General Electronics

Hi Intensity LEDS

I must admit, I haven't been keeping up with advances in electronic components. I just bought a ( small ) LED flashligh...

6 comments posted 20yrs

posted by

6 comments posted 20yrs posted by

Strange problem with STAMP and transistor switches!

I've built a paddle-shifter controller for the electronically controlled transmission on my car, but it seems to be hav...

4 comments posted 20yrs

posted by cgwiita

4 comments posted 20yrs posted by cgwiita

LM7805 Minimun Input Voltage Require

I am trying to regulate my dc voltage of 5.8-6.5Vdc supply to a 5vdc I want to use the LM7805 regulator, not sure the m...

5 comments posted 20yrs

posted by stanley_8794

5 comments posted 20yrs posted by stanley_8794

12 volt peg perego

I have an older model 12 volt peg perego which runs on 2 -6volt batteries. The nine wires are disconnected and I have n...

1 comments posted 20yrs

posted by swanboats

1 comments posted 20yrs posted by swanboats

Pulling large wire in conduit

Four AWG #1 conductors in 2-1/2 inch EMT. 50 ft of conduit, four 90 deg. elbows. Is this combination reasonable to pull...

34 comments posted 20yrs

posted by me

34 comments posted 20yrs posted by me

science teacher needs help

I need a simple solution for a classroom science project. I am a science teacher and I am constructing apparatus to dem...

37 comments posted 20yrs

posted by rick.fetters

37 comments posted 20yrs posted by rick.fetters

Stumped by Laplace Transform

I am studying the Laplace Transform, and I was rather puzzled to find that the standard tables in the two textbooks we...

2 comments posted 20yrs

posted by null

2 comments posted 20yrs posted by null

A small group voting system design

Hey, everyone: I am trying to design a voting system for a small group of people (like 20 or less) which can summarize...

8 comments posted 20yrs

posted by lei.account

8 comments posted 20yrs posted by lei.account

Questions about size of magnetic wire to use

Is there some kind of guideline of what size of magnetic wire to use for induction coils (going off how many amps/volts...

33 comments posted 20yrs

posted by ewitte

33 comments posted 20yrs posted by ewitte

Linux and electronic

Hi! New address of my homepage is: http://www.pozsarzs.hu Some link are bad, because it is under construction. News: CD...

3 comments posted 20yrs

posted by pozsar_zsolt

3 comments posted 20yrs posted by pozsar_zsolt

Need Special Effects for Office Party

My office has decided to have a Halloween office party theme of Rome this year. I quipped about coming as "The Electric...

4 comments posted 20yrs

posted by pooua

4 comments posted 20yrs posted by pooua

PLL

I was wondering if anyone knows how the N divider worked on the Motorola PLL Frequency Synth MC145151-2. It has pins N0...

1 comments posted 20yrs

posted by metalimi

1 comments posted 20yrs posted by metalimi

sound sensor advice

Hi everyone, Can anyone help me select a microphone or some other sound sensor which will sense from 40db to 80dB sound...

1 comments posted 20yrs

posted by prabhakar.vivek

1 comments posted 20yrs posted by prabhakar.vivek

Seeking SIT tone generator chip

Fellow techies, I'm trying to find out who manufactures a single-chip (or even two or three) SIT tone generator. I want...

3 comments posted 20yrs

posted by SpammersAreVermin

3 comments posted 20yrs posted by SpammersAreVermin

Low-cost, high-quality design team

If you are looking for a low-cost, high-quality design team, take a look at Crystal Instruments (website: www.go-ci.com...

0 comments posted 20yrs

posted by digitalsignal999

0 comments posted 20yrs posted by digitalsignal999