Electronics Repair

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Rigol DS1054 LF common-mode aberation

Looking at Low-Frequency noise on a 60Hz power supply, using a Rigol DS1054 and not getting very far. One puzzling issu...
6 comments posted 9yrs
posted by legg
6 comments posted 9yrs posted by legg

Re: Amplifier transistor substitution.

> >> The smoke escaped from my old oscilloscope today. I've determined that >> it came out of R740, to the bottom right...
6 comments posted 9yrs
posted by curd
6 comments posted 9yrs posted by curd

Power switch is erratic on receiver

I picked up a used Koss HH375 receiver at a Goodwill store. It's purpose is to power some speakers for my computer's so...
16 comments posted 9yrs
posted by oldschool
16 comments posted 9yrs posted by oldschool

inverter refrigerators

l have come across quite a number of refrigerators that has inverter for it s compressor motor these days. The problem...
6 comments posted 9yrs
posted by fynnashba
6 comments posted 9yrs posted by fynnashba

Strange laptop PS behavior

I have a used Dell Inspiron 5558 laptop, which didn't come with an OEM power supply. I picked up a 65W "universal" type...
14 comments posted 9yrs
posted by bitrex
14 comments posted 9yrs posted by bitrex

OT: W10 - Candy Crush Saga.

While trying to fix another problem - I found an entry for Candy Crush Saga in a default programs/file associations men...
3 comments posted 9yrs
posted by Benderthe.evilrobot
3 comments posted 9yrs posted by Benderthe.evilrobot

Peavey Bandit, Solo Series, 1981

Normal channel missing just mV of output, same with footswitch supposed operation, lead ch is fine. Seems to be a rare...
7 comments posted 9yrs
posted by diverse
7 comments posted 9yrs posted by diverse

Tektronix 2215a Motherboard

Hello Group, I am looking for a replacement motherboard for my Tektronix 2215a oscilloscope. Any thoughts and suggestion...
1 comments posted 9yrs
posted by davidahoneycutt
1 comments posted 9yrs posted by davidahoneycutt

Toshiba Setting Forgotten

My Toshiba TV remembers things like favorites but will not remember my setting of Daylight Savings Time so the next tim...
2 comments posted 9yrs
posted by MyToshiba
2 comments posted 9yrs posted by MyToshiba

Cable Repair

USB Phone cord. Molded connectors. At phone end, cable cracked all around at end of strain relief. Interior wires are O...
4 comments posted 9yrs
posted by ooo
4 comments posted 9yrs posted by ooo

What Shielded wire to use for RF Test Leads

Looking on the web, I have found numerous suggestions and no definite answer. To make a shielded test lead for use on a...
13 comments posted 9yrs
posted by oldschool
13 comments posted 9yrs posted by oldschool