Digest for sci.electronics.repair@googlegroups.com - 25 updates in 8 topics

micky <NONONOmisc07@bigfoot.com>: Feb 25 02:27PM -0500

In sci.electronics.repair, on Fri, 24 Feb 2017 18:47:49 -0800 (PST),
 
>> That you didn't know what H20 or Redpocket are. I don't either but I
>> just feel ignorant.
 
>A Redpocket is something I thought I might find in a Redcoat..
 
Of course!
 
>> If you don't know what Saturday is, you're definitely old.
 
>Ah... reprieved (I think). If "Saturday" is still the sixth day of the week, I've got at least some time left!
 
I think it's only the sixth day of the week in France.
 
If you're using windows and you click on the time in the lower right
corner, a calendar comes up and Saturday is 7th.
micky <NONONOmisc07@bigfoot.com>: Feb 25 02:29PM -0500

In sci.electronics.repair, on Sat, 25 Feb 2017 14:27:56 -0500, micky
 
>>> If you don't know what Saturday is, you're definitely old.
 
>>Ah... reprieved (I think). If "Saturday" is still the sixth day of the week, I've got at least some time left!
 
>I think it's only the sixth day of the week in France.
 
Bad syntax on my part. I think only in France is it the sixth day of
the week.
micky <NONONOmisc07@bigfoot.com>: Feb 25 03:23PM -0500

In sci.electronics.repair, on Wed, 22 Feb 2017 07:14:05 +1100, Clifford
>> But they BOTH worked on the DASH JR. CLues?
 
>Most "Dual SIM" phones are like that. The 2nd SIM only works on 2G,
>only one SIM can connect to a modern network.
 
This doesn't refer to the question at hand, but I t hought my experience
over the last day would be worth posting (if not worth reading..
 
When the sim came in the mail it said that I shouldn't download data
until I get a data plan becuase it woudl be very expensive. I didnt'
get a data plan because.. could be wrong but I think I can get a much
better one when I get there.
 
So i was trying to turn off my data, but up until this morning, I'd
only found "turn off background data", not enough.
 
So yesterday and today I put in the new sim and tapped a couple things
settling on AT&T, at least I thought so, but when I got to the
notification line, a message went by that I have no ATT service!! And
instead of one white triangle (with the tall side at the right), I had
two triangles and they were both blank inside.
 
I went back and just for a test I made the new sim my main sim, and then
the message just said "no service", becuase it didn't know which service
the new sim was supposed to have.
 
So I made ATT the main sim again, by turning the second sim off with its
slide switch on the SIM page, and then I noticed Activities and calls
were set for ATT 012, SMS was set for ATT 01. bit cellular data was set
for the other sim!! So i set it to ATT, and I'll bet that covers all
the data. Then I went back to Settings/Data usage, where I
had tried to change it before, and it said "SIM off, to see the number,
first turn it on" Since I didn't want to turn on the new sim, I tapped
cancel and then it just returned to Settings.
 
So then I did turn on the second one, and I'm not getting a message
about no service... Well of course, because ATT is still working fine.
I have two triangles, one white and one empty. (Later I turned off the
second sim but I stil have two triangles.)
 
But I might be slowing something down or wasting battery to keep looking
for a signal for the second sim so I'll turn it off soon.
 
But the point was that the setting I wanted seems to be under SIM /
Activities / Cellular Data
 
BTW, for Cellular Data, I had to choose one, but for Calls and SMS,
there was a 3rd choice "Ask first". In my situation where one server
is in one country and the other in another, asking first doesn't make
sense, but some people have a need to split data and phone calls.
....
 
It turns out I might even be able to buy the plan I'm thinking of right
at the airport.
 
(But I can leave the data on ATT (where it won't work), and that will I
suspect turn it off for the other one until I can buy the data plan.)
 
The big problem is IMO a) that there are no printed directiosn for some
phones (and the ones for my phone cover nothing but the obvious) and b)
it's not clear in advance what one can tap on and what one can't. It's
not like web browers that one can set to underline and display in
another color clickable links.
 
 
micky <NONONOmisc07@bigfoot.com>: Feb 25 03:45PM -0500

In sci.electronics.repair, on Sat, 25 Feb 2017 14:29:59 -0500, micky
 
>>I think it's only the sixth day of the week in France.
 
>Bad syntax on my part. I think only in France is it the sixth day of
>the week.
 
Even for France, I'm only going by where it appears on printed
calendars. If you look those Week-at-a-Glance desk calendars with place
to write appointmentns, they separate the weekend into one box, so
there are 3 boxes on each page, but I've always thought they do that
because working people have most of their appointments and scheduled
tasks on workdays.
 
I looked into this a little, and afaict the Catholics don't say Sunday
is the 7th day, which would make Saturday the 6th. . They say it's the
Lord's Day.
 
I've been to France but don't remember seeing a calendar. But I've read
that it's been changed, something to do with the French Revolution or
maybe it was Napoleon.
 
http://www.webexhibits.org/calendars/calendar-french.html
The French Revolutionary Calendar (or Republican Calendar) was
officially adopted in France on October 24, 1793 and abolished on 1
January 1806 by Emperor Napoleon I. It was used again briefly during
under the Paris Commune in 1871. The French also established a new
clock, in which the day was divided in ten hours of a hundred minutes of
a hundred seconds - exactly 100,000 seconds per day.
.....
The year was not divided into weeks, instead each month was divided into
three décades of 10 days, of which the final day was a day of rest. This
was an attempt to de-Christianize the calendar, but it was an unpopular
move, because now there were 9 work days between each day of rest,
whereas the Gregorian Calendar had only 6 work days between each
Sunday***. The ten days of each décade were called, respectively,
Primidi, Duodi, Tridi, Quartidi, Quintidi, Sextidi, Septidi, Octidi,
Nonidi, Decadi.
 
 
https://en.wikipedia.org/wiki/French_Republican_Calendar: The Concordat
of 1801 re-established the Roman Catholic Church as an official
institution in France (though not as a state religion) with effect from
Easter Sunday, 18 April 1802, restoring the names of the days of the
week to the ones they had in the Gregorian Calendar, while keeping the
rest of the Republican Calendar, and fixing Sunday as the official day
of rest and religious celebration.[4]
 
 
(This article is pretty long and I haven't read more than a little bit.
It looks combative and therefore I'd take anything it says with a big
grain of salt, and that there's another side to any ideological or even
factual statement, but otoh, it's a comprehensive story so:
https://www.worldslastchance.com/ecourses/lessons/changing-weeks-hiding-sabbath-ecourse/18/french-republican-calendar.html
)
 
>>If you're using windows and you click on the time in the lower right
>>corner, a calendar comes up and Saturday is 7th.
 
***This reminds me of the way peasants are still ridiculed for
complaining, rioting in some places IIrc, when the calendar was changed
from Julian to Gregorian. The ridicule is based on the idea that they
thought 10 days was being stolen from their lives, and that would be
stupid, but their objection actually was that they were expected to pay
a full month's rent to their landlords, even though that month was only
20 days long. (Also their health club membership was only 20 days
that month.)
Clifford Heath <no.spam@please.net>: Feb 26 06:20PM +1100

On 26/02/17 07:45, micky wrote:
> I looked into this a little, and afaict the Catholics don't say Sunday
> is the 7th day, which would make Saturday the 6th. . They say it's the
> Lord's Day.
 
Some IT systems standards count Sunday as the first day, some Monday.
Some number the first day as zero, some as one. Anything that cares
to number the days of the week needs to allow this to be configured
to local customs.
 
> I've been to France but don't remember seeing a calendar. But I've read
> that it's been changed, something to do with the French Revolution or
> maybe it was Napoleon.
 
I think calendar reform is a good idea, but won't ever happen.
 
In my ideal calendar, each year has ten months, one week, and
a day (or two for a leap year). A month is seven weeks, and a
week is five days - still with a 2-day weekend. That would
reduce annual working days to 84% of the current 260 (ex holidays),
down to 213 - not really a big drop. The end-of-year week-and-a-day
would be an annual holiday which would include any leap day.
So every month would be 35 days long.
 
Much more regular - better than the French system I think.
And we'd have no more nonsense about the Sabbath :)
 
Clifford Heath.
Andy Burns <usenet@andyburns.uk>: Feb 26 08:14AM

Clifford Heath wrote:
 
> Anything that cares to number the days of the week needs to allow
> this to be configured to local customs.
 
And preferably to allow personal override from local customs.
Jonas Schneider <Jonas123Schneider@arcor.de>: Feb 26 12:32AM

Today I tried to hook up a Rocket M2 as a super powerful (miles) Wi-Fi
extension for my home router, when the POE light went out whenever I
plugged in the power cable. Huh?
 
Turns out it's a crossover cable, mixed up with the bunch of my other spare
Ethernet cables.
 
Do we even need crossover cables anymore?
Or did they go the way of 8-track players?
FrozenNorth <frozennorth.ask@gmail.com>: Feb 25 07:45PM -0500

On 2017-02-25 7:32 PM, Jonas Schneider wrote:
> Ethernet cables.
 
> Do we even need crossover cables anymore?
> Or did they go the way of 8-track players?
 
Most devices do not need cross over cables anymore, but there may still
be the odd one floating around out there.
 
--
Froz....
whit3rd <whit3rd@gmail.com>: Feb 25 07:19PM -0800

On Saturday, February 25, 2017 at 4:32:53 PM UTC-8, Jonas Schneider wrote:
> Ethernet cables.
 
> Do we even need crossover cables anymore?
> Or did they go the way of 8-track players?
 
You HAVE one, which is apparently more than you currently require.
What you want now, is a non-removable label that identifies it as a crossover
cable.
 
There's a fair amount of older hardware that's still useful, and that cable
confers a kind of compatibility you will certainly need, soon after you discard it.
Andy Burns <usenet@andyburns.uk>: Feb 26 08:12AM

Jonas Schneider wrote:
 
> Do we even need crossover cables anymore?
 
Technically only* gigabit devices are required to support auto MDI/MDI-X
switching, but in practice most 10/100 devices have also supported it
for many years.
 
[*] not sure about 10Gbe and faster, I've only used it over fibre, and
with a switch between devices, but I would expect it to be auto over
copper too.
oldschool@tubes.com: Feb 25 08:25PM -0600

I ordered a small amplifier board on ebay. It's just a PCB with
components, making a ready to go low powered audio amplifier, complete
with a volume control.
 
It has three screw terminal blocks to attach the Power, Input and
Output. It also has a 1/8" jack.
 
But here is the problem. Those screw blocks are labelled in Chinese.
Using the actual chinese alphabet. If it was another language, I could
convert the words online, but I cant enter chinese characters.
 
Fortunately, the power one says 12v with a + on one side, so I know that
is the 12v source. But I hav no clue which of the other two are input or
output, nor what that 1/8" plug is for.
 
I bought this from a US seller. You would think he would include a piece
of paper showing what is what. The entire amp is mostly just one IC
chip. Both the input and output go right to this chip, and there are
parts in the way of the chip to try to read the chip numbers. (which
likely would not match anything anyhow). [not to mention I cant see well
enough to read chips anymore].
 
What is most weird, there is a LED on the board which says "LED" and the
caps have numbers next to them (in english).
 
I plan to contact the seller to ask for an email containing the
schematic or a photo showing what is what.....
 
This is the first time I have ever run across a PCB labeled in
chinese...
analogdial <analogdial@mail.com>: Feb 26 07:53AM

> schematic or a photo showing what is what.....
 
> This is the first time I have ever run across a PCB labeled in
> chinese...
 
Most of these Chinese kits don't have an instruction sheet. They are
the collection of parts from some construction article or something
like. that
 
Do an internet search for whatever identifiers you have. It might be as
simple as a circuit from the IC's data sheet. I've got a couple of
other these Chinese kits and there was alot of very complete information
on the web including youtube videos.
 
There might be pictures of the completed amp from the vendor's website.
 
The vendor might not have a clue as to what the parts in a bag are for.
Andy Burns <usenet@andyburns.uk>: Feb 26 07:59AM


> here is the problem. Those screw blocks are labelled in Chinese.
> Using the actual chinese alphabet.
 
Got a smartphone or tablet? Use a translation app that lets you point
the camera at things and overlays a translation in realtime.
R2D4 <r2d4@stwars.com>: Feb 26 12:16AM -0500

On 02/22/2017 11:27 AM, R2D4 wrote:
> isn't found for the above, I'd appreciate recommendations for a brand/
> model that will last. This definitely isn't like the blanket I had
> while growing up 25 years ago; that one lasted for 15 years with no issues.
 
 
Just to update that I gave up on trying to find the right electric
whatever that will work correctly and I am currently trying out down and
down alternative comforters. This also seems to be an area needing
study and it's not as simple as just picking out one without knowing
what you need beforehand. However, I'm very close to a reasonably
costing winner so my problems are almost solved.
oldschool@tubes.com: Feb 25 04:15PM -0600


>This any help? https://archive.org/details/HSM4952016
>Maybe try this forum: http://www.organforum.com/forums/
 
>Kenny
 
Thanks, but neigther of these links seem to have any schematic for my
model (Hammond model # 227214. Called an "Aurora Custom 1 (AV28)".
oldschool@tubes.com: Feb 25 04:20PM -0600


>Kenny
 
>http://www.terapeak.com/worth/hammond-aurora-custom-model-227222-227214-schematic-diagram-nos/371534107566/
 
I was already to cough up the $10 for this paper manual, when I clicked
on "BUY", it took me to an Ebay page that "does not exist". Probably
another useless ancient link to something that google dont seem to ever
remove. From what I've been seeing lately, google never removes outdated
links. I've been seeing around 35% of the links on google are obsolete
lately.
"Dave M" <dgminala@mediacombb.net>: Feb 25 05:48PM -0600

Have you tried to contact Hammond for service information? If not, send
them an email with all of the nameplate information and see if they can
help. http://hammondorganco.com/contact-us/service-department/?
Many manufacturers will provide service info free on models that have been
out of production for many years.
 
Cheers,
Dave M
 
 
 
 
oldschool@tubes.com: Feb 25 08:27PM -0600

On Sat, 25 Feb 2017 17:48:00 -0600, "Dave M" <dgminala@mediacombb.net>
wrote:
 
>out of production for many years.
 
>Cheers,
>Dave M
 
This is a good suggestion. I'll give it a try!
 
Thanks
 
----
 
frank <frank@invalid.net>: Feb 25 06:29PM

Hi all,
I'm trying to keep an old TV alive, it's an old 14CT2306/20S from Philips
and it's the only think that fits into a furniture space in my parent's
house, so that will not be replaced. I'm keeping it alive for 30+ years now.
The LOPT developed some leaks in the past years but they where on the external
side so I was always able to scratch the hole zones and put some epoxy that
cured the leak. Lately it developed a nasty leak to the internal core, so
it's time to find a replacement for it.
I ordered an HR-6098 LOPT on ebay based on diemen HR equivalence and when
it arrived, I noticed that it lacks pin 1.
On the diemen site, the HR-6098 indeed has pin 1, schematics and actual
chassis both agree that pin 1 is needed as horizontal signal going into
an LM339 comparator, so I think I can't put this transformer in place
of the original one.
The ebay seller just said that since it's stamped with the correct name,
it must be it and I'm just not able to install it correctly :)
Is there any chance that the seller is right or my only option is asking
for a refund via PayPal?
What could be going on here? I wouldn't believe it's viable to make
fake LOPT anyway. Maybe a mis-labeled unit that was so similar to the
rigth one?
 
Thanks
Frank
ohger1s@gmail.com: Feb 25 01:46PM -0800

On Saturday, February 25, 2017 at 1:31:35 PM UTC-5, frank wrote:
> rigth one?
 
> Thanks
> Frank
 
Could be a mistake, or it could be intentional. IIRC, Diemen uses only a few common case molds so a lot of their LOPTs (we call them flybacks) look alike. A few years ago I bought some a generic transformer for an RCA and what they sent was missing the G2 wire. I called the company and they had one left and this one had the G2 wire.
 
According to Diemen, the 6098 does have an active pin 1:
 
http://www.hrdiemen.com/reparation/flyback/scheme/6098
 
I would say the wrong trans was put in the box (it did come in an H.R. box, no?). Here's a pic of the actual transformer. Does yours look like this print and all?
 
http://www.electronic-spare-parts.com/descript/h/hr_6098.htm
 
H.V. transformers are not difficult to make but H.R. transformers are premium, so it wouldn't surprise me if someone didn't try to stuff a cheap Asti Magnetics transformer into an H.R. box.
oldschool@tubes.com: Feb 25 04:23PM -0600

On Sat, 25 Feb 2017 18:29:37 -0000 (UTC), frank <frank@invalid.net>
wrote:
 
>rigth one?
 
>Thanks
>Frank
 
 
What is a LOPT? I'm guessing it's a Picture Tube (CRT), but after
reading your post, I am not sure what you're talking about....
Please define.....
Phil Allison <pallison49@gmail.com>: Feb 25 05:22PM -0800


> What is a LOPT? I'm guessing it's a Picture Tube (CRT), but after
> reading your post, I am not sure what you're talking about....
> Please define.....
 
** You could Google the term.
 
LOPT = HOT = horizontal output transformer.
 
 
 
.... Phil
Michael Black <et472@ncf.ca>: Feb 25 12:12PM -0500

oldschool@tubes.com: Feb 25 02:16PM -0600

>done with audio, but I have seen it done with radio amplifiers, a bunch of
>tubes in parallel so the output impedance is 50 ohms to match the coax.
 
> Michael
 
 
This is a good article about the "Wall of Sound".
It was (and probably still is) the greatest sound system ever built, but
it nearly bankrupt the Dead, and moving all that equipmnt from show to
show does seem very impractical. Those mcintosh MC3500 amps are still
the best anps ever built. More powerful solid state amps have been
built, but none can match that tube sound.
 
https://motherboard.vice.com/en_us/article/the-wall-of-sound
 
I dont doubt that there were fried amps, blown speakers and so on at
those concerts. Everything was being run at Max power and much of this
was still in development stages.
 
Paralleled tubes like you said, dont seem real practical for audio amps.
Having that high DC voltage on the speaker leads seems very dangerous.
"Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com>: Feb 25 08:07PM

"MJC" <gravity@mjcoon.plus.com> wrote in message
news:MPG.331ac172b068a710d@news.plus.net...
>> suddenly burst into life without any regulation!
 
> Thanks - wow, concentrating on the PSU stand-alone and not plugged into
> the m/b seems like a Good Idea!
 
You need a dummy load for that.
 
Only the 5V & 3.3V rails are regulated, once they come up to spec, the PWM
throttles back to idle - the other rails will collapse if you try to draw
current.
 
My dummy load uses both filaments of a H4 headlamp bulb for the 5 & 3.3
rails, an indicator bulb for the +12V and dash bulbs for the rest.
 
That loads it well enough to scope all the rails for ripple.
 
There's usually a very small electrolytic close to the SMPSU chip that
samples the error voltage - if that's one of the expired, the PSU can go
bang.
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