General Electronics

Optobox for a Velleman K7103 ?

Hi, I own a Velleman K7103 PC storage oscilloscope and I'm looking for the electric schematic of the optobox (to optica...

0 comments posted 22yrs

posted by artur.mar

0 comments posted 22yrs posted by artur.mar

Do Wiggle Stick Meters Wear Out?

I bought a HP 721 PS on Ebay for thirty something incl S&H, does a whopping quarter amp at 30VDC, and uses all germaniu...

91 comments posted 22yrs

posted by alondra101

91 comments posted 22yrs posted by alondra101

Test Power Drill Battery Charger

I just got a new 15.6 V craftsman drill and noticed that when charging the nicd batteries, the do *not* get warm at all...

3 comments posted 22yrs

posted by no

3 comments posted 22yrs posted by no

Another CAN SPAM Loophole?

We Hate Spam, Congress Says (Except When It’s Sent by Us) N.Y. Times December 28, 2003 By JENNIFER 8. LEE WASHINGT...

8 comments posted 22yrs

posted by no.spam

8 comments posted 22yrs posted by no.spam

Big Screen TV Help

Hi, I have 2 big screens and both are not working at the moment. I have had them for a while in the garage and just dec...

2 comments posted 22yrs

posted by pay4back

2 comments posted 22yrs posted by pay4back

? on SWR/wattmeter

I just bought a Herald Electronics SWR/power meter, and have a question on operation. The only SWR/power meter I am fam...

3 comments posted 22yrs

posted by dbeane

3 comments posted 22yrs posted by dbeane

Homogenized Ni Cd Batteries

I was too lazy to take the headlight off my unshocked hybrid bike before heading out to Elephant Head and now my 15 yea...

1 comments posted 22yrs

posted by bretcahill

1 comments posted 22yrs posted by bretcahill

rear window defogger replacement switch melts plastic covers

Hi, the rear window defogger switch of my car is defective. The parts office asks for $45 for a new part, and I cannot...

9 comments posted 22yrs

posted by interuser

9 comments posted 22yrs posted by interuser

power injector for an RCA omni directional antenna

I am looking for a power injector for an RCA omni directional antenna. I called RCA and they said they dont sell just t...

2 comments posted 22yrs

posted by guy_nat

2 comments posted 22yrs posted by guy_nat

Electronics project blog?

Hi, I'm wondering if there is a community projects site for electronics projects. What I'm thinking is something where...

2 comments posted 22yrs

posted by deadfx

2 comments posted 22yrs posted by deadfx

Simple line level amp circuit for auto application?

I've hack-installed a satellite radio receiver into my car's factory stereo, however the line level output of the recei...

2 comments posted 22yrs

posted by scottNO

2 comments posted 22yrs posted by scottNO

Recording audio from the soundcard to a VCR ... why doesn't it works ?

Hi ! I have a nvidea fx5200 graphic card with TVout (composite video) and I trying to record some PC videos to a VCR. B...

10 comments posted 22yrs

posted by paraasnews

10 comments posted 22yrs posted by paraasnews

Latest Fiasco: DVD Player Video Out to Antenna In

I bot a MagnetBox DVD player for $50 after rebate but it and all the others didn't have a RF modulator, they only have...

12 comments posted 22yrs

posted by alondra101

12 comments posted 22yrs posted by alondra101

display has no hard wire connections.

There are face plate displays on car audio ( e.g.. CD players ) that when you disassemble the faceplate there are no ha...

2 comments posted 22yrs

posted by dmrbaptie

2 comments posted 22yrs posted by dmrbaptie

Electronics tutorial

Hi, I saw a university lecturer type site a few weeks back with tutorials on DC, AC electronics, digital electronics an...

3 comments posted 22yrs

posted by chris

3 comments posted 22yrs posted by chris