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we have a fax machine that is always busted whenever there's a power surge,so I suspected that the power supply of the fax machine is not regulated..instead of fixing it I decided to make one. but

Have you tried the http://groups.yahoo.com/group/electronics group? I am a member of more than one group (if one group can not answere a question, perhaps another [of the same type]can?).

Hello guys, Im Buknoy,recently subscribe in this group. Im a Electronics Technician for a quite sometimes now and I want to enhance my knowledge in electronics.,I hope this group will be a great

checkout www.icmaster.com to find who makes the IC. Then go to the manufacturer website. =] matt hill --- Zach Archer <slander@...>

I need to build a jig using an AC source from outside to see if a multimeter is functional. Have to design it to be able to test resistance, cap, current both AC and DC, voltage, diodes. Does

I generated low-level AC voltage using a sound program on my computer -- I looped a 60 hz sine wave, and ran it through my mixer for amplification, and then into the transformer. On this side, the

Zach, try AC voltage, Good Luck, Steve

Well, aside from just looking up the part number on google, there's: The Chip Directory http://www.embeddedlinks.com/chipdir/ and Semiconductor Cross Reference

Well there's your problem right there. Transformers only work for AC. It's inductive coupling. As the primary's voltage goes up and down, a magnetic field expands and collapses. This magnetic

Oh yeah -- I also got a few IC's in the package. Is there a directory (online or otherwise) that can identify their function, and (hopefully!) indicate what the pins do? Thanks -- Z

Greetings all, I won a small box of assorted electronic components on eBay, which arrived today. I'm still trying to evaluate + test all of them, but I have a question regarding transformers. The box

The audio bandwidth over telephone connections is too low to support full-motion video. However, amateur radio operators have been sending color pictures over the airwaves using the small audio

Well, first you should learn a bit about the nature of a video signal, and the frequency response of telephone systems. The audio in telephones is of a very limited band. Something like 500-3000 Hz

oh, btw, they sell things for old tv's that have a coax to a two wire split forked piece that you screw down... I've got one for an old console that's not cable ready. They're real common. Considering

what's wrong with using a coax?! Joshua ---- "A meow massages the heart." nKode / Pulse 8 - aim:jkerseyVCSO http://www.goodtimetribe.com http://www.mp3.com/stations/d-r-e-a-m

I want to send a video by telephone line, but i dont know how to start im lookin for a circuit that modulate the telephone line with a viedo sinal and at the other end it demodulate to see this

Well, you could do some experiments with pulse width modulation. I hear that is used quite a bit for pulse DC motor control. You can make this with a 555 timer circuit like

Can Any one give me Any info on how to mod DVD players so they are multi code????? )O( )O( )O( )O( )O( )O( )O( )O( )O( )O( )O( )O( )O( )O( The Sinister Dragon Hey, Just because

Hello. I'm trying to run a 24v D/C gear motor with the ability to control RPM between 20 - 35. Continuous operation, 9 hours per day. 50 inch oz. of torque. Looking at the Molon C15, or other type

I have a large quantity of used Futaba M202SD08 standard character display modules (vacuum flourescent displays or VFDs) for sale for $15.00 each, with free shipping. (Free shipping applies to US