General Electronics

Generic problem with microphones,phantom powering and op-amps?

Actually a repair problem for a low noise microphone pre-amp but seems to be a general design flaw. Pre-amp uses a Burr...

2 comments posted 21yrs

posted by diverse

2 comments posted 21yrs posted by diverse

uc3852 pfc cct one more try.

Hi all. In got no responses to the last post , so I'll try again , in case my news server did not let it through. I am...

4 comments posted 21yrs

posted by seegoon99

4 comments posted 21yrs posted by seegoon99

FS or Trade: Schroff Desktop Rack Cabinet

Trade or FS: Schroff Desktop Rack Cabinet 19 inch Desktop Rack Cabinet - (12 inch enclosure depth, 300mm usable depth)...

0 comments posted 21yrs

posted by Invalid

0 comments posted 21yrs posted by Invalid

converting line-level audio signal to resistance?

Can someone explain how you would take a line level audio signal and conver it to resistance in the range of 0 - 1 MOhm?...

6 comments posted 21yrs

posted by usenet_daughter

6 comments posted 21yrs posted by usenet_daughter

Bridging Power Grids of Different Frequencies

I recently heard that one of the negotiations going on between North Korea and several other countries may involve the...

6 comments posted 21yrs

posted by martin

6 comments posted 21yrs posted by martin

What is sybillance?

Yes I know what it sounds like, but can someone give me a freq domain analysis (i.e. how to get rid of it by filtering)...

1 comments posted 21yrs

posted by nomail

1 comments posted 21yrs posted by nomail

0.1 ohm Resistors from Scratch Again

I'm up to my tricks of winding 0.1 ohm resistors from some fine copper wire and a resistor to wind it on. But I'm havin...

110 comments posted 21yrs

posted by NOSPAM

110 comments posted 21yrs posted by NOSPAM

How to reverse resistance?

I have a (fuel level) sender that changes resistance from 0 Ohm (empty) to 90 Ohm (full). Fuel gauge, however, expects...

23 comments posted 21yrs

posted by peter

23 comments posted 21yrs posted by peter

Inverter Fuses - Amps and VOLTS?

Maybe someone could give me a definitive answer on this: In my car I was using a 300-watt power inverter which provides...

8 comments posted 21yrs

posted by nospam

8 comments posted 21yrs posted by nospam

Radio Amateur's Handbook, Online

http://www.gutenberg.org/etext/6934 The 2.59 MB file has the text in ASCII and schematics in png format. The Radio Amat...

0 comments posted 21yrs

posted by default

0 comments posted 21yrs posted by default

Maxim-Dallas Semiconductor chips

Can anyone suggest where I might be able to obtain MAX811 and MAX812 chips?

1 comments posted 21yrs

posted by tjf00

1 comments posted 21yrs posted by tjf00

Do you need an awesome switch?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7349661988&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1 Ok, check out the a...

0 comments posted 21yrs

posted by welshdragon

0 comments posted 21yrs posted by welshdragon

what kind of fuse?

I have a 12v timer/relay powered by a 12v marine battery. Timer is powered by battery and has a relay that passes throu...

1 comments posted 21yrs

posted by patgowa

1 comments posted 21yrs posted by patgowa

anyone buy from all-spec?

They have a cheap Weller WES51 soldering station (cheapest I've found). Wondering if they are a good company? www.all-sp...

2 comments posted 21yrs

posted by Robert.F.Miller

2 comments posted 21yrs posted by Robert.F.Miller

Wiegand

What is the Wiegand Format ? Is there a specification of it somewhere ? I had no luck doing an online search...

2 comments posted 21yrs

posted by vtbose

2 comments posted 21yrs posted by vtbose