Electronics Repair

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General Radio 1604-B ?

Had one follow me home from the local hamfest. It's a Comparison Bridge with a 2" scope from the mid 50s. Neat looking...
3 comments posted 17yrs
posted by kolesnik
3 comments posted 17yrs posted by kolesnik

Need used computers for my school / Students

Hello Good people out there., I would be grateful to anyone who could donate some used PCs and other materials to a sch...
1 comments posted 17yrs
posted by fynnashba
1 comments posted 17yrs posted by fynnashba

1/3W resistor failure mode?

Was in a valve /tube amp HT line as a dropper carying about 250V , no obvious heating of the body or surround of this 1...
13 comments posted 17yrs
posted by diverse
13 comments posted 17yrs posted by diverse

VCR video playback problem

It's a Zenith VCS442. Worked fine until the video playback started to look like the heads needed cleaning (fuzzy pictur...
6 comments posted 17yrs
posted by no
6 comments posted 17yrs posted by no

Warwick Sonic III amp

Not the cause of the problem that it is here for repair, but I cannot return it to the owner with this glaring potentia...
4 comments posted 17yrs
posted by diverse
4 comments posted 17yrs posted by diverse

How to repair a stealth bomber???

I've bought a cheap stealth bomber on ebay but it doesn't work. How can I repair it???
3 comments posted 17yrs
posted by pipe_nurses
3 comments posted 17yrs posted by pipe_nurses

Astron RS-35M POWER SUPPLY

I have an Astron RS-35M. I load it down with 1 ohm and it wont come up when I flip the power on. I load it with an 8amp...
1 comments posted 17yrs
posted by revellm
1 comments posted 17yrs posted by revellm

Needed service manual for TECHNICS SA-222 Receiver

Could someome please send me the service manual for a Technics model SA-222 receiver. remove ".no.spam." from email addr...
0 comments posted 17yrs
posted by mp.no.spam.cecil
0 comments posted 17yrs posted by mp.no.spam.cecil

LCD display repair?

Backlit Hitachi monochrome LCD display has dark horizontal lines obscuring much of the displayed text. I understand tha...
7 comments posted 17yrs
posted by me
7 comments posted 17yrs posted by me

Sony Beta VCR Idler Problems

I recently bought a bunch of old Beta VCRs, hoping to fix them for resale. Most are Sony's, and the first one I put on...
1 comments posted 17yrs
posted by zappyman
1 comments posted 17yrs posted by zappyman

Anyone know what this thing is?

What is this? It has a minijack socket for some sort of input signal. http://img90.imageshack.us/img90/9308/p1040481.jpg...
3 comments posted 17yrs
posted by sound.service
3 comments posted 17yrs posted by sound.service

MAG LCD TV Dead - Model 3200 MA-32EF1AC

Hello Everyone, I have this dead LCD TV, no light or sound and the power supply is providing the 24, 12 and 5 Volt DC....
0 comments posted 17yrs
posted by homeboy12550
0 comments posted 17yrs posted by homeboy12550

Any tips for toroidal transformer winding. ?

Power type with iron and copper between 2 and 3 Kg. Thick gauge of wire so hand winding using shuttle. Any ideas on a r...
3 comments posted 17yrs
posted by diverse
3 comments posted 17yrs posted by diverse

LCD projector Problem

I have had a chance to dig into this LCD projector that has been producing ghost images. I tried disconnecting all but...
6 comments posted 17yrs
posted by mikek400
6 comments posted 17yrs posted by mikek400

renovating plastic cases

Some time ago, someone posted about de-yellowing old plastic equipment cases - It might have been Mr Cook - I just came...
6 comments posted 17yrs
posted by ron
6 comments posted 17yrs posted by ron