sci.electronics.repair@googlegroups.com

Today's topics:

* Best solder free electrical connection - 9 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/11e5e6461418f740?hl=en
* Technics SA-R210 Receiver - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/895a543c71714c42?hl=en
* Technics SA-310 Intermittent Weak Left Channel - 3 messages, 2 authors
http://groups.google.com/group/sci.electronics.repair/t/24c0d76fe3922429?hl=en
* Semi-conductor Question - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/bc3822e35eab24b0?hl=en
* See Hot Sexy Star Angelina Jolie Nude Bathing Videos In All Angles; - 1
messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/c5a7a1376a50785f?hl=en
* Why we have Gravity - 2 messages, 2 authors
http://groups.google.com/group/sci.electronics.repair/t/004d04dfe74c9553?hl=en

==============================================================================
TOPIC: Best solder free electrical connection
http://groups.google.com/group/sci.electronics.repair/t/11e5e6461418f740?hl=en
==============================================================================

== 1 of 9 ==
Date: Sat, Aug 21 2010 2:26 pm
From: clare@snyder.on.ca

On Sat, 21 Aug 2010 14:46:34 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:

>
>Dave wrote:
>>
>> On 21/08/2010 03:59, Michael A. Terrell wrote:
>> >
>> > geoff wrote:
>>
>> > That's a very good example of why most people with brains left Europe
>> > for 'The new World'.
>>
>> So how come Britain made a better nuclear bomb than the New World? And
>> the New World wanted as much detail of our superior technology as they
>> could get?
>
>
> What superior technology? Lucas?
No "superior technology" has come out of GB since about 1950. - and
that may be stretchng it. There have been a few "good ideas" since

== 2 of 9 ==
Date: Sat, Aug 21 2010 3:01 pm
From: The Daring Dufas

On 8/21/2010 4:23 PM, ><(((°> wrote:
> On Sat, 21 Aug 2010 20:46:57 +0100, The Daring Dufas
> <the-daring-dufas@peckerhead.net> wrote:
>
>> On 8/21/2010 12:04 PM, Bob Eager wrote:
>>> On Sat, 21 Aug 2010 17:50:31 +0100, Dave wrote:
>>>
>>>> On 21/08/2010 03:59, Michael A. Terrell wrote:
>>>>>
>>>>> geoff wrote:
>>>>
>>>>> That's a very good example of why most people with brains left
>>>>> Europe
>>>>> for 'The new World'.
>>>>
>>>> So how come Britain made a better nuclear bomb than the New World? And
>>>> the New World wanted as much detail of our superior technology as they
>>>> could get?
>>>
>>> The promblem is that the Septics believe their own war films...for
>>> example, 'U-571'.
>>>
>>
>> That's odd, I know it's a work of fiction and not a documentary.
>> Even as a small child, I knew that Superman was not a real person.
>> Perhaps some people believe everything they read or see in movies
>> and TV shows. I have found that many Europeans get their stereotypical
>> opinion of the Southeast U.S. from the media and when they visit,
>> are surprised that there is no constant banjo music and a Negro
>> hanging from every other tree.
>>
>> TDD
>
> Indeed, no constant banjo music or Negro's hanging from trees.
>
> Just lots of extremely large people and restaurants that all think you
> haven't eaten for months.
> I guess the trees couldn't withstand the weight, so the Negro's just
> dropped to the ground.

Well, there is a lot of press about obesity in the South. There are
lots of big old boys but they can usually pick up a car engine without
breaking a sweat.

TDD

== 3 of 9 ==
Date: Sat, Aug 21 2010 3:24 pm
From: ><(((°>

On Sat, 21 Aug 2010 22:26:53 +0100, <clare@snyder.on.ca> wrote:

> On Sat, 21 Aug 2010 14:46:34 -0400, "Michael A. Terrell"
> <mike.terrell@earthlink.net> wrote:
>
>>
>> Dave wrote:
>>>
>>> On 21/08/2010 03:59, Michael A. Terrell wrote:
>>> >
>>> > geoff wrote:
>>>
>>> > That's a very good example of why most people with brains left
>>> Europe
>>> > for 'The new World'.
>>>
>>> So how come Britain made a better nuclear bomb than the New World? And
>>> the New World wanted as much detail of our superior technology as they
>>> could get?
>>
>>
>> What superior technology? Lucas?
> No "superior technology" has come out of GB since about 1950. - and
> that may be stretchng it. There have been a few "good ideas" since

I might be wrong but I thought Concorde started flying after 1950.
Though then again the Septics didn't like the noise, or was it a classic
case of "Not Invented Here" syndrome?

== 4 of 9 ==
Date: Sat, Aug 21 2010 6:01 pm
From: "Michael A. Terrell"

"Steve S (another one)" wrote:
>
> "Michael A. Terrell" <mike.terrell@earthlink.net> wrote in message
> news:1oOdnTLum4aEgu3RnZ2dnUVZ_jOdnZ2d@earthlink.com...
> >
> > Dave wrote:
> >>
> >> On 21/08/2010 03:59, Michael A. Terrell wrote:
> >> >
> >> > geoff wrote:
> >>
> >> > That's a very good example of why most people with brains left
> >> > Europe
> >> > for 'The new World'.
> >>
> >> So how come Britain made a better nuclear bomb than the New World? And
> >> the New World wanted as much detail of our superior technology as they
> >> could get?
> >
> >
> > What superior technology? Lucas?
>
> A giant US engineering company, TRW, put its best brains to work to develop
> a successful electric power steering system. They spent a long time and many
> millions of dollars. In the end they had to go out and buy the technology
> from a little British outfit. Guess who that was? It's now the world most
> successful electric power steering system.
>
> Now who the hell was it....
>
> Oh, yes. Lucas.

I've never seen an electric power steering system, and never want to
touch anything made by Lucass.

== 5 of 9 ==
Date: Sat, Aug 21 2010 6:03 pm
From: "Michael A. Terrell"

The Daring Dufas wrote:
>
> On 8/21/2010 2:01 PM, Steve S (another one) wrote:
> > "Michael A. Terrell"<mike.terrell@earthlink.net> wrote in message
> > news:1oOdnTLum4aEgu3RnZ2dnUVZ_jOdnZ2d@earthlink.com...
> >>
> >> Dave wrote:
> >>>
> >>> On 21/08/2010 03:59, Michael A. Terrell wrote:
> >>>>
> >>>> geoff wrote:
> >>>
> >>>> That's a very good example of why most people with brains left
> >>>> Europe
> >>>> for 'The new World'.
> >>>
> >>> So how come Britain made a better nuclear bomb than the New World? And
> >>> the New World wanted as much detail of our superior technology as they
> >>> could get?
> >>
> >>
> >> What superior technology? Lucas?
> >
> > A giant US engineering company, TRW, put its best brains to work to develop
> > a successful electric power steering system. They spent a long time and many
> > millions of dollars. In the end they had to go out and buy the technology
> > from a little British outfit. Guess who that was? It's now the world most
> > successful electric power steering system.
> >
> > Now who the hell was it....
> >
> > Oh, yes. Lucas.
> >
>
> The US military also purchased the rights to build the Harrier Jump Jet.
> I think there has been a lot of technology going in both directions. So
> be fair about it, The UK is a great place.

Is that the junk the stuck the Marines with? The politics was that
it was cheaper to buy a design, because the Marines wouldn't need many.

== 6 of 9 ==
Date: Sat, Aug 21 2010 6:04 pm
From: "Michael A. Terrell"

The Daring Dufas wrote:
>
> On 8/21/2010 1:46 PM, Michael A. Terrell wrote:
> >
> > Dave wrote:
> >>
> >> On 21/08/2010 03:59, Michael A. Terrell wrote:
> >>>
> >>> geoff wrote:
> >>
> >>> That's a very good example of why most people with brains left Europe
> >>> for 'The new World'.
> >>
> >> So how come Britain made a better nuclear bomb than the New World? And
> >> the New World wanted as much detail of our superior technology as they
> >> could get?
> >
> >
> > What superior technology? Lucas?
>
> I thought Lucusitis was a disease cause by the use of Lucas products?
> Is there not an evil fellow named Lucaser, Prince of Darkness? 8-)

And it has infect the minds of many Europeans. So much so that they
no longer expect quality from anything. :(

== 7 of 9 ==
Date: Sat, Aug 21 2010 6:05 pm
From: "Michael A. Terrell"

tm wrote:
>
> "The Daring Dufas" <the-daring-dufas@peckerhead.net> wrote in message
> news:i4pau7$9kl$1@news.eternal-september.org...
> > On 8/21/2010 1:46 PM, Michael A. Terrell wrote:
> >>
> >> Dave wrote:
> >>>
> >>> On 21/08/2010 03:59, Michael A. Terrell wrote:
> >>>>
> >>>> geoff wrote:
> >>>
> >>>> That's a very good example of why most people with brains left
> >>>> Europe
> >>>> for 'The new World'.
> >>>
> >>> So how come Britain made a better nuclear bomb than the New World? And
> >>> the New World wanted as much detail of our superior technology as they
> >>> could get?
> >>
> >>
> >> What superior technology? Lucas?
> >
> > I thought Lucusitis was a disease cause by the use of Lucas products?
> > Is there not an evil fellow named Lucaser, Prince of Darkness? 8-)
> >
> > TDD
>
> Everything Lucas made sucked except their vacuum cleaners.

Not even the smoke from their motors. :(

== 8 of 9 ==
Date: Sat, Aug 21 2010 6:08 pm
From: "Michael A. Terrell"

><(((°> wrote:
>
> On Sat, 21 Aug 2010 22:26:53 +0100, <clare@snyder.on.ca> wrote:
>
> > On Sat, 21 Aug 2010 14:46:34 -0400, "Michael A. Terrell"
> > <mike.terrell@earthlink.net> wrote:
> >
> >>
> >> Dave wrote:
> >>>
> >>> On 21/08/2010 03:59, Michael A. Terrell wrote:
> >>> >
> >>> > geoff wrote:
> >>>
> >>> > That's a very good example of why most people with brains left
> >>> Europe
> >>> > for 'The new World'.
> >>>
> >>> So how come Britain made a better nuclear bomb than the New World? And
> >>> the New World wanted as much detail of our superior technology as they
> >>> could get?
> >>
> >>
> >> What superior technology? Lucas?
> > No "superior technology" has come out of GB since about 1950. - and
> > that may be stretchng it. There have been a few "good ideas" since
>
> I might be wrong but I thought Concorde started flying after 1950.
> Though then again the Septics didn't like the noise, or was it a classic
> case of "Not Invented Here" syndrome?

It was a fast plane, but a poor design. They spent wads of money to
build and maintain them, then junked the entire fleet. It was noisy and
very fuel inefficient. That forced the fares so high that they weren't
able to compete with better planes from multiple countries.

== 9 of 9 ==
Date: Sat, Aug 21 2010 6:09 pm
From: "Michael A. Terrell"

clare@snyder.on.ca wrote:
>
> On Sat, 21 Aug 2010 14:46:34 -0400, "Michael A. Terrell"
> <mike.terrell@earthlink.net> wrote:
>
> >
> >Dave wrote:
> >>
> >> On 21/08/2010 03:59, Michael A. Terrell wrote:
> >> >
> >> > geoff wrote:
> >>
> >> > That's a very good example of why most people with brains left Europe
> >> > for 'The new World'.
> >>
> >> So how come Britain made a better nuclear bomb than the New World? And
> >> the New World wanted as much detail of our superior technology as they
> >> could get?
> >
> >
> > What superior technology? Lucas?
> No "superior technology" has come out of GB since about 1950. - and
> that may be stretchng it. There have been a few "good ideas" since.

OTOH, I have met some nice women from England who got fed up and left
their home country. I love their accents, too. :)

==============================================================================
TOPIC: Technics SA-R210 Receiver
http://groups.google.com/group/sci.electronics.repair/t/895a543c71714c42?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Aug 21 2010 3:09 pm
From: Puddin' Man

On Sat, 21 Aug 2010 02:49:17 +0100, "Arfa Daily" <arfa.daily@ntlworld.com> wrote:

>Reworking cracked joints on a practical level involves no more than applying
>a nice hot iron to the side of the joint, then when the existing solder
>melts, running a small amount - no more than 2 or 3 mm - of new flux-cored
>solder into the molten joint. Hold the iron on the joint for a further 1 to
>2 seconds, then slide it quickly away. This should leave a nice shiny joint
>(assuming this is standard leaded solder) with no signs of a crack,
>dullness, or crystalline appearance. If you want to be really pedantic about
>the job, you can remove the existing solder first, before making a new joint
>with fresh solder, but in order to do that, you would need at the very least
>some solder wick, and if you lack the soldering experience to be able to go
>for this repair without checking on the best way to go about it first, I
>guess that it's going to be unlikely that you have any, or the experience to
>use it to clean the joint.

Much thanks, but I might've gotten ahead of myself a bit ...

I have 2 SA-R210's, both with problems. I put one in the shop about 10
years ago, they said they resoldered <this and that>, so I figgered
the problem with the other one would be cracked solder on components
attached to heat-sink, per suggestions in this thread.

I have it apart on a work-bench, and can look closely. When I carefully
probe solder points on components attached to heat-sink, I can't find
any obvious cracks. On the Q701, 702, 705 units, there is some funny
looking copper colored crud (flux?) around all solder points. The
Q705 E connector appears to be soldered-to (co-conductive with) one end of a
R704 resistor(?), but it's been that way for years. This is on a unit that I
bought on Ebay around 5 years ago.

If I have a "thermally intermittent power regulator" (plastic near-square
unit maybe 1" square, marked "Stereo Power Amp 3102 A"), I guess I'm out of
luck?

Anything else to look for? Other solder points on the bottom of the main
board look clean-as-a-whistle. Other components to examine/test??

Thanks,
P

"Law Without Equity Is No Law At All. It Is A Form Of Jungle Rule."

==============================================================================
TOPIC: Technics SA-310 Intermittent Weak Left Channel
http://groups.google.com/group/sci.electronics.repair/t/24c0d76fe3922429?hl=en
==============================================================================

== 1 of 3 ==
Date: Sat, Aug 21 2010 3:26 pm
From: "Arfa Daily"

"Meat Plow" <mhywatt@yahoo.com> wrote in message
news:pan.2010.08.21.18.32.17@hahahahahahahah.nutz.I.am...
> On Sat, 21 Aug 2010 02:55:20 +0100, Arfa Daily wrote:
>
>> "Meat Plow" <mhywatt@yahoo.com> wrote in message
>> news:pan.2010.08.20.14.18.33@hahahahahahahah.nutz.I.am...
>>> On Fri, 20 Aug 2010 02:33:32 +0100, Arfa Daily wrote:
>>>
>>>> "William R. Walsh"
>>>> <newsgroups1@idontwantjunqueemail.walshcomptech.com> wrote in message
>>>> news:bIadnVM7xZ5rHPHRnZ2dnUVZ_vidnZ2d@mchsi.com...
>>>>> Hi!
>>>>>
>>>>>> Do you have any kind of iPod Touch or iPhone?
>>>>>
>>>>> Yes, I have a first generation iPod Touch. I should have thought of
>>>>> that..."there's an app for that" too I guess.
>>>>>
>>>>> Out of the applications you have, is there any one that stands out
>>>>> above the
>>>>> rest, whether free or not?
>>>>>
>>>>> William
>>>>>
>>>>>
>>>>>
>>>> I have two on there. One is called "FreqGen" and the other is called
>>>> "Oscillatr Free" actually spelt like that. Both are much the same in
>>>> functionality, but I think that FreqGen is a bit nicer to use.
>>>>
>>>> Arfa
>>>
>>> I still use my old Leader from the 80s. It's coupled to my freq counter
>>> if I need to be precise.
>>>
>>>
>>>
>>
>> For most bench work, I use a Ferrograph Pro Recorder Test Set that has a
>> rather nice frequency and amplitude stabilised multi decade oscillator
>> in it, but I also have an old and cherished Marconi Instruments "R-C
>> Oscillator" which uses tubes as I recall, although it's been a long time
>> since I've been inside it. Looks like it probably dates from the 60s.
>>
>> Arfa
>
> Since I don't have my I Touch yet I recorded some test tones on my Sharp
> MD, transferred to PC and uploaded to my video IPod :) How's that for
> ingenuity?
>
>

Nothing more or less than I would have expected from you, Meat ! It's
lateral thinking like this that sets us old timers apart from today's 'black
box' kids ... d;~}

Arfa

== 2 of 3 ==
Date: Sat, Aug 21 2010 3:39 pm
From: "Arfa Daily"

"Arfa Daily" <arfa.daily@ntlworld.com> wrote in message
news:koYbo.106547$KP3.4319@hurricane...
>
>
> "Meat Plow" <mhywatt@yahoo.com> wrote in message
> news:pan.2010.08.21.18.32.17@hahahahahahahah.nutz.I.am...
>> On Sat, 21 Aug 2010 02:55:20 +0100, Arfa Daily wrote:
>>
>>> "Meat Plow" <mhywatt@yahoo.com> wrote in message
>>> news:pan.2010.08.20.14.18.33@hahahahahahahah.nutz.I.am...
>>>> On Fri, 20 Aug 2010 02:33:32 +0100, Arfa Daily wrote:
>>>>
>>>>> "William R. Walsh"
>>>>> <newsgroups1@idontwantjunqueemail.walshcomptech.com> wrote in message
>>>>> news:bIadnVM7xZ5rHPHRnZ2dnUVZ_vidnZ2d@mchsi.com...
>>>>>> Hi!
>>>>>>
>>>>>>> Do you have any kind of iPod Touch or iPhone?
>>>>>>
>>>>>> Yes, I have a first generation iPod Touch. I should have thought of
>>>>>> that..."there's an app for that" too I guess.
>>>>>>
>>>>>> Out of the applications you have, is there any one that stands out
>>>>>> above the
>>>>>> rest, whether free or not?
>>>>>>
>>>>>> William
>>>>>>
>>>>>>
>>>>>>
>>>>> I have two on there. One is called "FreqGen" and the other is called
>>>>> "Oscillatr Free" actually spelt like that. Both are much the same in
>>>>> functionality, but I think that FreqGen is a bit nicer to use.
>>>>>
>>>>> Arfa
>>>>
>>>> I still use my old Leader from the 80s. It's coupled to my freq counter
>>>> if I need to be precise.
>>>>
>>>>
>>>>
>>>
>>> For most bench work, I use a Ferrograph Pro Recorder Test Set that has a
>>> rather nice frequency and amplitude stabilised multi decade oscillator
>>> in it, but I also have an old and cherished Marconi Instruments "R-C
>>> Oscillator" which uses tubes as I recall, although it's been a long time
>>> since I've been inside it. Looks like it probably dates from the 60s.
>>>
>>> Arfa
>>
>> Since I don't have my I Touch yet I recorded some test tones on my Sharp
>> MD, transferred to PC and uploaded to my video IPod :) How's that for
>> ingenuity?
>>
>>
>
>
> Nothing more or less than I would have expected from you, Meat ! It's
> lateral thinking like this that sets us old timers apart from today's
> 'black box' kids ... d;~}
>
> Arfa

Hey Meat, just saw your response to the 'car windshield fitter story' whilst
I was cruisin' on uk.rec.cars.maintenance. Which of the many cross-posted
groups were you responding from ? Didn't see any in the list that looked
like the sort of place I'd find you lurking ... !

Just as a matter of interest, I'm sure I remember having a windshield
replaced in one of our cars a few years back, and the fitter actually had to
take the vehicle away to a facility to do the job, as it was an aerodynamic
screen glued in rather than being just 'traditionally' fitted in a rubber
seal. I feel that I can recall the fitter saying that the replacement glue
had to be 'baked' under IR lamps for something like 2 hours, and the vehicle
could not, as a result of this, be moved for at least that amount of time.

Arfa

== 3 of 3 ==
Date: Sat, Aug 21 2010 4:43 pm
From: Meat Plow

On Sat, 21 Aug 2010 23:39:25 +0100, Arfa Daily wrote:

> "Arfa Daily" <arfa.daily@ntlworld.com> wrote in message
> news:koYbo.106547$KP3.4319@hurricane...
>>
>>
>> "Meat Plow" <mhywatt@yahoo.com> wrote in message
>> news:pan.2010.08.21.18.32.17@hahahahahahahah.nutz.I.am...
>>> On Sat, 21 Aug 2010 02:55:20 +0100, Arfa Daily wrote:
>>>
>>>> "Meat Plow" <mhywatt@yahoo.com> wrote in message
>>>> news:pan.2010.08.20.14.18.33@hahahahahahahah.nutz.I.am...
>>>>> On Fri, 20 Aug 2010 02:33:32 +0100, Arfa Daily wrote:
>>>>>
>>>>>> "William R. Walsh"
>>>>>> <newsgroups1@idontwantjunqueemail.walshcomptech.com> wrote in
>>>>>> message news:bIadnVM7xZ5rHPHRnZ2dnUVZ_vidnZ2d@mchsi.com...
>>>>>>> Hi!
>>>>>>>
>>>>>>>> Do you have any kind of iPod Touch or iPhone?
>>>>>>>
>>>>>>> Yes, I have a first generation iPod Touch. I should have thought
>>>>>>> of that..."there's an app for that" too I guess.
>>>>>>>
>>>>>>> Out of the applications you have, is there any one that stands out
>>>>>>> above the
>>>>>>> rest, whether free or not?
>>>>>>>
>>>>>>> William
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> I have two on there. One is called "FreqGen" and the other is
>>>>>> called "Oscillatr Free" actually spelt like that. Both are much the
>>>>>> same in functionality, but I think that FreqGen is a bit nicer to
>>>>>> use.
>>>>>>
>>>>>> Arfa
>>>>>
>>>>> I still use my old Leader from the 80s. It's coupled to my freq
>>>>> counter if I need to be precise.
>>>>>
>>>>>
>>>>>
>>>>>
>>>> For most bench work, I use a Ferrograph Pro Recorder Test Set that
>>>> has a rather nice frequency and amplitude stabilised multi decade
>>>> oscillator in it, but I also have an old and cherished Marconi
>>>> Instruments "R-C Oscillator" which uses tubes as I recall, although
>>>> it's been a long time since I've been inside it. Looks like it
>>>> probably dates from the 60s.
>>>>
>>>> Arfa
>>>
>>> Since I don't have my I Touch yet I recorded some test tones on my
>>> Sharp MD, transferred to PC and uploaded to my video IPod :) How's
>>> that for ingenuity?
>>>
>>>
>>>
>>
>> Nothing more or less than I would have expected from you, Meat ! It's
>> lateral thinking like this that sets us old timers apart from today's
>> 'black box' kids ... d;~}
>>
>> Arfa
>
> Hey Meat, just saw your response to the 'car windshield fitter story'
> whilst I was cruisin' on uk.rec.cars.maintenance. Which of the many
> cross-posted groups were you responding from ? Didn't see any in the
> list that looked like the sort of place I'd find you lurking ... !

I think that 24hoursupport.helpdesk was in the lineup.

> Just as a matter of interest, I'm sure I remember having a windshield
> replaced in one of our cars a few years back, and the fitter actually
> had to take the vehicle away to a facility to do the job, as it was an
> aerodynamic screen glued in rather than being just 'traditionally'
> fitted in a rubber seal. I feel that I can recall the fitter saying that
> the replacement glue had to be 'baked' under IR lamps for something like
> 2 hours, and the vehicle could not, as a result of this, be moved for at
> least that amount of time.
>
> Arfa

Mine was just glued in with black Silicone rubber. Hardest part was
scraping the old away. To remove, the molding came off in about a minute
or so, a wire was passed through the old glue and glass to cut the seal.
That took maybe 3 minutes. The glass was fitted with a couple suction
cups and lifted off. It took maybe 10 minutes to scrape th remaining
silicone away and the 5 to run a bead of new silicone plus some other
rubber thing I guess was an additional gasket. Then the new glass was
laid down, pressed in and molding reinstalled. I didn't put a stopwatch
on the guy but I'm sure it wasn't more than 15 minutes from start to
finish. And the new glass came from Pilkington over in your neck of the
woods. I guess they make most of the glass for the US industry because
my Chevy Trailblazer has Pilk glass in it.

--
Live Fast, Die Young and Leave a Pretty Corpse

==============================================================================
TOPIC: Semi-conductor Question
http://groups.google.com/group/sci.electronics.repair/t/bc3822e35eab24b0?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Aug 21 2010 7:16 pm
From: Bob Villa

On Aug 21, 11:45 am, "Wild_Bill" <wb_wildb...@XSPAMyahoo.com> wrote:
> I've seen 3-wire starters that were marked Solid State (triac, presumably),
> as replacement parts for current-type start relays, typically for
> refrigeration compressor motors (fractional HP).
>
> Places like Johnstone, or other suppliers for HVAC service folks should have
> numerous models to choose from.
> You may need to know a motor's specs, at least the LRA locked rotor amps
> rating, to be able to make an informed selection of starter devices.
>
> The following is a post from rec.crafts.metalworking..
>
> I bought a couple of used Dayton (1/3 HP) bench grinders recently, and found
> some
> Klixon current-type motor starter relays being used instead of centrifugal
> switches for switching between Start and Run windings in these small
> split-phase 120VAC induction motors.http://www.sensata.com/klixon/motor-protector-3cr.htm
>
> I mention these relays because they would be a suitable replacement for
> damaged mechanical components or switch contacts related to centrifugal
> switches.
>
> These relays are the types used with refrigeration and air conditioning
> compressors, and also completely suitable for other split-phase motors. They
> have a heavy duty winding that the motor current passes thru, not a separate
> coil like common relays.
> When the power is turned on, the relay is pulled in, to make contact to the
> Start winding.
> The starting amperage of the motor is initially high, but it drops as the
> rotor approaches Run speed, the relay drops out, connecting the line voltage
> to the Run winding.
>
> There are charts of different models of the SR start relays (in PDFs at the
> link above), but I didn't find any type of selector guide for choosing what
> the appropriate amp ratings would be for various HP ratings.
> The models of Klixon SRs I was looking at were applicable for motors up to
> 15A (3CR series), and the next larger series of SRs were for up to 25A, so
> these ratings would cover nearly all single phase split-phase motors
> (capacitor start or non-capacitor start) used in a home shop environment.
>
> One particular aspect of the SRs is that they are gravity-dependent, and
> therefore need to be installed with the proper end pointed up.
> Aside from that, they are highly reliable starting devices, rated for about
> 1 million cycles.
>
> The specific ratings used for a 1/3 HP bench grinder motor use an 11A
> pull-in (Start) spec and a 6A drop-out (Run) spec.
> Of course, larger motors would use higher rated specs for pull-in and
> drop-out currents, and the ratings vary in tenths-of-an-ampere (11.5A/6.3A,
> etc).
>
> --
> Cheers,
> WB
> .............
>
> "Bob Villa" <pheeh.z...@gmail.com> wrote in message
>
> news:e6651839-0b72-4722-9a06-4ca6557c386d@h19g2000yqb.googlegroups.com...
>
> > Many years ago (possibly 50) you could buy a module that would take
> > the place of a starting relay or centrifugal cut-out for an AC motor.
> > Where do you find them?  (I think I sent for one thru Popular Science
> > mag at the time)
> > Thanks

This was a totally solid state device...like a timed triac that cuts-
out after a half second.

==============================================================================
TOPIC: See Hot Sexy Star Angelina Jolie Nude Bathing Videos In All Angles;
http://groups.google.com/group/sci.electronics.repair/t/c5a7a1376a50785f?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Aug 21 2010 7:53 pm
From: sukanya

See Hot Sexy Star Angelina Jolie Nude Bathing Videos In All Angles At
http://geteasyvideos.tk

Due to high sex content, i have hidden the videos in an image.
in that website on Right side below search box click on image and
watch
videos in all angles.

==============================================================================
TOPIC: Why we have Gravity
http://groups.google.com/group/sci.electronics.repair/t/004d04dfe74c9553?hl=en
==============================================================================

== 1 of 2 ==
Date: Sat, Aug 21 2010 9:48 pm
From: David Nebenzahl

On 8/21/2010 2:02 PM > spake thus:

> Being a Newton myself I know exactly why we have gravity.
>
> It's because apples are meant to be eaten and when they come loose from
> apple trees something is needed to make them move to the ground rather
> than them being blown away in the wind.
> That in a nutshell, and straight from the horses mouth via my great great
> great granddad Issac and passed down though generations, is why we have
> gravity.
>
> If Einstein thought differently he was wrong.

What, you're saying that Einstein hated apples?

--
The fashion in killing has an insouciant, flirty style this spring,
with the flaunting of well-defined muscle, wrapped in flags.

- Comment from an article on Antiwar.com (http://antiwar.com)

== 2 of 2 ==
Date: Sun, Aug 22 2010 12:17 am
From: "Michael A. Terrell"

David Nebenzahl wrote:
>
> On 8/21/2010 2:02 PM > spake thus:
>
> > Being a Newton myself I know exactly why we have gravity.
> >
> > It's because apples are meant to be eaten and when they come loose from
> > apple trees something is needed to make them move to the ground rather
> > than them being blown away in the wind.
> > That in a nutshell, and straight from the horses mouth via my great great
> > great granddad Issac and passed down though generations, is why we have
> > gravity.
> >
> > If Einstein thought differently he was wrong.
>
> What, you're saying that Einstein hated apples?

Figs. ;-)

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