General Electronics

Question about FRS/GMRS Walkie Talkies

The inexpensive FRS/GMRS walkie talkies operate on up to 22 channels, each with selectable 38 subchannels.For example,...

8 comments posted 22yrs

posted by rlewart

8 comments posted 22yrs posted by rlewart

Unlocking the controls on a COMPAQ V570?

Hi all! I have the following problem with a COMPAQ V570 monitor: The internal controlling chip locked the keys (when I...

2 comments posted 22yrs

posted by random.pjwo

2 comments posted 22yrs posted by random.pjwo

Power amps-> power consumed vs output power.

Hi all, I service professional audio power amps. And I am always asked the question, how can this amplifier which state...

4 comments posted 22yrs

posted by myronx19

4 comments posted 22yrs posted by myronx19

Any Idea What The Symbols Mean?

I picked up a Nokia Cell Phone Charger Wall Wart at our computer club consignment table and it has some symbols that ar...

0 comments posted 22yrs

posted by alondra101

0 comments posted 22yrs posted by alondra101

Free - ETI, Elektor ,Wireless World, Television magazines of 1970s to 80s

Free to anyone calling to collect, Southampton ,Hampshire, England Could be evenings or weekends by prior arrangement....

0 comments posted 22yrs

posted by diverse2

0 comments posted 22yrs posted by diverse2

FA: VME chassis, desktop. 2 days left. Excellent Condition!

This item is perfect for a hobbyist, a lab, or a system prototyper. A very nice (unused) 6-slot VME chassis/desktop enc...

0 comments posted 22yrs

posted by johnebaynospam

0 comments posted 22yrs posted by johnebaynospam

NE-2H (Neon Lamp) Specifications

Anyone have specifications for NE-2H (Neon Lamp)? Striking voltage, valley voltage, etc.? Thanks! ...Jim Thompson -- |...

28 comments posted 22yrs

posted by invalid

28 comments posted 22yrs posted by invalid

Revised Drawer Placards posted

alt.binaries.schematics.electronic Bigger font... better fit.

0 comments posted 22yrs

posted by DarkMatter

0 comments posted 22yrs posted by DarkMatter

There but for the grace of God...

Midtown Journal: Homeless Repairman Mixes High Tech With Low Overhead December 7, 2003 By ALAN FEUER N.Y. Times Perry V...

0 comments posted 22yrs

posted by no.spam

0 comments posted 22yrs posted by no.spam

Better Design for Computer Power Supplies?

The design of every computer switching power supply that I have seen starts out with the mains power being rectified an...

2 comments posted 22yrs

posted by sthoma20lowspam

2 comments posted 22yrs posted by sthoma20lowspam

Emitter design for negative ion generators...

Hi thanks to read. I wish to design a negative ion generator. Two questions remains yet: 1-Whats the best emitter desig...

6 comments posted 22yrs

posted by kilowatt"nospam"

6 comments posted 22yrs posted by kilowatt"nospam"

Are Walkman radios superhets?

I wonder if the walkman type AM/FM radios are superhets. I took one apart and could not find any IF transformers. Same...

2 comments posted 22yrs

posted by rlewart

2 comments posted 22yrs posted by rlewart

Q: Finding resonant frequency

Hello me again...Darn it. This question is about finding the resonant frequency of a piece of stainless steel. Wonderin...

7 comments posted 22yrs

posted by peterlowrie

7 comments posted 22yrs posted by peterlowrie

Want simple strobe circuit

Good Folk, I'm looking for a simple strobe circuit for a fairly high powered strobe light to flash once or twice a seco...

9 comments posted 22yrs

posted by My.address

9 comments posted 22yrs posted by My.address

NiCad vs. NiMH Battery Chargers

Can NiCad chargers be also used for NiMH batteries? If not what precautins should be taken? Most chargers cut off aroun...

2 comments posted 22yrs

posted by rlewart

2 comments posted 22yrs posted by rlewart