Electronics Repair

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TA7317P output protection

Has anyone encountered fake TA7317P devices? I've just replaced one in an Electro Voice 81PMX powered mixer but the out...
33 comments posted 14yrs
posted by invalid
33 comments posted 14yrs posted by invalid

CRT size vs anode voltage?

I need a 10-15KV supply for an electronic air filter. Thought I'd pick up a free CRT TV and take the anode supply out....
10 comments posted 14yrs
posted by spamme9
10 comments posted 14yrs posted by spamme9

Special 10% log taper audio potentiometers?

http://i912.photobucket.com/albums/ac327/turnstyler/IMG_4237.jpg I'm fixing an old amplifier (Mission Cyrus StraightLin...
3 comments posted 14yrs
posted by email
3 comments posted 14yrs posted by email

Weird speaker problem

Hi I have a weird speaker problem. These are the speakers of a mini stereo system. The speakers are kind of old. We are...
5 comments posted 14yrs
posted by pepebuho
5 comments posted 14yrs posted by pepebuho

RCA 27" TV Ch M134C Service Menu Information

Hi, I have in my service shop, an RCA TV 27V412T chassis M134C that I can not set the TV sound for stereo. It stays in...
4 comments posted 14yrs
posted by jaugustine
4 comments posted 14yrs posted by jaugustine

A&H MIxwiz 16-2

Does anyone have a circuit diagram or link to one for an Allen & Heath Mixwizard mk1 or 2. I have one but can I find it?...
0 comments posted 14yrs
posted by ron
0 comments posted 14yrs posted by ron

Hearing aid design

I have known that my hearing has been getting worse over the last few years. I recently had a hearing test to confirm t...
35 comments posted 14yrs
posted by captainvideo462009
35 comments posted 14yrs posted by captainvideo462009

Do Magnatrons wear out?

I have small microwave and it seems the power is getting less and less as time passes. Do Magnatrons wear out? Mikek
13 comments posted 14yrs
posted by amdx
13 comments posted 14yrs posted by amdx

Studiomaster Powerthouse 300 8.2, 1996

I'm being spun the story that this was put into storage and on powering up again , just the mixer section was working....
6 comments posted 14yrs
posted by diverse
6 comments posted 14yrs posted by diverse

SM diode marking woes.

I'm noticing that some circuit boards I'm repairing have SM diodes marked with the old General Semiconductor logo and t...
3 comments posted 14yrs
posted by see.my.sig
3 comments posted 14yrs posted by see.my.sig

Sometimes, you just gotta get brutal ...

Had a JTS radio mic receiver on the bench today. "No power", said the job ticket. With 12 volts going in, the output fr...
39 comments posted 14yrs
posted by arfa.daily
39 comments posted 14yrs posted by arfa.daily

magentic generators

is there magentic generators
7 comments posted 14yrs
posted by william.plunkett55
7 comments posted 14yrs posted by william.plunkett55