
>> : (to see how much charging current a device actually draws)?
>> :
>> : Have you done this before and have advice for how to make that jig?
>> :
>> : Specifically, how would you fasten the bare wires, which I presume
>> : are very very thin, and therefore fragile?
>> :
>> : Also, we'd need a way to insert the ammeter inline to measure
>> : current.
>> :
>> : Any test jig ideas I can benefit from?
>> :
>> : NOTE: This is an offshoot of the USB charger thread, where we
>> : determined that a 3.1 Amp dual-USB charger that is 10 Watts
>> : is very different than the same spec at 15 Watts.
>>
>> Look on eBay "NEW Universal portable USB power mobile mini Current
>> voltage tester
>> Detector "
>
> or
> <http://dx.com/p/usb-av-usb-power-current-voltage-tester-translucent-blue-silver-235090>
>
>
>
Cool...I was ready to order one until I saw that the data doesn't pass thru.
WTF? The connectors are almost touching, why no data?
Kinda hard to measure the drain of a disk drive in action when it won't
come out of sleep.
Why would you not connect the data unless there were problems?
Anybody bridged the data? Results?
== 6 of 7 ==
Date: Fri, Jan 3 2014 5:05 pm
From: mike
On 1/3/2014 4:24 PM, Danny D'Amico wrote:
> On Sat, 04 Jan 2014 09:09:54 +1100, Colin Horsley wrote:
>
>> Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
>> Detector "
>
> Hi Colin,
> That works, but I was just going to slice a cable in half, and then attach
> the inner wires to a series of screws.
>
> What I'm thinking is to screw two row of (five?) brass screws into a
> piece of wood, and then attaching the cable wires to each row.
>
> Then I can either jump the distance with a copper wire, or with the
> meter leads.
>
> But before I build the test jig, someone might suggest a better platform
> out of parts commonly found in the garage or shop.
>
That works if you never want any data thru it.
Better would be to cut the power wire and run that thru a meter.
Get out your ohms law calculator and verify that your meter resistance
won't defeat you.
Leave all the high speed data wires and ground alone.
== 7 of 7 ==
Date: Fri, Jan 3 2014 9:46 pm
From: "Colin Horsley"
"Danny D'Amico" <dannyd@is.invalid> wrote in message
news:pan.2014.01.04.00.24.57@is.invalid...
: On Sat, 04 Jan 2014 09:09:54 +1100, Colin Horsley wrote:
:
: > Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
: > Detector "
:
: Hi Colin,
: That works, but I was just going to slice a cable in half, and then attach
: the inner wires to a series of screws.
:
: What I'm thinking is to screw two row of (five?) brass screws into a
: piece of wood, and then attaching the cable wires to each row.
:
: Then I can either jump the distance with a copper wire, or with the
: meter leads.
:
: But before I build the test jig, someone might suggest a better platform
: out of parts commonly found in the garage or shop.
:
Sorry, I didn't read the description fully! I thought it was too good to be true.
I have actually built this kit, and it does pass through data.
Works very well.
http://www.jaycar.com.au/productView.asp?ID=KC5516
Colin
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Google Groups: http://groups.google.com/?hl=en
sci.electronics.repair - 26 new messages in 5 topics - digest
sci.electronics.repair
http://groups.google.com/group/sci.electronics.repair?hl=en
sci.electronics.repair@googlegroups.com
Today's topics:
* FUCk OFF TROLL - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/9502cb5893036b52?hl=en
* FUCK OFF Liebermann NUT CASE - 15 messages, 6 authors
http://groups.google.com/group/sci.electronics.repair/t/c90e1a6c9dfca321?hl=en
* Open SSID for HP printers - 4 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/2f0e2aeceb0c71fd?hl=en
* Test post for Termey - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/75f33cf051c5534b?hl=en
* Request test jig suggestion for microUSB phone charging current - 5 messages,
5 authors
http://groups.google.com/group/sci.electronics.repair/t/d4fd3d1d8e105a63?hl=en
==============================================================================
TOPIC: FUCk OFF TROLL
http://groups.google.com/group/sci.electronics.repair/t/9502cb5893036b52?hl=en
==============================================================================
== 1 of 1 ==
Date: Thurs, Jan 2 2014 1:40 pm
From: "Phil Allison"
"dave" <ricketzz@earthlink.net>
>> ** ROTFL !!
>>
>> You have been totally FUCKED for the whole of you miserable life -
>> asshole.
>>
>> Cos you were a genetic mental retard from birth.
>
> I was indeed born autistic.
** Finally you admit it.
That single, totally condemning fact wipes you out.
... Phil
==============================================================================
TOPIC: FUCK OFF Liebermann NUT CASE
http://groups.google.com/group/sci.electronics.repair/t/c90e1a6c9dfca321?hl=en
==============================================================================
== 1 of 15 ==
Date: Thurs, Jan 2 2014 1:41 pm
From: "Phil Allison"
"Bob Fuckwit ".
** Get cancer and fucking DIE !
Fuckwit plonker!
== 2 of 15 ==
Date: Thurs, Jan 2 2014 1:43 pm
From: "Phil Allison"
"dave" <ricketzz@earthlink.net>
** FOAD - you autistic IDIOT !!!!!!
== 3 of 15 ==
Date: Thurs, Jan 2 2014 1:54 pm
From: "Phil Allison"
"William Sommerwanker is a bullshitting ass."
>
>> So, why do people buy true-RMS voltmeters? If they don't measure
>> anything useful, why bother?
>
> A fair question.
** Wrong - it's a fuckwit question.
> Apparently, there was a time when AC power had a significant percentage of
> harmonics (perhaps it still does), and engineers wanted to know its "true"
> heating effect.
** Nonsense.
Any "moving iron" amp meter inherently reads "true RMS" values and they are
as old as the hills.
True RMS meters are mostly used to measure irregular signals like noise and
distorted current waveforms that exist with AC to DC supply conversion.
There is no way to compute these values ( from the peak or average rectified
value) as there is with sine or other regular waveforms.
.... Phil
== 4 of 15 ==
Date: Thurs, Jan 2 2014 1:55 pm
From: "Phil Allison"
"Jeff Liebermann"
Leiberman - you are the stupidest, most retarded, constantly lying fuckwit
on the NG.
Get cancer and fucking DIE !
NOW !!!!!!!!!!!!
== 5 of 15 ==
Date: Thurs, Jan 2 2014 2:47 pm
From: Jeff Liebermann
On Thu, 2 Jan 2014 11:21:15 -0800, "William Sommerwerck"
<grizzledgeezer@comcast.net> wrote:
>> Why do you keep quoting notes from Llewelen? He wrote a modeling
>> program for wire antennas. We are talking about FETs.
>
>Who is Llewelen?
Author of Eznec antenna modeling software:
<http://www.eznec.com>
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
== 6 of 15 ==
Date: Thurs, Jan 2 2014 3:43 pm
From: "Maynard A. Philbrook Jr."
In article <nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com>,
jeffl@cruzio.com says...
> > You are the stupidest, most retarded, constantly lying fuckwit on the NG.
> > Get cancer and fucking DIE !
>
> You'll not get rid of me that easily. I've already had cancer and
> Obamacare promises to keep me alive forever.
>
I'll be more than happy to put a Obama chia pet on your grave stone
for you.
I see Amazon has a deal for 28 bucks..
Jamie
== 7 of 15 ==
Date: Thurs, Jan 2 2014 4:07 pm
From: "Maynard A. Philbrook Jr."
In article <B4GdnYZ19saY4VjPnZ2dnUVZ_tudnZ2d@earthlink.com>,
ricketzz@earthlink.net says...
>
> On 01/02/2014 04:05 AM, William Sommerwerck wrote:
> > "Jeff Liebermann" wrote in message
> > news:nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com...
> >
> > <http://www.eznec.com/Amateur/RMS_Power.pdf>
> > On Pg 6 it says:
> > "The RMS value of power is not the equivalent heating power and,
> > in fact, it doesn't represent any useful physical quantity."
> > and:
> > "The RMS power is different than the average power, and therefore
> > isn?t the equivalent heating power. In fact, the RMS value of the
> > power doesn?t represent anything useful."
>
> > I remember a Popular Electronics quiz with questions about how a
> > voltmeter (at that time, a moving-coil device) would read, depending on
> > the waveform supplied. A key point was that the deflection was
> > proportional to the average current flowing through the coil, but the
> > meter was usually calibrated for the RMS value of a sinewave.
>
> Why do you keep quoting notes from Llewelen? He wrote a modeling program
> for wire antennas. We are talking about FETs.
>
> I think AVG = RMS only if waveform is pure sinewave. Otherwise you must
> use calorimeter or thermocouple to find true RMS.
AVG and RMS is not the same with sine waves..
Avg = 2/pi * peak Voltage.
And RMS is simply sqr( VP^2 / 2).
you'll notice the root his to look for the square not the
average of total voltage for example.
One can shorten that to say RMS = Vp * .707
Just think of a half round circle an draw and find the
area where you can evenly fit a square box in that half circle,
the value will be .707 times the Peak value of that circle.
Averaging ends up to be 2/pi = 0.637 * the peak voltage which
obviously gives you a different number..
And of course, no matter how you slice it, square waves at 50%
duty give you the same all around. AVG and RMS = peak.. cause there
is no slope in time for the avg and the nice square box I stated
fits perfectly in the already square wave for RMS. etc..
Jamie
== 8 of 15 ==
Date: Thurs, Jan 2 2014 4:11 pm
From: "Phil Allison"
"Maynard A. Philbrook Jr."
>
> And of course, no matter how you slice it, square waves at 50%
> duty give you the same all around. AVG and RMS = peak.. cause there
> is no slope in time ...
** Too complicated.
Q. When you ( full wave) rectify a square wave what do you get?
A. DC.
With DC, the average, peak and RMS value are the same.
Is any proof really needed ?
..... Phil
== 9 of 15 ==
Date: Thurs, Jan 2 2014 4:50 pm
From: "Maynard A. Philbrook Jr."
In article <bimdj1F69i3U1@mid.individual.net>, phil_a@tpg.com.au says...
>
> "Maynard A. Philbrook Jr."
> >
> > And of course, no matter how you slice it, square waves at 50%
> > duty give you the same all around. AVG and RMS = peak.. cause there
> > is no slope in time ...
>
> ** Too complicated.
>
> Q. When you ( full wave) rectify a square wave what do you get?
>
> A. DC.
>
> With DC, the average, peak and RMS value are the same.
>
> Is any proof really needed ?
>
>
>
>
> ..... Phil
And where was I disputing that?
Jamie
== 10 of 15 ==
Date: Thurs, Jan 2 2014 4:49 pm
From: "Phil Allison"
"Maynard A. Philbrook Jr."
> >
>> > And of course, no matter how you slice it, square waves at 50%
>> > duty give you the same all around. AVG and RMS = peak.. cause there
>> > is no slope in time ...
>>
>> ** Too complicated.
>>
>> Q. When you ( full wave) rectify a square wave what do you get?
>>
>> A. DC.
>>
>> With DC, the average, peak and RMS value are the same.
>>
>> Is any proof really needed ?
>>
>>
>
> And where was I disputing that?
** Yawnnnnnnnnn - wot a stupid straw man fallacy.
Read what I dam well wrote - fuckwit.
... Phil
== 11 of 15 ==
Date: Thurs, Jan 2 2014 4:51 pm
From: "Shaun"
"Phil Allison" wrote in message news:bik2r7FlgbdU1@mid.individual.net...
"Jeff Liebermann = retarded asshole "
>
>
>
>>>>> Ok, I yield to a higher authority. Heating power is average power:
>>>>> <http://www.eznec.com/Amateur/RMS_Power.pdf>
>>>>> However that doesn't stop nearly everyone from specifying RMS power.
>>>
>>>> ** There is no such quantity as " RMS power " if you are so stupid as
>>>> to
>>>>interpret the term literally.
>>>
>>> Which term should be interpreted non-literally?
>
>>** The term " RMS power " of course -
>
> I thought ...
** No you didn't - cos you are incapable of thought.
The quotation marks made my words quite *impossible* to misinterpret.
>>> Very good. But since there doesn't seem to be any correlation with
>>> heating power (despite using a thermocouple to do the measuring) and
>>> RMS volts or watts,
>>
>>** Quite wrong - there is a very close connection.
>
( snip more TOTALLY IRRELEVANT SHIT )
Leiberman - you are the stupidest, most retarded, constantly lying fuckwit
on the NG.
Get cancer and fucking DIE !
Hey Phil;
I used to work at an Industrial and Instrumentation repair and Calibration
shop that was licensed by Beckman to repair and calibrate there DMMs. In
the good ones, the RMS converted used a thermal method to determine RMS
Voltage and Current. That was 18 years ago and I don't remember any details
except that they used thermal measurement on a heated element. I have
compared the reading on the Beckman - Then Wavetek - now I don't know if
anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
readings matched.
I have always heard that if you really want to know the real value, you have
to buy an RMS meter.
Shaun
== 12 of 15 ==
Date: Thurs, Jan 2 2014 5:04 pm
From: "Phil Allison"
"Shaun"
>
> I used to work at an Industrial and Instrumentation repair and Calibration
> shop that was licensed by Beckman to repair and calibrate there DMMs. In
> the good ones, the RMS converted used a thermal method to determine RMS
> Voltage and Current. That was 18 years ago and I don't remember any
> details except that they used thermal measurement on a heated element. I
> have compared the reading on the Beckman - Then Wavetek - now I don't know
> if anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
> readings matched.
** No fooling...........
> I have always heard that if you really want to know the real value, you
> have to buy an RMS meter.
** That sort of nonsense *would* be said by someone who either owned an RMS
meter or was selling them.
Thermal RMS meters are virtually obsolete these days and have been replaced
by cheap analogue RMS to DC computation ICs in many hand held DMMs OR by
digital sampling computation in most DSOs.
The hand held kind have a limited measurement bandwidth compared to the
latter.
Depends what your needs are.
As Clint Eastwood might have said -
" Man's gotta know the limitations of his test equipment ".
.... Phil
== 13 of 15 ==
Date: Fri, Jan 3 2014 7:35 am
From: dave
On 01/02/2014 04:07 PM, Maynard A. Philbrook Jr. wrote:
> In article <B4GdnYZ19saY4VjPnZ2dnUVZ_tudnZ2d@earthlink.com>,
> ricketzz@earthlink.net says...
>>
>> On 01/02/2014 04:05 AM, William Sommerwerck wrote:
>>> "Jeff Liebermann" wrote in message
>>> news:nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com...
>>>
>>> <http://www.eznec.com/Amateur/RMS_Power.pdf>
>>> On Pg 6 it says:
>>> "The RMS value of power is not the equivalent heating power and,
>>> in fact, it doesn't represent any useful physical quantity."
>>> and:
>>> "The RMS power is different than the average power, and therefore
>>> isn?t the equivalent heating power. In fact, the RMS value of the
>>> power doesn?t represent anything useful."
>>
>>> I remember a Popular Electronics quiz with questions about how a
>>> voltmeter (at that time, a moving-coil device) would read, depending on
>>> the waveform supplied. A key point was that the deflection was
>>> proportional to the average current flowing through the coil, but the
>>> meter was usually calibrated for the RMS value of a sinewave.
>>
>> Why do you keep quoting notes from Llewelen? He wrote a modeling program
>> for wire antennas. We are talking about FETs.
>>
>> I think AVG = RMS only if waveform is pure sinewave. Otherwise you must
>> use calorimeter or thermocouple to find true RMS.
>
> AVG and RMS is not the same with sine waves..
>
Then they never are the same?
== 14 of 15 ==
Date: Fri, Jan 3 2014 7:41 am
From: dave
On 01/02/2014 05:04 PM, Phil Allison wrote:
>
> "Shaun"
>>
>> I used to work at an Industrial and Instrumentation repair and Calibration
>> shop that was licensed by Beckman to repair and calibrate there DMMs. In
>> the good ones, the RMS converted used a thermal method to determine RMS
>> Voltage and Current. That was 18 years ago and I don't remember any
>> details except that they used thermal measurement on a heated element. I
>> have compared the reading on the Beckman - Then Wavetek - now I don't know
>> if anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
>> readings matched.
>
> ** No fooling...........
>
>> I have always heard that if you really want to know the real value, you
>> have to buy an RMS meter.
>
> ** That sort of nonsense *would* be said by someone who either owned an RMS
> meter or was selling them.
>
> Thermal RMS meters are virtually obsolete these days and have been replaced
> by cheap analogue RMS to DC computation ICs in many hand held DMMs OR by
> digital sampling computation in most DSOs.
>
> The hand held kind have a limited measurement bandwidth compared to the
> latter.
>
> Depends what your needs are.
>
> As Clint Eastwood might have said -
>
> " Man's gotta know the limitations of his test equipment ".
>
>
>
>
> .... Phil
>
In television you calibrate the output power metering by operating into
a full power liquid cooled dummy load and measuring the temperature of
the coolant.
Using computational methods on amplifier input parameters is not the
preferred way to determine power (an efficiency factor must be assumed)
and you must ask the FCC for special permission to use the "direct method".
Dave the Re-Re
== 15 of 15 ==
Date: Fri, Jan 3 2014 9:10 am
From: "Michael A. Terrell"
William Sommerwerck wrote:
>
> "Jeff Liebermann" wrote in message
> news:quc9c95b8el5pqevbftgm87mqs5cf8akrh@4ax.com...
>
> > OK, I yield to a higher authority. Heating power is average power:
> > <http://www.eznec.com/Amateur/RMS_Power.pdf>
> > However that doesn't stop nearly everyone from specifying
> > RMS power.
>
> Unfortunately, no.
>
> > So, why do people buy true-RMS voltmeters? If they don't measure
> > anything useful, why bother?
>
> A fair question. Apparently, there was a time when AC power had a significant
> percentage of harmonics (perhaps it still does), and engineers wanted to know
> its "true" heating effect.
This is my favorite True RMS meter. Section three is a description
of how it works. The AC power line is anything but a clean sine wave.
Switching power supplies and older electronics with a single diode in
the power supply distort it, even more. The single diode causes a DC
component on your power, which confuses a simple analog meter. Three
phase is even worse, with all the harmonics on the neutral. There were a
lot of fires in office buildings and factories after the PC became
widespread. It used to be to code to use a smaller neutral on three
phase, than the tree phase lines. The harmonics caused the neutral to
overheat and in some cases, started fires.
I like this Fluke for many reasons, including the ability to read to
.01 dB variations in a signal. I used one to test the -3dB points on
video filters, up to 20 MHz. For anything higher I used a Boonton 9200
RF voltmeter.
Before someone smarts off, Video isn't just television. We produced
equipment with selectable bandwidth from DC>10 KHz to DC>40 MHz in 16
customer specified bandwidths. SDI digital video was 270 MHz, and HD is
even higher.
<http://www.ko4bb.com/Manuals/Fluke/Fluke_8920A_8921A_True_RMS_Voltmeter_Operation_and%20_Service_Manual_Oct78.pdf>
--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.
==============================================================================
TOPIC: Open SSID for HP printers
http://groups.google.com/group/sci.electronics.repair/t/2f0e2aeceb0c71fd?hl=en
==============================================================================
== 1 of 4 ==
Date: Thurs, Jan 2 2014 4:46 pm
From: root
I went walking around my neighborhood scanning for open wifi
hotspots and found several HP printers. Does that mean
that someone could park outside the place and a long stream
of documents to the printer(s)?
== 2 of 4 ==
Date: Thurs, Jan 2 2014 4:51 pm
From: Michael Black
On Fri, 3 Jan 2014, root wrote:
> I went walking around my neighborhood scanning for open wifi
> hotspots and found several HP printers. Does that mean
> that someone could park outside the place and a long stream
> of documents to the printer(s)?
>
>
Look on the bright side. They can't retrieve the printing unless they
break into your house.
Michael
== 3 of 4 ==
Date: Thurs, Jan 2 2014 7:54 pm
From: Paul Drahn
On 1/2/2014 4:51 PM, Michael Black wrote:
> On Fri, 3 Jan 2014, root wrote:
>
>> I went walking around my neighborhood scanning for open wifi
>> hotspots and found several HP printers. Does that mean
>> that someone could park outside the place and a long stream
>> of documents to the printer(s)?
>>
>>
> Look on the bright side. They can't retrieve the printing unless they
> break into your house.
>
> Michael
>
True, but they can print pornographic pictures for your kids viewing
pleasure.
Paul
== 4 of 4 ==
Date: Fri, Jan 3 2014 12:15 am
From: Leif Neland
Paul Drahn forklarede den 03-01-2014:
> On 1/2/2014 4:51 PM, Michael Black wrote:
>> On Fri, 3 Jan 2014, root wrote:
>>
>>> I went walking around my neighborhood scanning for open wifi
>>> hotspots and found several HP printers. Does that mean
>>> that someone could park outside the place and a long stream
>>> of documents to the printer(s)?
>>>
>>>
>> Look on the bright side. They can't retrieve the printing unless they
>> break into your house.
>>
>> Michael
>>
> True, but they can print pornographic pictures for your kids viewing
> pleasure.
>
Or, like a glazier hires a punk kid to break windows, an office supply
dealer can hire somebody to use all the toner and paper :-)
Leif
--
Husk k�relys bagp�, hvis din bilfabrikant har taget den idiotiske
beslutning at undlade det.
==============================================================================
TOPIC: Test post for Termey
http://groups.google.com/group/sci.electronics.repair/t/75f33cf051c5534b?hl=en
==============================================================================
== 1 of 1 ==
Date: Fri, Jan 3 2014 10:25 am
From: jurb6006@gmail.com
On Wednesday, January 1, 2014 4:52:09 PM UTC-5, jurb...@gmail.com wrote:
> I am testing this from Firefox now.
==============================================================================
TOPIC: Request test jig suggestion for microUSB phone charging current
http://groups.google.com/group/sci.electronics.repair/t/d4fd3d1d8e105a63?hl=en
==============================================================================
== 1 of 5 ==
Date: Fri, Jan 3 2014 1:55 pm
From: Danny D'Amico
How would you make a test jig out of a spare USB cable?
For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
male-to-male cable.
http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
If I cut the cable in half, and isolate the wires, how would you
recommend I set it up so that it could become a test jig
(to see how much charging current a device actually draws)?
Have you done this before and have advice for how to make that jig?
Specifically, how would you fasten the bare wires, which I presume
are very very thin, and therefore fragile?
Also, we'd need a way to insert the ammeter inline to measure
current.
Any test jig ideas I can benefit from?
NOTE: This is an offshoot of the USB charger thread, where we
determined that a 3.1 Amp dual-USB charger that is 10 Watts
is very different than the same spec at 15 Watts.
== 2 of 5 ==
Date: Fri, Jan 3 2014 2:09 pm
From: "Colin Horsley"
"Danny D'Amico" <danny@is.invalid> wrote in message
news:pan.2014.01.03.21.55.23@is.invalid...
: How would you make a test jig out of a spare USB cable?
:
: For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
: male-to-male cable.
: http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
: http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
:
: If I cut the cable in half, and isolate the wires, how would you
: recommend I set it up so that it could become a test jig
: (to see how much charging current a device actually draws)?
:
: Have you done this before and have advice for how to make that jig?
:
: Specifically, how would you fasten the bare wires, which I presume
: are very very thin, and therefore fragile?
:
: Also, we'd need a way to insert the ammeter inline to measure
: current.
:
: Any test jig ideas I can benefit from?
:
: NOTE: This is an offshoot of the USB charger thread, where we
: determined that a 3.1 Amp dual-USB charger that is 10 Watts
: is very different than the same spec at 15 Watts.
Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
Detector "
Colin
== 3 of 5 ==
Date: Fri, Jan 3 2014 3:09 pm
From: sms
On 1/3/2014 2:09 PM, Colin Horsley wrote:
> "Danny D'Amico" <danny@is.invalid> wrote in message
> news:pan.2014.01.03.21.55.23@is.invalid...
> : How would you make a test jig out of a spare USB cable?
> :
> : For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
> : male-to-male cable.
> : http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
> : http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
> :
> : If I cut the cable in half, and isolate the wires, how would you
> : recommend I set it up so that it could become a test jig
> : (to see how much charging current a device actually draws)?
> :
> : Have you done this before and have advice for how to make that jig?
> :
> : Specifically, how would you fasten the bare wires, which I presume
> : are very very thin, and therefore fragile?
> :
> : Also, we'd need a way to insert the ammeter inline to measure
> : current.
> :
> : Any test jig ideas I can benefit from?
> :
> : NOTE: This is an offshoot of the USB charger thread, where we
> : determined that a 3.1 Amp dual-USB charger that is 10 Watts
> : is very different than the same spec at 15 Watts.
>
> Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
> Detector "
or
<http://dx.com/p/usb-av-usb-power-current-voltage-tester-translucent-blue-silver-235090>
== 4 of 5 ==
Date: Fri, Jan 3 2014 4:24 pm
From: Danny D'Amico
On Sat, 04 Jan 2014 09:09:54 +1100, Colin Horsley wrote:
> Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
> Detector "
Hi Colin,
That works, but I was just going to slice a cable in half, and then attach
the inner wires to a series of screws.
What I'm thinking is to screw two row of (five?) brass screws into a
piece of wood, and then attaching the cable wires to each row.
Then I can either jump the distance with a copper wire, or with the
meter leads.
But before I build the test jig, someone might suggest a better platform
out of parts commonly found in the garage or shop.
== 5 of 5 ==
Date: Fri, Jan 3 2014 5:00 pm
From: mike
On 1/3/2014 3:09 PM, sms wrote:
> On 1/3/2014 2:09 PM, Colin Horsley wrote:
>> "Danny D'Amico" <danny@is.invalid> wrote in message
>> news:pan.2014.01.03.21.55.23@is.invalid...
>> : How would you make a test jig out of a spare USB cable?
>> :
>> : For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
>> : male-to-male cable.
>> : http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
>> : http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
>> :
>> : If I cut the cable in half, and isolate the wires, how would you
>> : recommend I set it up so that it could become a test jig
>> : (to see how much charging current a device actually draws)?
>> :
>> : Have you done this before and have advice for how to make that jig?
>> :
>> : Specifically, how would you fasten the bare wires, which I presume
>> : are very very thin, and therefore fragile?
>> :
>> : Also, we'd need a way to insert the ammeter inline to measure
>> : current.
>> :
>> : Any test jig ideas I can benefit from?
>> :
>> : NOTE: This is an offshoot of the USB charger thread, where we
>> : determined that a 3.1 Amp dual-USB charger that is 10 Watts
>> : is very different than the same spec at 15 Watts.
>>
>> Look on eBay "NEW Universal portable USB power mobile mini Current
>> voltage tester
>> Detector "
>
> or
> <http://dx.com/p/usb-av-usb-power-current-voltage-tester-translucent-blue-silver-235090>
>
>
>
Cool...I was ready to order one until I saw that the data doesn't pass thru.
WTF? The connectors are almost touching, why no data?
Kinda hard to measure the drain of a disk drive in action when it won't
come out of sleep.
Why would you not connect the data unless there were problems?
Anybody bridged the data? Results?
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Today's topics:
* FUCk OFF TROLL - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/9502cb5893036b52?hl=en
* FUCK OFF Liebermann NUT CASE - 15 messages, 6 authors
http://groups.google.com/group/sci.electronics.repair/t/c90e1a6c9dfca321?hl=en
* Open SSID for HP printers - 4 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/2f0e2aeceb0c71fd?hl=en
* Test post for Termey - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/75f33cf051c5534b?hl=en
* Request test jig suggestion for microUSB phone charging current - 5 messages,
5 authors
http://groups.google.com/group/sci.electronics.repair/t/d4fd3d1d8e105a63?hl=en
==============================================================================
TOPIC: FUCk OFF TROLL
http://groups.google.com/group/sci.electronics.repair/t/9502cb5893036b52?hl=en
==============================================================================
== 1 of 1 ==
Date: Thurs, Jan 2 2014 1:40 pm
From: "Phil Allison"
"dave" <ricketzz@earthlink.net>
>> ** ROTFL !!
>>
>> You have been totally FUCKED for the whole of you miserable life -
>> asshole.
>>
>> Cos you were a genetic mental retard from birth.
>
> I was indeed born autistic.
** Finally you admit it.
That single, totally condemning fact wipes you out.
... Phil
==============================================================================
TOPIC: FUCK OFF Liebermann NUT CASE
http://groups.google.com/group/sci.electronics.repair/t/c90e1a6c9dfca321?hl=en
==============================================================================
== 1 of 15 ==
Date: Thurs, Jan 2 2014 1:41 pm
From: "Phil Allison"
"Bob Fuckwit ".
** Get cancer and fucking DIE !
Fuckwit plonker!
== 2 of 15 ==
Date: Thurs, Jan 2 2014 1:43 pm
From: "Phil Allison"
"dave" <ricketzz@earthlink.net>
** FOAD - you autistic IDIOT !!!!!!
== 3 of 15 ==
Date: Thurs, Jan 2 2014 1:54 pm
From: "Phil Allison"
"William Sommerwanker is a bullshitting ass."
>
>> So, why do people buy true-RMS voltmeters? If they don't measure
>> anything useful, why bother?
>
> A fair question.
** Wrong - it's a fuckwit question.
> Apparently, there was a time when AC power had a significant percentage of
> harmonics (perhaps it still does), and engineers wanted to know its "true"
> heating effect.
** Nonsense.
Any "moving iron" amp meter inherently reads "true RMS" values and they are
as old as the hills.
True RMS meters are mostly used to measure irregular signals like noise and
distorted current waveforms that exist with AC to DC supply conversion.
There is no way to compute these values ( from the peak or average rectified
value) as there is with sine or other regular waveforms.
.... Phil
== 4 of 15 ==
Date: Thurs, Jan 2 2014 1:55 pm
From: "Phil Allison"
"Jeff Liebermann"
Leiberman - you are the stupidest, most retarded, constantly lying fuckwit
on the NG.
Get cancer and fucking DIE !
NOW !!!!!!!!!!!!
== 5 of 15 ==
Date: Thurs, Jan 2 2014 2:47 pm
From: Jeff Liebermann
On Thu, 2 Jan 2014 11:21:15 -0800, "William Sommerwerck"
<grizzledgeezer@comcast.net> wrote:
>> Why do you keep quoting notes from Llewelen? He wrote a modeling
>> program for wire antennas. We are talking about FETs.
>
>Who is Llewelen?
Author of Eznec antenna modeling software:
<http://www.eznec.com>
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
== 6 of 15 ==
Date: Thurs, Jan 2 2014 3:43 pm
From: "Maynard A. Philbrook Jr."
In article <nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com>,
jeffl@cruzio.com says...
> > You are the stupidest, most retarded, constantly lying fuckwit on the NG.
> > Get cancer and fucking DIE !
>
> You'll not get rid of me that easily. I've already had cancer and
> Obamacare promises to keep me alive forever.
>
I'll be more than happy to put a Obama chia pet on your grave stone
for you.
I see Amazon has a deal for 28 bucks..
Jamie
== 7 of 15 ==
Date: Thurs, Jan 2 2014 4:07 pm
From: "Maynard A. Philbrook Jr."
In article <B4GdnYZ19saY4VjPnZ2dnUVZ_tudnZ2d@earthlink.com>,
ricketzz@earthlink.net says...
>
> On 01/02/2014 04:05 AM, William Sommerwerck wrote:
> > "Jeff Liebermann" wrote in message
> > news:nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com...
> >
> > <http://www.eznec.com/Amateur/RMS_Power.pdf>
> > On Pg 6 it says:
> > "The RMS value of power is not the equivalent heating power and,
> > in fact, it doesn't represent any useful physical quantity."
> > and:
> > "The RMS power is different than the average power, and therefore
> > isn?t the equivalent heating power. In fact, the RMS value of the
> > power doesn?t represent anything useful."
>
> > I remember a Popular Electronics quiz with questions about how a
> > voltmeter (at that time, a moving-coil device) would read, depending on
> > the waveform supplied. A key point was that the deflection was
> > proportional to the average current flowing through the coil, but the
> > meter was usually calibrated for the RMS value of a sinewave.
>
> Why do you keep quoting notes from Llewelen? He wrote a modeling program
> for wire antennas. We are talking about FETs.
>
> I think AVG = RMS only if waveform is pure sinewave. Otherwise you must
> use calorimeter or thermocouple to find true RMS.
AVG and RMS is not the same with sine waves..
Avg = 2/pi * peak Voltage.
And RMS is simply sqr( VP^2 / 2).
you'll notice the root his to look for the square not the
average of total voltage for example.
One can shorten that to say RMS = Vp * .707
Just think of a half round circle an draw and find the
area where you can evenly fit a square box in that half circle,
the value will be .707 times the Peak value of that circle.
Averaging ends up to be 2/pi = 0.637 * the peak voltage which
obviously gives you a different number..
And of course, no matter how you slice it, square waves at 50%
duty give you the same all around. AVG and RMS = peak.. cause there
is no slope in time for the avg and the nice square box I stated
fits perfectly in the already square wave for RMS. etc..
Jamie
== 8 of 15 ==
Date: Thurs, Jan 2 2014 4:11 pm
From: "Phil Allison"
"Maynard A. Philbrook Jr."
>
> And of course, no matter how you slice it, square waves at 50%
> duty give you the same all around. AVG and RMS = peak.. cause there
> is no slope in time ...
** Too complicated.
Q. When you ( full wave) rectify a square wave what do you get?
A. DC.
With DC, the average, peak and RMS value are the same.
Is any proof really needed ?
..... Phil
== 9 of 15 ==
Date: Thurs, Jan 2 2014 4:50 pm
From: "Maynard A. Philbrook Jr."
In article <bimdj1F69i3U1@mid.individual.net>, phil_a@tpg.com.au says...
>
> "Maynard A. Philbrook Jr."
> >
> > And of course, no matter how you slice it, square waves at 50%
> > duty give you the same all around. AVG and RMS = peak.. cause there
> > is no slope in time ...
>
> ** Too complicated.
>
> Q. When you ( full wave) rectify a square wave what do you get?
>
> A. DC.
>
> With DC, the average, peak and RMS value are the same.
>
> Is any proof really needed ?
>
>
>
>
> ..... Phil
And where was I disputing that?
Jamie
== 10 of 15 ==
Date: Thurs, Jan 2 2014 4:49 pm
From: "Phil Allison"
"Maynard A. Philbrook Jr."
> >
>> > And of course, no matter how you slice it, square waves at 50%
>> > duty give you the same all around. AVG and RMS = peak.. cause there
>> > is no slope in time ...
>>
>> ** Too complicated.
>>
>> Q. When you ( full wave) rectify a square wave what do you get?
>>
>> A. DC.
>>
>> With DC, the average, peak and RMS value are the same.
>>
>> Is any proof really needed ?
>>
>>
>
> And where was I disputing that?
** Yawnnnnnnnnn - wot a stupid straw man fallacy.
Read what I dam well wrote - fuckwit.
... Phil
== 11 of 15 ==
Date: Thurs, Jan 2 2014 4:51 pm
From: "Shaun"
"Phil Allison" wrote in message news:bik2r7FlgbdU1@mid.individual.net...
"Jeff Liebermann = retarded asshole "
>
>
>
>>>>> Ok, I yield to a higher authority. Heating power is average power:
>>>>> <http://www.eznec.com/Amateur/RMS_Power.pdf>
>>>>> However that doesn't stop nearly everyone from specifying RMS power.
>>>
>>>> ** There is no such quantity as " RMS power " if you are so stupid as
>>>> to
>>>>interpret the term literally.
>>>
>>> Which term should be interpreted non-literally?
>
>>** The term " RMS power " of course -
>
> I thought ...
** No you didn't - cos you are incapable of thought.
The quotation marks made my words quite *impossible* to misinterpret.
>>> Very good. But since there doesn't seem to be any correlation with
>>> heating power (despite using a thermocouple to do the measuring) and
>>> RMS volts or watts,
>>
>>** Quite wrong - there is a very close connection.
>
( snip more TOTALLY IRRELEVANT SHIT )
Leiberman - you are the stupidest, most retarded, constantly lying fuckwit
on the NG.
Get cancer and fucking DIE !
Hey Phil;
I used to work at an Industrial and Instrumentation repair and Calibration
shop that was licensed by Beckman to repair and calibrate there DMMs. In
the good ones, the RMS converted used a thermal method to determine RMS
Voltage and Current. That was 18 years ago and I don't remember any details
except that they used thermal measurement on a heated element. I have
compared the reading on the Beckman - Then Wavetek - now I don't know if
anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
readings matched.
I have always heard that if you really want to know the real value, you have
to buy an RMS meter.
Shaun
== 12 of 15 ==
Date: Thurs, Jan 2 2014 5:04 pm
From: "Phil Allison"
"Shaun"
>
> I used to work at an Industrial and Instrumentation repair and Calibration
> shop that was licensed by Beckman to repair and calibrate there DMMs. In
> the good ones, the RMS converted used a thermal method to determine RMS
> Voltage and Current. That was 18 years ago and I don't remember any
> details except that they used thermal measurement on a heated element. I
> have compared the reading on the Beckman - Then Wavetek - now I don't know
> if anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
> readings matched.
** No fooling...........
> I have always heard that if you really want to know the real value, you
> have to buy an RMS meter.
** That sort of nonsense *would* be said by someone who either owned an RMS
meter or was selling them.
Thermal RMS meters are virtually obsolete these days and have been replaced
by cheap analogue RMS to DC computation ICs in many hand held DMMs OR by
digital sampling computation in most DSOs.
The hand held kind have a limited measurement bandwidth compared to the
latter.
Depends what your needs are.
As Clint Eastwood might have said -
" Man's gotta know the limitations of his test equipment ".
.... Phil
== 13 of 15 ==
Date: Fri, Jan 3 2014 7:35 am
From: dave
On 01/02/2014 04:07 PM, Maynard A. Philbrook Jr. wrote:
> In article <B4GdnYZ19saY4VjPnZ2dnUVZ_tudnZ2d@earthlink.com>,
> ricketzz@earthlink.net says...
>>
>> On 01/02/2014 04:05 AM, William Sommerwerck wrote:
>>> "Jeff Liebermann" wrote in message
>>> news:nsj9c95bm2ec1giaju7tj0gc43ne25s007@4ax.com...
>>>
>>> <http://www.eznec.com/Amateur/RMS_Power.pdf>
>>> On Pg 6 it says:
>>> "The RMS value of power is not the equivalent heating power and,
>>> in fact, it doesn't represent any useful physical quantity."
>>> and:
>>> "The RMS power is different than the average power, and therefore
>>> isn?t the equivalent heating power. In fact, the RMS value of the
>>> power doesn?t represent anything useful."
>>
>>> I remember a Popular Electronics quiz with questions about how a
>>> voltmeter (at that time, a moving-coil device) would read, depending on
>>> the waveform supplied. A key point was that the deflection was
>>> proportional to the average current flowing through the coil, but the
>>> meter was usually calibrated for the RMS value of a sinewave.
>>
>> Why do you keep quoting notes from Llewelen? He wrote a modeling program
>> for wire antennas. We are talking about FETs.
>>
>> I think AVG = RMS only if waveform is pure sinewave. Otherwise you must
>> use calorimeter or thermocouple to find true RMS.
>
> AVG and RMS is not the same with sine waves..
>
Then they never are the same?
== 14 of 15 ==
Date: Fri, Jan 3 2014 7:41 am
From: dave
On 01/02/2014 05:04 PM, Phil Allison wrote:
>
> "Shaun"
>>
>> I used to work at an Industrial and Instrumentation repair and Calibration
>> shop that was licensed by Beckman to repair and calibrate there DMMs. In
>> the good ones, the RMS converted used a thermal method to determine RMS
>> Voltage and Current. That was 18 years ago and I don't remember any
>> details except that they used thermal measurement on a heated element. I
>> have compared the reading on the Beckman - Then Wavetek - now I don't know
>> if anyone is still making them, to a Fluke RMS DMM at 60 Hz and DC and the
>> readings matched.
>
> ** No fooling...........
>
>> I have always heard that if you really want to know the real value, you
>> have to buy an RMS meter.
>
> ** That sort of nonsense *would* be said by someone who either owned an RMS
> meter or was selling them.
>
> Thermal RMS meters are virtually obsolete these days and have been replaced
> by cheap analogue RMS to DC computation ICs in many hand held DMMs OR by
> digital sampling computation in most DSOs.
>
> The hand held kind have a limited measurement bandwidth compared to the
> latter.
>
> Depends what your needs are.
>
> As Clint Eastwood might have said -
>
> " Man's gotta know the limitations of his test equipment ".
>
>
>
>
> .... Phil
>
In television you calibrate the output power metering by operating into
a full power liquid cooled dummy load and measuring the temperature of
the coolant.
Using computational methods on amplifier input parameters is not the
preferred way to determine power (an efficiency factor must be assumed)
and you must ask the FCC for special permission to use the "direct method".
Dave the Re-Re
== 15 of 15 ==
Date: Fri, Jan 3 2014 9:10 am
From: "Michael A. Terrell"
William Sommerwerck wrote:
>
> "Jeff Liebermann" wrote in message
> news:quc9c95b8el5pqevbftgm87mqs5cf8akrh@4ax.com...
>
> > OK, I yield to a higher authority. Heating power is average power:
> > <http://www.eznec.com/Amateur/RMS_Power.pdf>
> > However that doesn't stop nearly everyone from specifying
> > RMS power.
>
> Unfortunately, no.
>
> > So, why do people buy true-RMS voltmeters? If they don't measure
> > anything useful, why bother?
>
> A fair question. Apparently, there was a time when AC power had a significant
> percentage of harmonics (perhaps it still does), and engineers wanted to know
> its "true" heating effect.
This is my favorite True RMS meter. Section three is a description
of how it works. The AC power line is anything but a clean sine wave.
Switching power supplies and older electronics with a single diode in
the power supply distort it, even more. The single diode causes a DC
component on your power, which confuses a simple analog meter. Three
phase is even worse, with all the harmonics on the neutral. There were a
lot of fires in office buildings and factories after the PC became
widespread. It used to be to code to use a smaller neutral on three
phase, than the tree phase lines. The harmonics caused the neutral to
overheat and in some cases, started fires.
I like this Fluke for many reasons, including the ability to read to
.01 dB variations in a signal. I used one to test the -3dB points on
video filters, up to 20 MHz. For anything higher I used a Boonton 9200
RF voltmeter.
Before someone smarts off, Video isn't just television. We produced
equipment with selectable bandwidth from DC>10 KHz to DC>40 MHz in 16
customer specified bandwidths. SDI digital video was 270 MHz, and HD is
even higher.
<http://www.ko4bb.com/Manuals/Fluke/Fluke_8920A_8921A_True_RMS_Voltmeter_Operation_and%20_Service_Manual_Oct78.pdf>
--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.
==============================================================================
TOPIC: Open SSID for HP printers
http://groups.google.com/group/sci.electronics.repair/t/2f0e2aeceb0c71fd?hl=en
==============================================================================
== 1 of 4 ==
Date: Thurs, Jan 2 2014 4:46 pm
From: root
I went walking around my neighborhood scanning for open wifi
hotspots and found several HP printers. Does that mean
that someone could park outside the place and a long stream
of documents to the printer(s)?
== 2 of 4 ==
Date: Thurs, Jan 2 2014 4:51 pm
From: Michael Black
On Fri, 3 Jan 2014, root wrote:
> I went walking around my neighborhood scanning for open wifi
> hotspots and found several HP printers. Does that mean
> that someone could park outside the place and a long stream
> of documents to the printer(s)?
>
>
Look on the bright side. They can't retrieve the printing unless they
break into your house.
Michael
== 3 of 4 ==
Date: Thurs, Jan 2 2014 7:54 pm
From: Paul Drahn
On 1/2/2014 4:51 PM, Michael Black wrote:
> On Fri, 3 Jan 2014, root wrote:
>
>> I went walking around my neighborhood scanning for open wifi
>> hotspots and found several HP printers. Does that mean
>> that someone could park outside the place and a long stream
>> of documents to the printer(s)?
>>
>>
> Look on the bright side. They can't retrieve the printing unless they
> break into your house.
>
> Michael
>
True, but they can print pornographic pictures for your kids viewing
pleasure.
Paul
== 4 of 4 ==
Date: Fri, Jan 3 2014 12:15 am
From: Leif Neland
Paul Drahn forklarede den 03-01-2014:
> On 1/2/2014 4:51 PM, Michael Black wrote:
>> On Fri, 3 Jan 2014, root wrote:
>>
>>> I went walking around my neighborhood scanning for open wifi
>>> hotspots and found several HP printers. Does that mean
>>> that someone could park outside the place and a long stream
>>> of documents to the printer(s)?
>>>
>>>
>> Look on the bright side. They can't retrieve the printing unless they
>> break into your house.
>>
>> Michael
>>
> True, but they can print pornographic pictures for your kids viewing
> pleasure.
>
Or, like a glazier hires a punk kid to break windows, an office supply
dealer can hire somebody to use all the toner and paper :-)
Leif
--
Husk k�relys bagp�, hvis din bilfabrikant har taget den idiotiske
beslutning at undlade det.
==============================================================================
TOPIC: Test post for Termey
http://groups.google.com/group/sci.electronics.repair/t/75f33cf051c5534b?hl=en
==============================================================================
== 1 of 1 ==
Date: Fri, Jan 3 2014 10:25 am
From: jurb6006@gmail.com
On Wednesday, January 1, 2014 4:52:09 PM UTC-5, jurb...@gmail.com wrote:
> I am testing this from Firefox now.
==============================================================================
TOPIC: Request test jig suggestion for microUSB phone charging current
http://groups.google.com/group/sci.electronics.repair/t/d4fd3d1d8e105a63?hl=en
==============================================================================
== 1 of 5 ==
Date: Fri, Jan 3 2014 1:55 pm
From: Danny D'Amico
How would you make a test jig out of a spare USB cable?
For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
male-to-male cable.
http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
If I cut the cable in half, and isolate the wires, how would you
recommend I set it up so that it could become a test jig
(to see how much charging current a device actually draws)?
Have you done this before and have advice for how to make that jig?
Specifically, how would you fasten the bare wires, which I presume
are very very thin, and therefore fragile?
Also, we'd need a way to insert the ammeter inline to measure
current.
Any test jig ideas I can benefit from?
NOTE: This is an offshoot of the USB charger thread, where we
determined that a 3.1 Amp dual-USB charger that is 10 Watts
is very different than the same spec at 15 Watts.
== 2 of 5 ==
Date: Fri, Jan 3 2014 2:09 pm
From: "Colin Horsley"
"Danny D'Amico" <danny@is.invalid> wrote in message
news:pan.2014.01.03.21.55.23@is.invalid...
: How would you make a test jig out of a spare USB cable?
:
: For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
: male-to-male cable.
: http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
: http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
:
: If I cut the cable in half, and isolate the wires, how would you
: recommend I set it up so that it could become a test jig
: (to see how much charging current a device actually draws)?
:
: Have you done this before and have advice for how to make that jig?
:
: Specifically, how would you fasten the bare wires, which I presume
: are very very thin, and therefore fragile?
:
: Also, we'd need a way to insert the ammeter inline to measure
: current.
:
: Any test jig ideas I can benefit from?
:
: NOTE: This is an offshoot of the USB charger thread, where we
: determined that a 3.1 Amp dual-USB charger that is 10 Watts
: is very different than the same spec at 15 Watts.
Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
Detector "
Colin
== 3 of 5 ==
Date: Fri, Jan 3 2014 3:09 pm
From: sms
On 1/3/2014 2:09 PM, Colin Horsley wrote:
> "Danny D'Amico" <danny@is.invalid> wrote in message
> news:pan.2014.01.03.21.55.23@is.invalid...
> : How would you make a test jig out of a spare USB cable?
> :
> : For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
> : male-to-male cable.
> : http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
> : http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
> :
> : If I cut the cable in half, and isolate the wires, how would you
> : recommend I set it up so that it could become a test jig
> : (to see how much charging current a device actually draws)?
> :
> : Have you done this before and have advice for how to make that jig?
> :
> : Specifically, how would you fasten the bare wires, which I presume
> : are very very thin, and therefore fragile?
> :
> : Also, we'd need a way to insert the ammeter inline to measure
> : current.
> :
> : Any test jig ideas I can benefit from?
> :
> : NOTE: This is an offshoot of the USB charger thread, where we
> : determined that a 3.1 Amp dual-USB charger that is 10 Watts
> : is very different than the same spec at 15 Watts.
>
> Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
> Detector "
or
<http://dx.com/p/usb-av-usb-power-current-voltage-tester-translucent-blue-silver-235090>
== 4 of 5 ==
Date: Fri, Jan 3 2014 4:24 pm
From: Danny D'Amico
On Sat, 04 Jan 2014 09:09:54 +1100, Colin Horsley wrote:
> Look on eBay "NEW Universal portable USB power mobile mini Current voltage tester
> Detector "
Hi Colin,
That works, but I was just going to slice a cable in half, and then attach
the inner wires to a series of screws.
What I'm thinking is to screw two row of (five?) brass screws into a
piece of wood, and then attaching the cable wires to each row.
Then I can either jump the distance with a copper wire, or with the
meter leads.
But before I build the test jig, someone might suggest a better platform
out of parts commonly found in the garage or shop.
== 5 of 5 ==
Date: Fri, Jan 3 2014 5:00 pm
From: mike
On 1/3/2014 3:09 PM, sms wrote:
> On 1/3/2014 2:09 PM, Colin Horsley wrote:
>> "Danny D'Amico" <danny@is.invalid> wrote in message
>> news:pan.2014.01.03.21.55.23@is.invalid...
>> : How would you make a test jig out of a spare USB cable?
>> :
>> : For $1.99, I bought at Frys today, this 6-foot USB-A to microB USB
>> : male-to-male cable.
>> : http://farm3.staticflickr.com/2894/11739074746_d8ebbfe363_o.jpg
>> : http://farm4.staticflickr.com/3770/11738580543_301162631e_o.jpg
>> :
>> : If I cut the cable in half, and isolate the wires, how would you
>> : recommend I set it up so that it could become a test jig
>> : (to see how much charging current a device actually draws)?
>> :
>> : Have you done this before and have advice for how to make that jig?
>> :
>> : Specifically, how would you fasten the bare wires, which I presume
>> : are very very thin, and therefore fragile?
>> :
>> : Also, we'd need a way to insert the ammeter inline to measure
>> : current.
>> :
>> : Any test jig ideas I can benefit from?
>> :
>> : NOTE: This is an offshoot of the USB charger thread, where we
>> : determined that a 3.1 Amp dual-USB charger that is 10 Watts
>> : is very different than the same spec at 15 Watts.
>>
>> Look on eBay "NEW Universal portable USB power mobile mini Current
>> voltage tester
>> Detector "
>
> or
> <http://dx.com/p/usb-av-usb-power-current-voltage-tester-translucent-blue-silver-235090>
>
>
>
Cool...I was ready to order one until I saw that the data doesn't pass thru.
WTF? The connectors are almost touching, why no data?
Kinda hard to measure the drain of a disk drive in action when it won't
come out of sleep.
Why would you not connect the data unless there were problems?
Anybody bridged the data? Results?
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Google Groups: http://groups.google.com/?hl=en
sci.electronics.repair - 26 new messages in 7 topics - digest
sci.electronics.repair
http://groups.google.com/group/sci.electronics.repair?hl=en
sci.electronics.repair@googlegroups.com
Today's topics:
* speaker phasing - 9 messages, 3 authors
http://groups.google.com/group/sci.electronics.repair/t/eca184e4b70201fe?hl=en
* sex scams in vietnam and other places - 5 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/152a2989e2e11e4a?hl=en
* Garmin Nuvi 42 Does not power up with battery - 5 messages, 5 authors
http://groups.google.com/group/sci.electronics.repair/t/61c54c6ca4467020?hl=en
* TV parts - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/49690f8dbddf787e?hl=en
* Energy Concepts Model 50200B schematic - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/cbe08c9b07d09002?hl=en
* transmit wirelessly from laptop to LCD TV?? - 4 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/e6ae6a4f928b739f?hl=en
* What's it called ... ? - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/ecc022623ecb3497?hl=en
==============================================================================
TOPIC: speaker phasing
http://groups.google.com/group/sci.electronics.repair/t/eca184e4b70201fe?hl=en
==============================================================================
== 1 of 9 ==
Date: Sat, Dec 7 2013 6:15 am
From: "William Sommerwerck"
I just found the following quote:
"Only the woofer/subwoofer were not bipolar. These relied in the use of SF6
(sulfur hexafluoride) gas (which is inert), to increase the virtual volume of
the enclosure. As SF6 is an 'ideal gas', it operates as an 'isothermal'
spring, thus avoiding the problems with 'acoustic-suspension' loudspeakers
that operated partially as an isothermal and partially as an adiabatic system.
Some designers seemed to lave little knowledge of Boyles Law or the Laws of
Thermodynamics.
"In effect, the use of SF6, increases the virtual volume of the enclosure by a
factor of 27! As can be appreciated, this both lowers the distortion as well
as permitting a lower resonant frequency of the woofer."
It's here...
http://www.dayton-wright.com/WATSONLABS_.html
I should point out that the bass cabinet is not completely filled with SF6. If
I recall correctly, the gas bags were separated with foam sheets.
== 2 of 9 ==
Date: Sat, Dec 7 2013 2:31 pm
From: "Phil Allison"
"William Sommerwerck"
>
>>>> It's been done. William Michael Watson Dayton-Wright built
>>>> conventional dynamic speakers with bags of SF6 in the woofer box.
>
>>> ** For what advantage ?
>
>>> The speed of sound is about half in SF6 but that is no help in a sealed
>>> box where resonance depends only on the stiffness of the volume of
>>> gas trapped behind the woofer.
>>
>>> The smaller the volume or the larger the woofer, the stiffer it becomes.
>
>> The lower speed of sound makes the bag appear to have a larger acoustic
>> volume than the air it replaces.
>
> ** You have simply ignored the question, which is the stiffness of a fixed
> volume of gas.
>
> Take a look at Boyle's Law (PV = k)
>
> As Michael Flanders put it...
** You have ignored the question AGAIN !!!!!
> I found the spec sheet. He describes the SF6 as performing a linearizing
> function.
** Pure marketing hype.
>> Really. The bass cabinet was about 20" by 20" by 12".
>
> ** That is not a "small cabinet" at circa 50 litres internal volume.
>
> I consider it "small",
** Yawnnnnnnnnnnnnnnnnn....
It is not small - a 10 litre box is small.
And Boyle's law makes all the claims re SF6 all wrong.
.... Phil
== 3 of 9 ==
Date: Sat, Dec 7 2013 2:46 pm
From: "Phil Allison"
"William Sommerwerck"
>I just found the following quote:
** I found it two days ago and roared laughing.
It is the greatest pile of * bullshit * I have ever seen about woofers.
> "Only the woofer/subwoofer were not bipolar. These relied in the use of
> SF6 (sulfur hexafluoride) gas (which is inert), to increase the virtual
> volume of the enclosure. As SF6 is an 'ideal gas', it operates as an
> 'isothermal' spring, thus avoiding the problems with 'acoustic-suspension'
> loudspeakers that operated partially as an isothermal and partially as an
> adiabatic system. Some designers seemed to lave little knowledge of Boyles
> Law or the Laws of Thermodynamics.
>
> "In effect, the use of SF6, increases the virtual volume of the enclosure
> by a factor of 27! As can be appreciated, this both lowers the distortion
> as well as permitting a lower resonant frequency of the woofer."
>
> It's here...
>
> http://www.dayton-wright.com/WATSONLABS_.html
** Marketing hype - not engineering fact.
The very next line is soooo telling:
" But to use this, a larger cone mass is needed and the suspension has to be
much more compliant."
Cos it contradicts the rest of the hype.
If SF6 worked as claimed, standard woofers would be all that was needed.
It doesn't.
.... Phil
== 4 of 9 ==
Date: Sun, Dec 8 2013 5:15 am
From: "William Sommerwerck"
Unfortunately, Mr Anuson, I owned these speakers and can vouch for their
performance.
Mr Anuson, name a brand and model of woofer, of the volume given, that can get
down to 16Hz with such low distortion. I'm waiting...
It's impossible to have any kind of a discussion -- you know everything.
You're polite when people agree with you, and a vicious -- I can't think of
anything bad enough -- when they don't.
== 5 of 9 ==
Date: Sun, Dec 8 2013 5:57 am
From: "William Sommerwerck"
Here's the answer to your question about Boyle's Law (which you will ignore,
of course)...
PV = k assumes a constant temperature. If the temperature changes, then PV
changes. The relationship is no longer linear, and as the air trapped in the
cabinet is supposedly providing a significant part of the restoring force, the
cone's displacement will not be as linear. (Duh... Get it?)
This is what WDW is talking about when he says "As SF6 is an 'ideal gas', it
operates as an 'isothermal' spring, thus avoiding the problems with
'acoustic-suspension' loudspeakers that operated partially as an isothermal
and partially as an adiabatic system. Some designers seemed to lave little
knowledge of Boyles Law or the Laws of Thermodynamics."
There is no such thing as an ideal gas, so WDW is wrong on this particular
point. However, if SF6 is significantly closer to being an isothermal gas than
air is, * then what he says makes sense. QED.
Gotcha! Finally got ya!
You may now jump up and down, Rumplestiltskin, until you break through the
floor.
* I can't find anything on this at the moment. But I'm looking.
== 6 of 9 ==
Date: Sun, Dec 8 2013 7:40 am
From: "Maynard A. Philbrook Jr."
In article <l81tsp$u0v$1@dont-email.me>, grizzledgeezer@comcast.net
says...
>
> Here's the answer to your question about Boyle's Law (which you will ignore,
> of course)...
>
> PV = k assumes a constant temperature. If the temperature changes, then PV
> changes. The relationship is no longer linear, and as the air trapped in the
> cabinet is supposedly providing a significant part of the restoring force, the
> cone's displacement will not be as linear. (Duh... Get it?)
>
> This is what WDW is talking about when he says "As SF6 is an 'ideal gas', it
> operates as an 'isothermal' spring, thus avoiding the problems with
> 'acoustic-suspension' loudspeakers that operated partially as an isothermal
> and partially as an adiabatic system. Some designers seemed to lave little
> knowledge of Boyles Law or the Laws of Thermodynamics."
>
> There is no such thing as an ideal gas, so WDW is wrong on this particular
> point. However, if SF6 is significantly closer to being an isothermal gas than
> air is, * then what he says makes sense. QED.
>
> Gotcha! Finally got ya!
But But But but!!!!!
:)
Jamie
== 7 of 9 ==
Date: Sun, Dec 8 2013 9:36 am
From: "William Sommerwerck"
"Maynard A. Philbrook Jr." wrote in message
news:MPG.2d0e5cef27c0eb009896e0@news.eternal-september.org...
In article <l81tsp$u0v$1@dont-email.me>, grizzledgeezer@comcast.net
says...
>> Gotcha! Finally got ya!
> But But But but!!!!!
> :)
Indeed. Hoist with his own petard.
The best part is that the point was reasonable, so I had to do some research.
In the process, I learned something.
== 8 of 9 ==
Date: Sun, Dec 8 2013 1:32 pm
From: "Phil Allison"
"William Sommerwanker"
>
> Here's the answer to your question about Boyle's Law (which you will
> ignore, of course)...
>
> PV = k assumes a constant temperature.
** PV= k shows that it does not matter what the gas is - the same volume
changes produce the same pressure changes.
So the stiffness of an enclosed volume of gas is the same for all gasses.
The resonance frequency of a woofer will be unaffected by it.
> If the temperature changes,
** Yawnnnnnnnnnnnn.....
Dunno who is the bigger LIAR.
You or the fuckwit you are mindlessly quoting.
.... Phil
== 9 of 9 ==
Date: Sun, Dec 8 2013 4:16 pm
From: "William Sommerwerck"
"Phil Allison" wrote in message news:bgk6rmF8e5nU1@mid.individual.net...
"William Sommerwanker"
> Here's the answer to your question about Boyle's Law (which you will ignore,
> of course)...
> PV = k assumes a constant temperature.
** PV= k shows that it does not matter what the gas is - the same volume
changes produce the same pressure changes.
Uh... No it doesn't. k is temperature-dependent. Sorry about that,. but all
you have to do is look it up.
If a gas isn't perfect, then compressing (or rarefying it) changes its
temperature. This causes the pressure to change more than that caused by the
volume change. The result is a non-linear restoring force.
> So the stiffness of an enclosed volume of gas is the same for all gasses.
> The resonance frequency of a woofer will be unaffected by it.
That's not what we're talking about, Mr Anuson.
> Dunno who is the bigger LIAR.
> You or the fuckwit you are mindlessly quoting.
I'm quoting physics books.
==============================================================================
TOPIC: sex scams in vietnam and other places
http://groups.google.com/group/sci.electronics.repair/t/152a2989e2e11e4a?hl=en
==============================================================================
== 1 of 5 ==
Date: Sat, Dec 7 2013 7:03 am
From: krw@attt.bizz
On Sat, 07 Dec 2013 07:04:49 -0500, Stormin Mormon
<cayoung61@hotmail.com> wrote:
>On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
>>> Were you in 'Nam during that time? Telling things from word of mouth or
>>> from real real life experience?
>>
>> My orders to Vietnam were changed to Alaska at the last minute. The
>> TV station I was to work at was over run about two weeks after I would
>> have arrived, and it's very likely I wouldn't be here since most of the
>> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
>> for parts at the station in Alaska.
>>
>> I had several underage girls try to trick me into bed while stationed
>> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
>> The worst part was that their families were making them prostitute
>> themselves because the parent or parents were too lazy to work. Some of
>> the girls were just 13. A couple of the other soldiers kept track of
>> who they were, and warned you they were minors. Still, a lot of guys
>> were screwed out of half of their pay, until they retired or didn't
>> re-enlist.
>
>I think it's a real shame, that we lose so many
>good people in that war. Glad that the spread
>of communism was slowed, for a while.
>
>A wise writer once wrote "thou shalt not commit
>adultery". If people would live that commandment,
>they would have better lives in so many ways.
fornication <> adultery. Get your bible straight, Mormon.
== 2 of 5 ==
Date: Sat, Dec 7 2013 7:05 am
From: krw@attt.bizz
On Fri, 06 Dec 2013 23:45:57 -0600, The Daring Dufas
<the-daring-dufas@stinky-finger.net> wrote:
>On 12/6/2013 10:45 PM, Michael A. Terrell wrote:
>>
>> The Daring Dufas wrote:
>>>
>>> Funny how the sex scam never changes. There's been a story about a
>>> football player who was accused of rape a year after it allegedly
>>> occurred only after his accuser found out he may wind up making lots of
>>> money playing professional ball. No, I'm not a football fan. ^_^
>>
>>
>> Footballs make terrible fans. Not enough surface area, and quite
>> unstable at high speeds. ;-)
Too aerodynamic. ...by design.
>
>They're only good for dodge ball. ^_^
That pointy end hurts!
== 3 of 5 ==
Date: Sun, Dec 8 2013 11:15 am
From: "Shaun"
"Stormin Mormon" wrote in message news:y9Eou.485493$c56.319033@fx32.iad...
On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
>> Were you in 'Nam during that time? Telling things from word of mouth or
>> from real real life experience?
>
> My orders to Vietnam were changed to Alaska at the last minute. The
> TV station I was to work at was over run about two weeks after I would
> have arrived, and it's very likely I wouldn't be here since most of the
> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
> for parts at the station in Alaska.
>
> I had several underage girls try to trick me into bed while stationed
> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
> The worst part was that their families were making them prostitute
> themselves because the parent or parents were too lazy to work. Some of
> the girls were just 13. A couple of the other soldiers kept track of
> who they were, and warned you they were minors. Still, a lot of guys
> were screwed out of half of their pay, until they retired or didn't
> re-enlist.
Why wasn't it reported to authorities, those young girls would likely have
emotional damage from the child prostitution.
They could be taken away from their good for nothing parents and they would
be criminally charged. I guess the difficult thing would not to implicate
your co-workers in solicitation and create a problem.
Shaun
== 4 of 5 ==
Date: Sun, Dec 8 2013 12:43 pm
From: The Daring Dufas
On 12/8/2013 1:15 PM, Shaun wrote:
>
>
> "Stormin Mormon" wrote in message news:y9Eou.485493$c56.319033@fx32.iad...
>
> On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
>>> Were you in 'Nam during that time? Telling things from word of mouth or
>>> from real real life experience?
>>
>> My orders to Vietnam were changed to Alaska at the last minute. The
>> TV station I was to work at was over run about two weeks after I would
>> have arrived, and it's very likely I wouldn't be here since most of the
>> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
>> for parts at the station in Alaska.
>>
>> I had several underage girls try to trick me into bed while stationed
>> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
>> The worst part was that their families were making them prostitute
>> themselves because the parent or parents were too lazy to work. Some of
>> the girls were just 13. A couple of the other soldiers kept track of
>> who they were, and warned you they were minors. Still, a lot of guys
>> were screwed out of half of their pay, until they retired or didn't
>> re-enlist.
>
>
> Why wasn't it reported to authorities, those young girls would likely
> have emotional damage from the child prostitution.
> They could be taken away from their good for nothing parents and they
> would be criminally charged. I guess the difficult thing would not to
> implicate your co-workers in solicitation and create a problem.
>
> Shaun
>
Shaun, too late, those young girls are now grandmothers. ^_^
TDD
== 5 of 5 ==
Date: Sun, Dec 8 2013 2:47 pm
From: "Maynard A. Philbrook Jr."
In article <l82lmc$ft2$3@dont-email.me>, the-daring-dufas@stinky-
finger.net says...
>
> On 12/8/2013 1:15 PM, Shaun wrote:
> >
> >
> > "Stormin Mormon" wrote in message news:y9Eou.485493$c56.319033@fx32.iad...
> >
> > On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
> >>> Were you in 'Nam during that time? Telling things from word of mouth or
> >>> from real real life experience?
> >>
> >> My orders to Vietnam were changed to Alaska at the last minute. The
> >> TV station I was to work at was over run about two weeks after I would
> >> have arrived, and it's very likely I wouldn't be here since most of the
> >> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
> >> for parts at the station in Alaska.
> >>
> >> I had several underage girls try to trick me into bed while stationed
> >> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
> >> The worst part was that their families were making them prostitute
> >> themselves because the parent or parents were too lazy to work. Some of
> >> the girls were just 13. A couple of the other soldiers kept track of
> >> who they were, and warned you they were minors. Still, a lot of guys
> >> were screwed out of half of their pay, until they retired or didn't
> >> re-enlist.
> >
> >
> > Why wasn't it reported to authorities, those young girls would likely
> > have emotional damage from the child prostitution.
> > They could be taken away from their good for nothing parents and they
> > would be criminally charged. I guess the difficult thing would not to
> > implicate your co-workers in solicitation and create a problem.
> >
> > Shaun
> >
>
> Shaun, too late, those young girls are now grandmothers. ^_^
>
> TDD
And most likely have no idea who the daddies are for all the kids
they popped out!
Jamie
==============================================================================
TOPIC: Garmin Nuvi 42 Does not power up with battery
http://groups.google.com/group/sci.electronics.repair/t/61c54c6ca4467020?hl=en
==============================================================================
== 1 of 5 ==
Date: Sat, Dec 7 2013 6:25 am
From: M.Joshi
I have a Garmin Nuvi 42 GPS device which does not power up from the
battery.
If I remove the battery and apply power via the USB socket, the unit
powers up. As soon as I connect the battery, the unit switches off.
The battery appears to be quite new and a good voltage.
--
M.Joshi
== 2 of 5 ==
Date: Sat, Dec 7 2013 7:36 am
From: N_Cook
On 07/12/2013 14:25, M.Joshi wrote:
>
> I have a Garmin Nuvi 42 GPS device which does not power up from the
> battery.
>
> If I remove the battery and apply power via the USB socket, the unit
> powers up. As soon as I connect the battery, the unit switches off.
>
> The battery appears to be quite new and a good voltage.
>
>
>
>
Is there a mechanical diverter switch inside the USB socket, like inside
simple pin and ring/ dual concentric power connectors?
== 3 of 5 ==
Date: Sat, Dec 7 2013 8:31 am
From: M.Joshi
N_Cook;3161821 Wrote:
> On 07/12/2013 14:25, M.Joshi wrote:-
>
> I have a Garmin Nuvi 42 GPS device which does not power up from the
> battery.
>
> If I remove the battery and apply power via the USB socket, the unit
> powers up. As soon as I connect the battery, the unit switches off.
>
> The battery appears to be quite new and a good voltage.
>
>
>
> -
>
> Is there a mechanical diverter switch inside the USB socket, like inside
>
> simple pin and ring/ dual concentric power connectors?
Not that I can see - just looks like a normal micro-USB socket (vertical
PCB mounted).
--
M.Joshi
== 4 of 5 ==
Date: Sat, Dec 7 2013 10:53 am
From: mike
On 12/7/2013 6:25 AM, M.Joshi wrote:
>
> I have a Garmin Nuvi 42 GPS device which does not power up from the
> battery.
>
> If I remove the battery and apply power via the USB socket, the unit
> powers up. As soon as I connect the battery, the unit switches off.
>
> The battery appears to be quite new and a good voltage.
>
>
>
>
For the benefit of those of us who can't take apart a Nuvi 42 and look
inside...
Was it working then broke? Or did you buy it used broke?
How do you remove the battery? unsolder wires? unplug? how many
conductors?
What's the battery chemistry? How many cells? I'm gonna assume some
form of lithium,
but I have no idea how old a 42 is.
Where is the battery protection circuit? Integral with the battery? on the
GPS circuit board? Which side of the protection circuit are you measuring?
What's your definiition of good? Battery voltage is determined by
numbers. "Good" is not a number, and it can matter.
What's the voltage on the battery connection where you removed
the battery with the usb plugged in?
Fuses on the board?
== 5 of 5 ==
Date: Sat, Dec 7 2013 4:59 pm
From: Jeff Liebermann
On Sat, 7 Dec 2013 15:25:18 +0100, M.Joshi
<M.Joshi.ce8f169@diybanter.com> wrote:
>I have a Garmin Nuvi 42 GPS device which does not power up from the
>battery.
>
>If I remove the battery and apply power via the USB socket, the unit
>powers up. As soon as I connect the battery, the unit switches off.
The warranty is 1 year parts and labor. If you think it's broken,
find your receipt and contact Gamin.
<http://www8.garmin.com/support/warranty.html>
>The battery appears to be quite new and a good voltage.
Appearances don't count for much and assumptions are even worse. From
your description, it sounds like a shorted LiIon battery. Replace
battery:
<http://www.ebay.com/itm/360768752873> $11.24
I couldn't find any instructions on the web on how to replace the
battery.
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
==============================================================================
TOPIC: TV parts
http://groups.google.com/group/sci.electronics.repair/t/49690f8dbddf787e?hl=en
==============================================================================
== 1 of 1 ==
Date: Sat, Dec 7 2013 9:56 am
From: Hench
On 12/4/2013 5:21 PM, Vince Schmitt wrote:
> Hi!
> Where is the best place to buy parts for Panasonic TVs?
> Thank you
> Vince
>
Where do you live? I'm assuming Mongolia since your name is Mongolian
in origin it appears. Look on Mongolian Kijiji.
Or I could be wrong. You may be in Trinidad and/or Tobago.
Then again you may be in Iceland
==============================================================================
TOPIC: Energy Concepts Model 50200B schematic
http://groups.google.com/group/sci.electronics.repair/t/cbe08c9b07d09002?hl=en
==============================================================================
== 1 of 1 ==
Date: Sat, Dec 7 2013 5:25 pm
From: amdx
Hi all,
I'm looking for calibration data for the Energy Concepts Model 50200B
and Model 20500. I mostly want to know what pot adjusts what. A complete
schematic would be nice.
Similar to these:
http://www.ebay.com/itm/Energy-Concepts-Digital-Solid-State-Power-Supply-Model-20500A-/110896837403?pt=LH_DefaultDomain_0&hash=item19d1f7731b
http://www.ebay.com/itm/ECI-Energy-Concepts-Inc-Model-50200-Digital-Multimeter-/271217912538?pt=LH_DefaultDomain_0&hash=item3f25d8eada
Thanks, Mikek
==============================================================================
TOPIC: transmit wirelessly from laptop to LCD TV??
http://groups.google.com/group/sci.electronics.repair/t/e6ae6a4f928b739f?hl=en
==============================================================================
== 1 of 4 ==
Date: Sat, Dec 7 2013 6:51 pm
From: Roger Blake
On 2013-12-07, Sammy Abernathy <sammy455091@yahoo.com> wrote:
> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
> a cheap way I can do this wirelessly and, if so, how?
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7624371&CatId=384
--
-----------------------------------------------------------------------------
Roger Blake (Change "invalid" to "com" for email. Google Groups killfiled.)
The NSA by its actions has shredded the 4th Amendment of the Constitution
and has essentially declared war on the American people. Put the NSA leaders
on trial for treason, and upon being found guilty, publicly execute them to
send a strong message. God bless Ed Snowden! Death to NSA thugs!
-----------------------------------------------------------------------------
== 2 of 4 ==
Date: Sun, Dec 8 2013 9:19 am
From: dave
On 12/07/2013 06:51 PM, Roger Blake wrote:
> On 2013-12-07, Sammy Abernathy <sammy455091@yahoo.com> wrote:
>> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
>> a cheap way I can do this wirelessly and, if so, how?
>
> http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7624371&CatId=384
>
Do you have Blutooth [sic] on both devices? Does the TV have a USB
input? You can get Blootooth dongles,
== 3 of 4 ==
Date: Sun, Dec 8 2013 11:40 am
From: mike
On 12/8/2013 9:19 AM, dave wrote:
> On 12/07/2013 06:51 PM, Roger Blake wrote:
>> On 2013-12-07, Sammy Abernathy <sammy455091@yahoo.com> wrote:
>>> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
>>> a cheap way I can do this wirelessly and, if so, how?
>>
>> http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7624371&CatId=384
>>
>>
>
> Do you have Blutooth [sic] on both devices? Does the TV have a USB
> input? You can get Blootooth dongles,
I have two older technology devices like this.
Great for watching a movie.
Reading text is impossible.
Imagine a picture with way too much jpg compression.
I expect current generation is better...just hard to
tell without seeing one in action.
Cheapest may not be the best metric.
Suggest you get a demo before spending a lot of money.
At lest get advice from someone who actually uses the
EXACT model you're contemplating.
== 4 of 4 ==
Date: Sun, Dec 8 2013 1:12 pm
From: Adrian C
On 07/12/2013 13:59, Sammy Abernathy wrote:
> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
> a cheap way I can do this wirelessly and, if so, how?
Connect a video camera to the TV, focus and point it at the laptop
screen. There you go! Wireless :p
If you just want to watch video files you have stored on the laptop, a
network connected media player would be a solution to access the laptop
drive via WiFi. Cheap, you might have one already built into your TV if
it advertises itself as "Smart" or DNLA, or similar built into connected
Blueray or PVR equipment.
There are also software methods about (e.g VLC) to turn a computer
display into a video stream, that may also be rendered by such a media
player. Won't be the best in responsiveness as there will be a delay for
encoding the stream - so useless for gaming.
And then there's wireless HDMI....
--
Adrian C
==============================================================================
TOPIC: What's it called ... ?
http://groups.google.com/group/sci.electronics.repair/t/ecc022623ecb3497?hl=en
==============================================================================
== 1 of 1 ==
Date: Sun, Dec 8 2013 3:27 pm
From: chuck
On Mon, 2 Dec 2013 12:09:14 -0000, "Arfa Daily"
<arfa.daily@ntlworld.com> wrote:
>
>
>"JW" <none@dev.null> wrote in message
>news:reqo995bcf5p9sg37rcr2rkqn0nce51akr@4ax.com...
>> On Mon, 02 Dec 2013 06:03:50 -0500 JW <none@dev.null> wrote in Message id:
>> <m7qo99hiskcsmgr2679qjq49tno4465av1@4ax.com>:
>>
>>>On Mon, 2 Dec 2013 10:01:10 -0000 "Arfa Daily" <arfa.daily@ntlworld.com>
>>>wrote in Message id: <68Zmu.992$8z2.404@fx18.am4>:
>>>
>>>>Anyone know the name or catalogue description of that flat ribbon cable,
>>>>usually grey but sometimes black, that has a sort of 'web' between the
>>>>conductors, and is tinned when you strip it ? Each individual wire is
>>>>probably about one wire-width distant from its neighbours, so a piece say
>>>>8
>>>>conductors wide would be about the same width as a 'traditional' ribbon
>>>>of
>>>>16 conductors. It's used to interconnect boards typically - think HK
>>>>Actor
>>>>or various Fender combos that have the preamp tubes on separate sub
>>>>boards.
>>>>Also used with those dreadful snatch connectors where the contacts grip
>>>>the
>>>>soldered wire surface so hard that you always finish up with the tinned
>>>>tails bending, which then makes them a bitch to get back into the
>>>>connector.
>>>>
>>>>Anyone ?
>>>>
>>>>Arfa
>>>
>>>Possibly?
>>>http://www.digikey.com/product-detail/en/3365%2F06%20300SF/MC06G-300-ND/1832096
>>
>> Or better yet
>> http://www.digikey.com/product-detail/en/8125%2F04%20100/ML04G-100-ND/1107830
>>
>
>That looks pretty much like it. Looks like it's made by 3M. I'll do some
>more hunting based on that. Thanks for your input
>
>Arfa
It is made by 3M. We used to get it from Mouser or Digikey to repair
Sony BetaCam decks. Some operators would constantly move the control
panel up and down breaking the ribbon cable link. Chuck
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Google Groups: http://groups.google.com/?hl=en
http://groups.google.com/group/sci.electronics.repair?hl=en
sci.electronics.repair@googlegroups.com
Today's topics:
* speaker phasing - 9 messages, 3 authors
http://groups.google.com/group/sci.electronics.repair/t/eca184e4b70201fe?hl=en
* sex scams in vietnam and other places - 5 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/152a2989e2e11e4a?hl=en
* Garmin Nuvi 42 Does not power up with battery - 5 messages, 5 authors
http://groups.google.com/group/sci.electronics.repair/t/61c54c6ca4467020?hl=en
* TV parts - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/49690f8dbddf787e?hl=en
* Energy Concepts Model 50200B schematic - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/cbe08c9b07d09002?hl=en
* transmit wirelessly from laptop to LCD TV?? - 4 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/e6ae6a4f928b739f?hl=en
* What's it called ... ? - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/ecc022623ecb3497?hl=en
==============================================================================
TOPIC: speaker phasing
http://groups.google.com/group/sci.electronics.repair/t/eca184e4b70201fe?hl=en
==============================================================================
== 1 of 9 ==
Date: Sat, Dec 7 2013 6:15 am
From: "William Sommerwerck"
I just found the following quote:
"Only the woofer/subwoofer were not bipolar. These relied in the use of SF6
(sulfur hexafluoride) gas (which is inert), to increase the virtual volume of
the enclosure. As SF6 is an 'ideal gas', it operates as an 'isothermal'
spring, thus avoiding the problems with 'acoustic-suspension' loudspeakers
that operated partially as an isothermal and partially as an adiabatic system.
Some designers seemed to lave little knowledge of Boyles Law or the Laws of
Thermodynamics.
"In effect, the use of SF6, increases the virtual volume of the enclosure by a
factor of 27! As can be appreciated, this both lowers the distortion as well
as permitting a lower resonant frequency of the woofer."
It's here...
http://www.dayton-wright.com/WATSONLABS_.html
I should point out that the bass cabinet is not completely filled with SF6. If
I recall correctly, the gas bags were separated with foam sheets.
== 2 of 9 ==
Date: Sat, Dec 7 2013 2:31 pm
From: "Phil Allison"
"William Sommerwerck"
>
>>>> It's been done. William Michael Watson Dayton-Wright built
>>>> conventional dynamic speakers with bags of SF6 in the woofer box.
>
>>> ** For what advantage ?
>
>>> The speed of sound is about half in SF6 but that is no help in a sealed
>>> box where resonance depends only on the stiffness of the volume of
>>> gas trapped behind the woofer.
>>
>>> The smaller the volume or the larger the woofer, the stiffer it becomes.
>
>> The lower speed of sound makes the bag appear to have a larger acoustic
>> volume than the air it replaces.
>
> ** You have simply ignored the question, which is the stiffness of a fixed
> volume of gas.
>
> Take a look at Boyle's Law (PV = k)
>
> As Michael Flanders put it...
** You have ignored the question AGAIN !!!!!
> I found the spec sheet. He describes the SF6 as performing a linearizing
> function.
** Pure marketing hype.
>> Really. The bass cabinet was about 20" by 20" by 12".
>
> ** That is not a "small cabinet" at circa 50 litres internal volume.
>
> I consider it "small",
** Yawnnnnnnnnnnnnnnnnn....
It is not small - a 10 litre box is small.
And Boyle's law makes all the claims re SF6 all wrong.
.... Phil
== 3 of 9 ==
Date: Sat, Dec 7 2013 2:46 pm
From: "Phil Allison"
"William Sommerwerck"
>I just found the following quote:
** I found it two days ago and roared laughing.
It is the greatest pile of * bullshit * I have ever seen about woofers.
> "Only the woofer/subwoofer were not bipolar. These relied in the use of
> SF6 (sulfur hexafluoride) gas (which is inert), to increase the virtual
> volume of the enclosure. As SF6 is an 'ideal gas', it operates as an
> 'isothermal' spring, thus avoiding the problems with 'acoustic-suspension'
> loudspeakers that operated partially as an isothermal and partially as an
> adiabatic system. Some designers seemed to lave little knowledge of Boyles
> Law or the Laws of Thermodynamics.
>
> "In effect, the use of SF6, increases the virtual volume of the enclosure
> by a factor of 27! As can be appreciated, this both lowers the distortion
> as well as permitting a lower resonant frequency of the woofer."
>
> It's here...
>
> http://www.dayton-wright.com/WATSONLABS_.html
** Marketing hype - not engineering fact.
The very next line is soooo telling:
" But to use this, a larger cone mass is needed and the suspension has to be
much more compliant."
Cos it contradicts the rest of the hype.
If SF6 worked as claimed, standard woofers would be all that was needed.
It doesn't.
.... Phil
== 4 of 9 ==
Date: Sun, Dec 8 2013 5:15 am
From: "William Sommerwerck"
Unfortunately, Mr Anuson, I owned these speakers and can vouch for their
performance.
Mr Anuson, name a brand and model of woofer, of the volume given, that can get
down to 16Hz with such low distortion. I'm waiting...
It's impossible to have any kind of a discussion -- you know everything.
You're polite when people agree with you, and a vicious -- I can't think of
anything bad enough -- when they don't.
== 5 of 9 ==
Date: Sun, Dec 8 2013 5:57 am
From: "William Sommerwerck"
Here's the answer to your question about Boyle's Law (which you will ignore,
of course)...
PV = k assumes a constant temperature. If the temperature changes, then PV
changes. The relationship is no longer linear, and as the air trapped in the
cabinet is supposedly providing a significant part of the restoring force, the
cone's displacement will not be as linear. (Duh... Get it?)
This is what WDW is talking about when he says "As SF6 is an 'ideal gas', it
operates as an 'isothermal' spring, thus avoiding the problems with
'acoustic-suspension' loudspeakers that operated partially as an isothermal
and partially as an adiabatic system. Some designers seemed to lave little
knowledge of Boyles Law or the Laws of Thermodynamics."
There is no such thing as an ideal gas, so WDW is wrong on this particular
point. However, if SF6 is significantly closer to being an isothermal gas than
air is, * then what he says makes sense. QED.
Gotcha! Finally got ya!
You may now jump up and down, Rumplestiltskin, until you break through the
floor.
* I can't find anything on this at the moment. But I'm looking.
== 6 of 9 ==
Date: Sun, Dec 8 2013 7:40 am
From: "Maynard A. Philbrook Jr."
In article <l81tsp$u0v$1@dont-email.me>, grizzledgeezer@comcast.net
says...
>
> Here's the answer to your question about Boyle's Law (which you will ignore,
> of course)...
>
> PV = k assumes a constant temperature. If the temperature changes, then PV
> changes. The relationship is no longer linear, and as the air trapped in the
> cabinet is supposedly providing a significant part of the restoring force, the
> cone's displacement will not be as linear. (Duh... Get it?)
>
> This is what WDW is talking about when he says "As SF6 is an 'ideal gas', it
> operates as an 'isothermal' spring, thus avoiding the problems with
> 'acoustic-suspension' loudspeakers that operated partially as an isothermal
> and partially as an adiabatic system. Some designers seemed to lave little
> knowledge of Boyles Law or the Laws of Thermodynamics."
>
> There is no such thing as an ideal gas, so WDW is wrong on this particular
> point. However, if SF6 is significantly closer to being an isothermal gas than
> air is, * then what he says makes sense. QED.
>
> Gotcha! Finally got ya!
But But But but!!!!!
:)
Jamie
== 7 of 9 ==
Date: Sun, Dec 8 2013 9:36 am
From: "William Sommerwerck"
"Maynard A. Philbrook Jr." wrote in message
news:MPG.2d0e5cef27c0eb009896e0@news.eternal-september.org...
In article <l81tsp$u0v$1@dont-email.me>, grizzledgeezer@comcast.net
says...
>> Gotcha! Finally got ya!
> But But But but!!!!!
> :)
Indeed. Hoist with his own petard.
The best part is that the point was reasonable, so I had to do some research.
In the process, I learned something.
== 8 of 9 ==
Date: Sun, Dec 8 2013 1:32 pm
From: "Phil Allison"
"William Sommerwanker"
>
> Here's the answer to your question about Boyle's Law (which you will
> ignore, of course)...
>
> PV = k assumes a constant temperature.
** PV= k shows that it does not matter what the gas is - the same volume
changes produce the same pressure changes.
So the stiffness of an enclosed volume of gas is the same for all gasses.
The resonance frequency of a woofer will be unaffected by it.
> If the temperature changes,
** Yawnnnnnnnnnnnn.....
Dunno who is the bigger LIAR.
You or the fuckwit you are mindlessly quoting.
.... Phil
== 9 of 9 ==
Date: Sun, Dec 8 2013 4:16 pm
From: "William Sommerwerck"
"Phil Allison" wrote in message news:bgk6rmF8e5nU1@mid.individual.net...
"William Sommerwanker"
> Here's the answer to your question about Boyle's Law (which you will ignore,
> of course)...
> PV = k assumes a constant temperature.
** PV= k shows that it does not matter what the gas is - the same volume
changes produce the same pressure changes.
Uh... No it doesn't. k is temperature-dependent. Sorry about that,. but all
you have to do is look it up.
If a gas isn't perfect, then compressing (or rarefying it) changes its
temperature. This causes the pressure to change more than that caused by the
volume change. The result is a non-linear restoring force.
> So the stiffness of an enclosed volume of gas is the same for all gasses.
> The resonance frequency of a woofer will be unaffected by it.
That's not what we're talking about, Mr Anuson.
> Dunno who is the bigger LIAR.
> You or the fuckwit you are mindlessly quoting.
I'm quoting physics books.
==============================================================================
TOPIC: sex scams in vietnam and other places
http://groups.google.com/group/sci.electronics.repair/t/152a2989e2e11e4a?hl=en
==============================================================================
== 1 of 5 ==
Date: Sat, Dec 7 2013 7:03 am
From: krw@attt.bizz
On Sat, 07 Dec 2013 07:04:49 -0500, Stormin Mormon
<cayoung61@hotmail.com> wrote:
>On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
>>> Were you in 'Nam during that time? Telling things from word of mouth or
>>> from real real life experience?
>>
>> My orders to Vietnam were changed to Alaska at the last minute. The
>> TV station I was to work at was over run about two weeks after I would
>> have arrived, and it's very likely I wouldn't be here since most of the
>> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
>> for parts at the station in Alaska.
>>
>> I had several underage girls try to trick me into bed while stationed
>> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
>> The worst part was that their families were making them prostitute
>> themselves because the parent or parents were too lazy to work. Some of
>> the girls were just 13. A couple of the other soldiers kept track of
>> who they were, and warned you they were minors. Still, a lot of guys
>> were screwed out of half of their pay, until they retired or didn't
>> re-enlist.
>
>I think it's a real shame, that we lose so many
>good people in that war. Glad that the spread
>of communism was slowed, for a while.
>
>A wise writer once wrote "thou shalt not commit
>adultery". If people would live that commandment,
>they would have better lives in so many ways.
fornication <> adultery. Get your bible straight, Mormon.
== 2 of 5 ==
Date: Sat, Dec 7 2013 7:05 am
From: krw@attt.bizz
On Fri, 06 Dec 2013 23:45:57 -0600, The Daring Dufas
<the-daring-dufas@stinky-finger.net> wrote:
>On 12/6/2013 10:45 PM, Michael A. Terrell wrote:
>>
>> The Daring Dufas wrote:
>>>
>>> Funny how the sex scam never changes. There's been a story about a
>>> football player who was accused of rape a year after it allegedly
>>> occurred only after his accuser found out he may wind up making lots of
>>> money playing professional ball. No, I'm not a football fan. ^_^
>>
>>
>> Footballs make terrible fans. Not enough surface area, and quite
>> unstable at high speeds. ;-)
Too aerodynamic. ...by design.
>
>They're only good for dodge ball. ^_^
That pointy end hurts!
== 3 of 5 ==
Date: Sun, Dec 8 2013 11:15 am
From: "Shaun"
"Stormin Mormon" wrote in message news:y9Eou.485493$c56.319033@fx32.iad...
On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
>> Were you in 'Nam during that time? Telling things from word of mouth or
>> from real real life experience?
>
> My orders to Vietnam were changed to Alaska at the last minute. The
> TV station I was to work at was over run about two weeks after I would
> have arrived, and it's very likely I wouldn't be here since most of the
> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
> for parts at the station in Alaska.
>
> I had several underage girls try to trick me into bed while stationed
> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
> The worst part was that their families were making them prostitute
> themselves because the parent or parents were too lazy to work. Some of
> the girls were just 13. A couple of the other soldiers kept track of
> who they were, and warned you they were minors. Still, a lot of guys
> were screwed out of half of their pay, until they retired or didn't
> re-enlist.
Why wasn't it reported to authorities, those young girls would likely have
emotional damage from the child prostitution.
They could be taken away from their good for nothing parents and they would
be criminally charged. I guess the difficult thing would not to implicate
your co-workers in solicitation and create a problem.
Shaun
== 4 of 5 ==
Date: Sun, Dec 8 2013 12:43 pm
From: The Daring Dufas
On 12/8/2013 1:15 PM, Shaun wrote:
>
>
> "Stormin Mormon" wrote in message news:y9Eou.485493$c56.319033@fx32.iad...
>
> On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
>>> Were you in 'Nam during that time? Telling things from word of mouth or
>>> from real real life experience?
>>
>> My orders to Vietnam were changed to Alaska at the last minute. The
>> TV station I was to work at was over run about two weeks after I would
>> have arrived, and it's very likely I wouldn't be here since most of the
>> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
>> for parts at the station in Alaska.
>>
>> I had several underage girls try to trick me into bed while stationed
>> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
>> The worst part was that their families were making them prostitute
>> themselves because the parent or parents were too lazy to work. Some of
>> the girls were just 13. A couple of the other soldiers kept track of
>> who they were, and warned you they were minors. Still, a lot of guys
>> were screwed out of half of their pay, until they retired or didn't
>> re-enlist.
>
>
> Why wasn't it reported to authorities, those young girls would likely
> have emotional damage from the child prostitution.
> They could be taken away from their good for nothing parents and they
> would be criminally charged. I guess the difficult thing would not to
> implicate your co-workers in solicitation and create a problem.
>
> Shaun
>
Shaun, too late, those young girls are now grandmothers. ^_^
TDD
== 5 of 5 ==
Date: Sun, Dec 8 2013 2:47 pm
From: "Maynard A. Philbrook Jr."
In article <l82lmc$ft2$3@dont-email.me>, the-daring-dufas@stinky-
finger.net says...
>
> On 12/8/2013 1:15 PM, Shaun wrote:
> >
> >
> > "Stormin Mormon" wrote in message news:y9Eou.485493$c56.319033@fx32.iad...
> >
> > On 12/6/2013 11:43 PM, Michael A. Terrell wrote:
> >>> Were you in 'Nam during that time? Telling things from word of mouth or
> >>> from real real life experience?
> >>
> >> My orders to Vietnam were changed to Alaska at the last minute. The
> >> TV station I was to work at was over run about two weeks after I would
> >> have arrived, and it's very likely I wouldn't be here since most of the
> >> staff was killed. I got what was left of a 5 KW Gates VHF TV transmitter
> >> for parts at the station in Alaska.
> >>
> >> I had several underage girls try to trick me into bed while stationed
> >> at Ft. Rucker. They used a lot of makeup, and some guys fell for it.
> >> The worst part was that their families were making them prostitute
> >> themselves because the parent or parents were too lazy to work. Some of
> >> the girls were just 13. A couple of the other soldiers kept track of
> >> who they were, and warned you they were minors. Still, a lot of guys
> >> were screwed out of half of their pay, until they retired or didn't
> >> re-enlist.
> >
> >
> > Why wasn't it reported to authorities, those young girls would likely
> > have emotional damage from the child prostitution.
> > They could be taken away from their good for nothing parents and they
> > would be criminally charged. I guess the difficult thing would not to
> > implicate your co-workers in solicitation and create a problem.
> >
> > Shaun
> >
>
> Shaun, too late, those young girls are now grandmothers. ^_^
>
> TDD
And most likely have no idea who the daddies are for all the kids
they popped out!
Jamie
==============================================================================
TOPIC: Garmin Nuvi 42 Does not power up with battery
http://groups.google.com/group/sci.electronics.repair/t/61c54c6ca4467020?hl=en
==============================================================================
== 1 of 5 ==
Date: Sat, Dec 7 2013 6:25 am
From: M.Joshi
I have a Garmin Nuvi 42 GPS device which does not power up from the
battery.
If I remove the battery and apply power via the USB socket, the unit
powers up. As soon as I connect the battery, the unit switches off.
The battery appears to be quite new and a good voltage.
--
M.Joshi
== 2 of 5 ==
Date: Sat, Dec 7 2013 7:36 am
From: N_Cook
On 07/12/2013 14:25, M.Joshi wrote:
>
> I have a Garmin Nuvi 42 GPS device which does not power up from the
> battery.
>
> If I remove the battery and apply power via the USB socket, the unit
> powers up. As soon as I connect the battery, the unit switches off.
>
> The battery appears to be quite new and a good voltage.
>
>
>
>
Is there a mechanical diverter switch inside the USB socket, like inside
simple pin and ring/ dual concentric power connectors?
== 3 of 5 ==
Date: Sat, Dec 7 2013 8:31 am
From: M.Joshi
N_Cook;3161821 Wrote:
> On 07/12/2013 14:25, M.Joshi wrote:-
>
> I have a Garmin Nuvi 42 GPS device which does not power up from the
> battery.
>
> If I remove the battery and apply power via the USB socket, the unit
> powers up. As soon as I connect the battery, the unit switches off.
>
> The battery appears to be quite new and a good voltage.
>
>
>
> -
>
> Is there a mechanical diverter switch inside the USB socket, like inside
>
> simple pin and ring/ dual concentric power connectors?
Not that I can see - just looks like a normal micro-USB socket (vertical
PCB mounted).
--
M.Joshi
== 4 of 5 ==
Date: Sat, Dec 7 2013 10:53 am
From: mike
On 12/7/2013 6:25 AM, M.Joshi wrote:
>
> I have a Garmin Nuvi 42 GPS device which does not power up from the
> battery.
>
> If I remove the battery and apply power via the USB socket, the unit
> powers up. As soon as I connect the battery, the unit switches off.
>
> The battery appears to be quite new and a good voltage.
>
>
>
>
For the benefit of those of us who can't take apart a Nuvi 42 and look
inside...
Was it working then broke? Or did you buy it used broke?
How do you remove the battery? unsolder wires? unplug? how many
conductors?
What's the battery chemistry? How many cells? I'm gonna assume some
form of lithium,
but I have no idea how old a 42 is.
Where is the battery protection circuit? Integral with the battery? on the
GPS circuit board? Which side of the protection circuit are you measuring?
What's your definiition of good? Battery voltage is determined by
numbers. "Good" is not a number, and it can matter.
What's the voltage on the battery connection where you removed
the battery with the usb plugged in?
Fuses on the board?
== 5 of 5 ==
Date: Sat, Dec 7 2013 4:59 pm
From: Jeff Liebermann
On Sat, 7 Dec 2013 15:25:18 +0100, M.Joshi
<M.Joshi.ce8f169@diybanter.com> wrote:
>I have a Garmin Nuvi 42 GPS device which does not power up from the
>battery.
>
>If I remove the battery and apply power via the USB socket, the unit
>powers up. As soon as I connect the battery, the unit switches off.
The warranty is 1 year parts and labor. If you think it's broken,
find your receipt and contact Gamin.
<http://www8.garmin.com/support/warranty.html>
>The battery appears to be quite new and a good voltage.
Appearances don't count for much and assumptions are even worse. From
your description, it sounds like a shorted LiIon battery. Replace
battery:
<http://www.ebay.com/itm/360768752873> $11.24
I couldn't find any instructions on the web on how to replace the
battery.
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
==============================================================================
TOPIC: TV parts
http://groups.google.com/group/sci.electronics.repair/t/49690f8dbddf787e?hl=en
==============================================================================
== 1 of 1 ==
Date: Sat, Dec 7 2013 9:56 am
From: Hench
On 12/4/2013 5:21 PM, Vince Schmitt wrote:
> Hi!
> Where is the best place to buy parts for Panasonic TVs?
> Thank you
> Vince
>
Where do you live? I'm assuming Mongolia since your name is Mongolian
in origin it appears. Look on Mongolian Kijiji.
Or I could be wrong. You may be in Trinidad and/or Tobago.
Then again you may be in Iceland
==============================================================================
TOPIC: Energy Concepts Model 50200B schematic
http://groups.google.com/group/sci.electronics.repair/t/cbe08c9b07d09002?hl=en
==============================================================================
== 1 of 1 ==
Date: Sat, Dec 7 2013 5:25 pm
From: amdx
Hi all,
I'm looking for calibration data for the Energy Concepts Model 50200B
and Model 20500. I mostly want to know what pot adjusts what. A complete
schematic would be nice.
Similar to these:
http://www.ebay.com/itm/Energy-Concepts-Digital-Solid-State-Power-Supply-Model-20500A-/110896837403?pt=LH_DefaultDomain_0&hash=item19d1f7731b
http://www.ebay.com/itm/ECI-Energy-Concepts-Inc-Model-50200-Digital-Multimeter-/271217912538?pt=LH_DefaultDomain_0&hash=item3f25d8eada
Thanks, Mikek
==============================================================================
TOPIC: transmit wirelessly from laptop to LCD TV??
http://groups.google.com/group/sci.electronics.repair/t/e6ae6a4f928b739f?hl=en
==============================================================================
== 1 of 4 ==
Date: Sat, Dec 7 2013 6:51 pm
From: Roger Blake
On 2013-12-07, Sammy Abernathy <sammy455091@yahoo.com> wrote:
> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
> a cheap way I can do this wirelessly and, if so, how?
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7624371&CatId=384
--
-----------------------------------------------------------------------------
Roger Blake (Change "invalid" to "com" for email. Google Groups killfiled.)
The NSA by its actions has shredded the 4th Amendment of the Constitution
and has essentially declared war on the American people. Put the NSA leaders
on trial for treason, and upon being found guilty, publicly execute them to
send a strong message. God bless Ed Snowden! Death to NSA thugs!
-----------------------------------------------------------------------------
== 2 of 4 ==
Date: Sun, Dec 8 2013 9:19 am
From: dave
On 12/07/2013 06:51 PM, Roger Blake wrote:
> On 2013-12-07, Sammy Abernathy <sammy455091@yahoo.com> wrote:
>> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
>> a cheap way I can do this wirelessly and, if so, how?
>
> http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7624371&CatId=384
>
Do you have Blutooth [sic] on both devices? Does the TV have a USB
input? You can get Blootooth dongles,
== 3 of 4 ==
Date: Sun, Dec 8 2013 11:40 am
From: mike
On 12/8/2013 9:19 AM, dave wrote:
> On 12/07/2013 06:51 PM, Roger Blake wrote:
>> On 2013-12-07, Sammy Abernathy <sammy455091@yahoo.com> wrote:
>>> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
>>> a cheap way I can do this wirelessly and, if so, how?
>>
>> http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7624371&CatId=384
>>
>>
>
> Do you have Blutooth [sic] on both devices? Does the TV have a USB
> input? You can get Blootooth dongles,
I have two older technology devices like this.
Great for watching a movie.
Reading text is impossible.
Imagine a picture with way too much jpg compression.
I expect current generation is better...just hard to
tell without seeing one in action.
Cheapest may not be the best metric.
Suggest you get a demo before spending a lot of money.
At lest get advice from someone who actually uses the
EXACT model you're contemplating.
== 4 of 4 ==
Date: Sun, Dec 8 2013 1:12 pm
From: Adrian C
On 07/12/2013 13:59, Sammy Abernathy wrote:
> I want to be able to see my laptop's screen on my 46" LCD TV. Is there
> a cheap way I can do this wirelessly and, if so, how?
Connect a video camera to the TV, focus and point it at the laptop
screen. There you go! Wireless :p
If you just want to watch video files you have stored on the laptop, a
network connected media player would be a solution to access the laptop
drive via WiFi. Cheap, you might have one already built into your TV if
it advertises itself as "Smart" or DNLA, or similar built into connected
Blueray or PVR equipment.
There are also software methods about (e.g VLC) to turn a computer
display into a video stream, that may also be rendered by such a media
player. Won't be the best in responsiveness as there will be a delay for
encoding the stream - so useless for gaming.
And then there's wireless HDMI....
--
Adrian C
==============================================================================
TOPIC: What's it called ... ?
http://groups.google.com/group/sci.electronics.repair/t/ecc022623ecb3497?hl=en
==============================================================================
== 1 of 1 ==
Date: Sun, Dec 8 2013 3:27 pm
From: chuck
On Mon, 2 Dec 2013 12:09:14 -0000, "Arfa Daily"
<arfa.daily@ntlworld.com> wrote:
>
>
>"JW" <none@dev.null> wrote in message
>news:reqo995bcf5p9sg37rcr2rkqn0nce51akr@4ax.com...
>> On Mon, 02 Dec 2013 06:03:50 -0500 JW <none@dev.null> wrote in Message id:
>> <m7qo99hiskcsmgr2679qjq49tno4465av1@4ax.com>:
>>
>>>On Mon, 2 Dec 2013 10:01:10 -0000 "Arfa Daily" <arfa.daily@ntlworld.com>
>>>wrote in Message id: <68Zmu.992$8z2.404@fx18.am4>:
>>>
>>>>Anyone know the name or catalogue description of that flat ribbon cable,
>>>>usually grey but sometimes black, that has a sort of 'web' between the
>>>>conductors, and is tinned when you strip it ? Each individual wire is
>>>>probably about one wire-width distant from its neighbours, so a piece say
>>>>8
>>>>conductors wide would be about the same width as a 'traditional' ribbon
>>>>of
>>>>16 conductors. It's used to interconnect boards typically - think HK
>>>>Actor
>>>>or various Fender combos that have the preamp tubes on separate sub
>>>>boards.
>>>>Also used with those dreadful snatch connectors where the contacts grip
>>>>the
>>>>soldered wire surface so hard that you always finish up with the tinned
>>>>tails bending, which then makes them a bitch to get back into the
>>>>connector.
>>>>
>>>>Anyone ?
>>>>
>>>>Arfa
>>>
>>>Possibly?
>>>http://www.digikey.com/product-detail/en/3365%2F06%20300SF/MC06G-300-ND/1832096
>>
>> Or better yet
>> http://www.digikey.com/product-detail/en/8125%2F04%20100/ML04G-100-ND/1107830
>>
>
>That looks pretty much like it. Looks like it's made by 3M. I'll do some
>more hunting based on that. Thanks for your input
>
>Arfa
It is made by 3M. We used to get it from Mouser or Digikey to repair
Sony BetaCam decks. Some operators would constantly move the control
panel up and down breaking the ribbon cable link. Chuck
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