Electronics Repair

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LED slow off

Is it normal for LEDs to not turn offimmediately? - = - Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus blo...
9 comments posted 6yrs
posted by vjp2.at
9 comments posted 6yrs posted by vjp2.at

How is this possible?

My power comes from a line that is about 2000 feet long and my drop comes from about the middle. It is just two wires,...
11 comments posted 6yrs
posted by etpm
11 comments posted 6yrs posted by etpm

good mineral oil removal?

In the midst of revamping an old electronic project where the high voltage components were under oil. There have been l...
13 comments posted 6yrs
posted by jhorton
13 comments posted 6yrs posted by jhorton

Test Equipment

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0 comments posted 6yrs
posted by peterwieck33
0 comments posted 6yrs posted by peterwieck33

Mouse Refurbish

My favorite mouse is acting up. Buttons double-click on a single-click and sometimes do not click at all. I tried repea...
53 comments posted 6yrs
posted by MouseUser
53 comments posted 6yrs posted by MouseUser

Took a peek into the Dumont 241 scope

I couldn't resist and took a peek into my Dumont model 241 scope. The quality of the workmanship is top notch. There ar...
2 comments posted 6yrs
posted by etpm
2 comments posted 6yrs posted by etpm

Tube Testers?

I am just getting into tube, AKA valve, stuff. At this point I am learning about them, how they work, how they are used...
29 comments posted 6yrs
posted by etpm
29 comments posted 6yrs posted by etpm

How do you test an ANALOG RF meter?

Cobra 29 cb. The meter never moves on receive, transmit, or ever. An external SWR meter confirms its transmitting and I...
6 comments posted 6yrs
posted by tubeguy
6 comments posted 6yrs posted by tubeguy

Re: Film capacitor as power-supply filter

>> Perhaps one economic factor is that, as the cost of other components has >> fallen, people expect the electrolytic c...
0 comments posted 6yrs
posted by g
0 comments posted 6yrs posted by g

Do all Cobra CB radios have bad readouts?

Just picked up a Cobra 29 LTD WX classic radio. I really dont find much use for CB anymore. But for a couple bucks, I l...
5 comments posted 6yrs
posted by tubeguy
5 comments posted 6yrs posted by tubeguy

Repair card edge connectors...

Has anyone here used tinned copper tape for repairing PCB card edge connections? I've used the PACE kit for many years...
1 comments posted 6yrs
posted by spam
1 comments posted 6yrs posted by spam

Looking for tips on speaker cone repair

Looking for tips on speaker cone repair. Years ago, I used rubber cement and toilet paper on the rips. Any better sugges...
7 comments posted 6yrs
posted by tubeguy
7 comments posted 6yrs posted by tubeguy