Electronics Repair

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Fun with amplifier distortion!

I finally found some time to set aside to look into the distortion issue I've been experiencing with the Uher 4000 Repo...
4 comments posted 2mos
posted by cd
4 comments posted 2mos posted by cd

stripping insulation from these tiny wires??

I am trying to strip some of the insulation from these tiny wires terminating in connectors: https://imgur.com/a/QZ6bV7...
7 comments posted 3mos
posted by nsebul
7 comments posted 3mos posted by nsebul

USB extension cables

ASI says that USB extension cords "risk signal degradation and power issues, especially for USB-C". By signal degradati...
44 comments posted 3mos
posted by NONONOmisc07
44 comments posted 3mos posted by NONONOmisc07

excel columbs to rows

I want to switch vertical column data into horizontal rows, in excel. ... or say transfer first (secon, third) ten rows...
7 comments posted 3mos
posted by legg
7 comments posted 3mos posted by legg

Resistor in PSU supply lead?

Hi all, So I scoped the rails of this Uher tap deck I've been working on and they were noisy as hell; a lot of ugly rip...
4 comments posted 3mos
posted by cd
4 comments posted 3mos posted by cd

replace UPS battery with lithium ion?

I have an older Cyperpower 550VA where I just replaced the traditional 12V lead acid battery. Since I've had great succ...
9 comments posted 4mos
posted by none
9 comments posted 4mos posted by none

Flashlight runs even when off

I have several little LED flashlights, 2 1/2" long and 7/8" in diameter, and on one the pushbutton switch on the end br...
6 comments posted 4mos
posted by NONONOmisc07
6 comments posted 4mos posted by NONONOmisc07

LIttle cheap readido is dead. Thermal fuse?

I have a cheap little radio that runs on AC or batteries, a Jensen MR-550, fwiw. The voltage coming out of the power tr...
9 comments posted 4mos
posted by NONONOmisc07
9 comments posted 4mos posted by NONONOmisc07

intermittent Dell XPS 420 failure

I have an old Dell XPS 420 desktop that wouldn't come on some weeks ago. I was finally able to get it working by cuttin...
3 comments posted 4mos
posted by dolob55J
3 comments posted 4mos posted by dolob55J

Monitoring ignition on a 1990 Honda Si.

Hi again, An Owon 2202S scope is mounted on the dash and connected to spark plug wires 3 & 4 of my Honda now. The pictu...
3 comments posted 4mos
posted by peter
3 comments posted 4mos posted by peter

Copper-constantan thermocouple.

Anyone worked with copper-constantan thermouples? How are the two wires joined? A dry bath heats a block of aluminum wh...
3 comments posted 4mos
posted by peter
3 comments posted 4mos posted by peter