General Electronics

modem update

well this is no longer on the topic of electronics. i did several things to the 56k modem. i plugged it into a differen...

1 comments posted 20yrs

posted by gravityzrainbow

1 comments posted 20yrs posted by gravityzrainbow

A few questions about those TWO-WAY RADIOS... ???

I see ads all the time for those little WALKIE-TALKIE like two-way radios that claim to have a range of anywhere from 3...

5 comments posted 20yrs

posted by Leesa_Tay

5 comments posted 20yrs posted by Leesa_Tay

Triac Snubber shows is has voltage in OFF state!

Hi , I have designed and made a triac switch , to turn ON and OFF a 3-speed AC motor that works with 220VAC. with tree...

1 comments posted 20yrs

posted by hojabri

1 comments posted 20yrs posted by hojabri

Free Tectronix 545B in Boston Area

I am cleaning house, and have a like new Tek 545B with a dual-trace plug in that is available without cost to anyone wh...

2 comments posted 20yrs

posted by hhc314

2 comments posted 20yrs posted by hhc314

remote control for sony hr-mp5 multi-fx unit

although the sony mp5's are old they're very nice processors and I'm still using mine. I've been to the sony website bu...

0 comments posted 20yrs

posted by tg

0 comments posted 20yrs posted by tg

Modifying ATX PSU from AC-DC to DC_DC

Looking for any information on how to possibly convert a standard ATX psu to run off of DC input (say 12-30v). I know t...

9 comments posted 20yrs

posted by old_fart35

9 comments posted 20yrs posted by old_fart35

Can a voltage drop affect a computer?

I just set up an air conditioner in the same room as my computer. I've = noticed that whenever the air conditioner turn...

30 comments posted 20yrs

posted by curious

30 comments posted 20yrs posted by curious

Looking for a sanity check on a stepper driver circuit

I've got a radio-controlled step-sequencer/driver built, tested, and functional for driving a single steper motor. As i...

12 comments posted 20yrs

posted by dakidd

12 comments posted 20yrs posted by dakidd

I2C programmer wanted

I need to send 4 bytes to a frequency synthesiser chip with an I squared C interface. I am a hardware engineer and not...

6 comments posted 20yrs

posted by bob.minchin

6 comments posted 20yrs posted by bob.minchin

Crimping SMA connector on RG174 cable

Hi, I've bought the following SMA connector: http://www.manoweb.com/alesan/temp/sma/ I wonder how should I mount it. I'...

0 comments posted 20yrs

posted by alesanRemoveMePlease

0 comments posted 20yrs posted by alesanRemoveMePlease

More magazines listed on ebay - Poptronics/ Nuts & Volts

Just listed a bunch of lots of Portronics and Nuts & Volts magazines on ebay if anyone is interested. Good for browsing...

0 comments posted 20yrs

posted by rgvac_05_06

0 comments posted 20yrs posted by rgvac_05_06

robot sensors

Hi I have a project that I'm doing now. I want to build a robot (on wheel) that would cover a predetermind floor area....

1 comments posted 20yrs

posted by lerameur

1 comments posted 20yrs posted by lerameur

Need help with simple relay time delay circuit

Could some of you give me some input. This is a project on my boat.I have a momentary micro switch on my shifter linkga...

1 comments posted 20yrs

posted by pranthony

1 comments posted 20yrs posted by pranthony

Does anyone make an "alarm" that tells when something is powered on/off?

Does anyone make an "alarm" that tells when something is powered on/off? I'm picturing something you plug an appliance...

5 comments posted 20yrs

posted by scuch

5 comments posted 20yrs posted by scuch

stereo to 5.1 sound

Hello, all I have an Inspire 5.1 Sound kit from Creative Labs. It works fine, connected to my DVD Player, which have an...

0 comments posted 20yrs

posted by cgrahl

0 comments posted 20yrs posted by cgrahl