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Electronics Repair Discussions about repairing electronic devices (as opposed to the common habit of throwing them out)
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Please see below the list of the most recent and the best rated articles in Electronics Repair

The most recent discussions

This has me puzzled (resistor change)

January 20, 2019, 10:33 pm

There is a video on youtube, where a guy re-caps and repairs and tests out a late 1940's Precision Apparatus E-200 signal generator. Video name: Repair of a late-'40's Precision E-200-C RF signal... Read more »

Dyson cyclone puzzle

January 16, 2019, 8:26 pm

Dyson DC50, a lightweight ok but nothing spectacular machine except the air passages are too narrow. Suction of dirt from the floor head is very poor. Hoses checked clear, chan geover mechanism w... Read more »

Panasonic DVD Recorder model DMR-ES20 Problem

January 16, 2019, 5:29 pm

Hi, I have a Panasonic DVD recorder, model DMR-ES20, issue. When you plug it in (AC outlet), the rolling ooooooo (initializing/recovery) never ends. I can force it to go into standby by hol... Read more »

Why were old transformers coated with tar?

January 15, 2019, 3:24 am

I remember a lot of old transformers, particularly the power transformers on the old TV sets, were coated with tar. It was not a real problem, but was kind of ugly, particularly when the wires had ... Read more »

1936 Hoover Junior 375

January 14, 2019, 2:00 am

I've done the 1940s ones, fairly straightforward. Roller brush bearing clea nout & oil, thorought electrical safety checks & cleanup, wash bag, new bel t on one, pad a stripped screw socket thread ... Read more »

Making an Adaptor from the vintage single wire 5/8" screw on MIC conne...

January 10, 2019, 2:03 am

Most of my vintage testers have those old style 5/8 screw on MIC connectors. I have considered changing all of them to BNC and I see many people do this, but I really dont feel like opening each te... Read more »

What differentiates good audio xmfrs from bad ones?

January 9, 2019, 5:38 pm

I see really expensive audio output and power transformers for sale as well as cheap ones. And lots of folks really want older ones because they are better than the new crop. So what is the diff... Read more »

Panasonic cross reference

January 9, 2019, 2:14 am

Hi Group, I'm working a Panasonic TC-P50S2. The tv won't power up and no le d blinking codes, I found a surface mounted component that is shorted. the board placement # ZD554 the part #VZPTZ6.2BT ... Read more »

Using a Signal Generator for an "In Home" radio transmitter

  [ 2 3 ]
January 7, 2019, 7:33 pm

Is it possible to use a Signal Generator for an In Home radio transmitter? I would like to make a small in the house AM radio transmitter, so I can listen to my own music collection of MP3 music o... Read more »

Vintage TV repair test equipment

January 7, 2019, 7:33 pm

Over the years I have acquired a lot of vintage test equipment. I still use most of it, but I have the following, which I think is something I will never use. I only work on Tube gear, or real earl... Read more »

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The best rated discussions


Sony PS-LX510

Is there anyone who might be familar w/ this turntable? Problem w/ sticking linear tracking tonearm. I cleaned the dust & dirt off the rail but may need to lube it. What do I use? Also, a source ne... Read more »


Are faulty APC UPS's easy repairs or is it throw in the trash?

Hi, I have two faulty APC BackUPS CS500's each with a different fault. The first unit will switch to battery when there is a power cut. However, when the power is restored, it will not switch back t... Read more »


Source for non polar caps

Need a source for some non polar electro caps. Tried all the usual suspects. values 6.5 uF 25v and 3.3 uF 25v TIA Red Read more »


Learning Electrical Repair

  [ 2 ]

I don't want to pick up another career or spend 20 years learning electrical repair, but I would like to learn something about this area. I don't care for ham radios or tv repair either. But barring ... Read more »


Fluke 87 LCD

This is a straightforward question. I don't want it to become a megillah or a tsimmes. My 20-year-old Fluke 87 has one or two segments and several enunciators that have dimmed. I assume this is due ... Read more »


My network used to work.

My network is set up like this: Charter cable modem -> my Netgear cable modem used as a wireless router -> Airlink secondary router used as a secondary wireless access point. Things were so easy ... Read more »


Update: Charging MP3 Player, Coby MP620-4G

Hi, Since my original post, I bought the Coby MP620-4G MP3 player. The OM says to use a high power USB port (computer). There is no other information in the OM or at their web site on a recomm... Read more »


black and decker coffee pot wiring diagram

I have a Black and Decker coffee maker model # CM1050B type 2. I need the value of the #1 resistor on the control board #HET-BST CM1050-P. Resistor is burned and cracked. It looks like a one watt c... Read more »


Tek 7000 Series Fixtures 067-0655-00 vs 067-0589-00 fixtures

We're running through the calibration on our 067-0587-10 Standardizers and they're failing frequency response. All points lead to the 067-0655-00 fixture going bad, which we only have one of. We tr... Read more »


How do USB players keep track of position.

The devices that plug into the cigarette lighter and play sound from a USB drive through car radio speakers have the ability to remember where they left off, and, even when power is removed from th... Read more »