Electronics Repair

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'scope clock advice please

Well, I've been gone for a month and this group is dead. So maybe my questions will liven it up some. Or maybe everyone...
17 comments posted 7yrs
posted by etpm
17 comments posted 7yrs posted by etpm

Hickok 440 Curve Tracer Repair Help

I have a Hickok 440 curve tracer that I am having difficulty troubleshootin g, even though it is a relatively simple ci...
12 comments posted 7yrs
posted by edfredcorp
12 comments posted 7yrs posted by edfredcorp

Lost two LCD monitors 12/2008

Ok, the first monitor was old, maybe 12yrs, on an HP Aero. But the same week I lost a brand new computer monitor. And t...
10 comments posted 7yrs
posted by vjp2.at
10 comments posted 7yrs posted by vjp2.at

DeOxit as a corrosion inhibitor

"How corrosion inhibitors protect metal: synthesis in the lab and testing" (23:01) This video isn't really about DeOxit...
22 comments posted 7yrs
posted by jeffl
22 comments posted 7yrs posted by jeffl

Flakey Molex(?) connectors

Part of my Habitat volunteering has involved repairing their power tools. They get Milwaukee tools from the Milwaukee r...
18 comments posted 7yrs
posted by BobEngelhardt
18 comments posted 7yrs posted by BobEngelhardt

Noisy repeater output

Hi, my old HT DMM is still abandoned, but... I must repair a Vertex VRX-7000 repeater that has a noisy output: https://...
7 comments posted 7yrs
posted by LEDITApaolo.carrer
7 comments posted 7yrs posted by LEDITApaolo.carrer

Step Recovery Diodes - a blast from the past...

A colleague drops by my office toating a Tek R293 Programmable pulse genera tor and power supply and asks "Can I use a...
12 comments posted 7yrs
posted by jjhudak
12 comments posted 7yrs posted by jjhudak

Yaesu FRG-7700 Tuning dial mechanical fault

The tuning dial of my Yaesu FRG-7700 receiver will not rotate beyond about 780 Khz. Is that easy to fix?
3 comments posted 7yrs
posted by LuciferMorningstar
3 comments posted 7yrs posted by LuciferMorningstar

Re: crappy laptop company

> > It's too bad ThinkPad used to be a quality product when IBM made them > but it's just bargain basement zombie-brand...
10 comments posted 7yrs
posted by elson
10 comments posted 7yrs posted by elson

Ping: Phil Hobbs

Hi Phil Do you have the expertise to satisfy the query of a poster called 'Viking' - he's asking his question in anothe...
9 comments posted 7yrs
posted by BDonTJ
9 comments posted 7yrs posted by BDonTJ

Make your own toobs!

I didn't know people still do this... https://www.youtube.com/watch?v=dRI0ZLTP6_0
5 comments posted 7yrs
posted by curd
5 comments posted 7yrs posted by curd

Re: humming CFL

> > >> I've been listening to a weak FM radio station, on a radio, and 2 feet >> away was a desk lamp. It used a CFL an...
13 comments posted 7yrs
posted by NONONOmisc07
13 comments posted 7yrs posted by NONONOmisc07

Another old-timer tube/valve question

Gentlemen, What are the typical average/maximum operating temperatures of a full wave rectifying tube/valve? Is it norm...
20 comments posted 7yrs
posted by curd
20 comments posted 7yrs posted by curd

Multiple learning (and forget) remote control?

Generic term perhaps? Say you have 10 different IR remotes around the house. If one gets lost,broken, eaten by dog etc,...
1 comments posted 7yrs
posted by diverse
1 comments posted 7yrs posted by diverse

Bulging caps by design?

Getting inside a TV for the all too common reason, to divert the crappy internal speakers to something decent, ie large...
10 comments posted 7yrs
posted by diverse
10 comments posted 7yrs posted by diverse