Electronics Repair

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Owon PDS 5022S

A few years ago, my Owon PDS 5022S oscilloscope failed with a strange looking display. See photo at: From what is visib...
10 comments posted 2yrs
posted by jeffl
10 comments posted 2yrs posted by jeffl

Burying Power Co cables

After Hurricane Andrew in the 1990s there was a lot of talks about putting more cables underground. THe Feds offered Lo...
1 comments posted 2yrs
posted by vjp2.at
1 comments posted 2yrs posted by vjp2.at

Unusual lamp bulb.

Hi, Photo of the bulb and box here. http://easthope.ca/Bulb25T6.5.jpg 145 V, 25 W. The filament in this bulb is broken...
3 comments posted 2yrs
posted by peter
3 comments posted 2yrs posted by peter

Car Radio gets hot on AC adaptor

Got a 60W car radio, hooked it up to a 24W 120VAC adaptor Radio gets hot in back lower middle Also ganged red (power) &...
0 comments posted 2yrs
posted by vjp2.at
0 comments posted 2yrs posted by vjp2.at

Replacing Electrolytics

HI all, Electrolytics of all values tend to fall under suspicion when any vintage piece of equipment develops a fault....
6 comments posted 2yrs
posted by cd
6 comments posted 2yrs posted by cd

Glass tubes vs tin whiskers

Unlike lead, tin solder grows dendrites or whiskers which can short circuit. Same principle as concrete stalagtites gro...
1 comments posted 2yrs
posted by vjp2.at
1 comments posted 2yrs posted by vjp2.at

Terminal block usage.

Hello again, I'll be connecting wires to the terminal block of a motor controller. Two connections will each have two w...
4 comments posted 2yrs
posted by peter
4 comments posted 2yrs posted by peter

Where is the fuse on a RIGOL DG2072 generaror?

Near the on/off switch on the front panel or near the power connector on the back panel? I'cant find in the manual :-( R...
1 comments posted 2yrs
posted by coulon
1 comments posted 2yrs posted by coulon

Add-on automatic volume control

Does anyone sell an add-on AVC or AGC, automatic volume control that can be used with an existing one-piece radio? I bo...
10 comments posted 2yrs
posted by NONONOmisc07
10 comments posted 2yrs posted by NONONOmisc07

Wire harness building materials

Went looking for some spiral cable wrap to build a few simple wiring harnesses. ISTR it was pennies per foot some years...
7 comments posted 2yrs
posted by bp
7 comments posted 2yrs posted by bp

soldering micro usb

Linkedin Lynda says slather it with solder then quickly wick off the excess But a nomber of electronics academics shudde...
2 comments posted 2yrs
posted by vjp2.at
2 comments posted 2yrs posted by vjp2.at

AC-only MP3 pLAYER

I'd like an mp3 player that runs off AC and doesn't need charging ANd most of the charger ones won't work while chargin...
1 comments posted 2yrs
posted by vjp2.at
1 comments posted 2yrs posted by vjp2.at

Leader LBO-518 CRT Scope Y axis drift

Picked up this as a donation yrs ago, mostly in good shape only its got Y axis drift, which seems to settle down on war...
0 comments posted 2yrs
posted by tech
0 comments posted 2yrs posted by tech

Re: Alps rotary encoder ID

On Sun, 05 May 2024 17:17:14 -0700, Jeff Liebermann snipped-for-privacy@cruzio.com wrote: >It's probably not a resistiv...
3 comments posted 2yrs
posted by jeffl
3 comments posted 2yrs posted by jeffl