Hobby Electronics Basics

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Coil primer?

--Am thinking of making some custom solenoid valves for a special project but am clueless about coils. What I would lik...
2 comments posted 18yrs
posted by steamer
2 comments posted 18yrs posted by steamer

Recommend a good cheap LDO 5V

Can anyone recommend a good cheap LDO (2 Bucks or less small quantity 10 or 20), preferably one that doesn't need a $5...
6 comments posted 18yrs
posted by spamme
6 comments posted 18yrs posted by spamme

8085 SBC needs help

I have wired a simple SBC based on the basic 8085 chip. Using 74LS373 as a latch clocked by ALE, 2716 for program stora...
9 comments posted 18yrs
posted by allenbsf6502
9 comments posted 18yrs posted by allenbsf6502

Replacement parts

Hi, I need to find replacement parts for a Helitrim 9V trimpot that is labeled: 72x R1k 8134S and a BCD transistor (tha...
2 comments posted 18yrs
posted by fcache
2 comments posted 18yrs posted by fcache

are caps and coils linear circuit elements?

iv curves of caps and coils are not linear, so are they nonlinear or linear circuit elements? What is the definition of...
14 comments posted 18yrs
posted by Lax.Clarke
14 comments posted 18yrs posted by Lax.Clarke

Pro 82 Scanner programming cable

I tried to locate a Pro 82 Scanner programming cable without luck so I'm going to make a bunch of them, email me if inte...
0 comments posted 18yrs
posted by scott93727
0 comments posted 18yrs posted by scott93727

Some What OT: Schooling

Hello Everyone, I would like to start schooling into Electronic Eng. Tech.. I have about 12-15 credits, 4.0 GPA. I have...
13 comments posted 18yrs
posted by NOwaynerrSPAM
13 comments posted 18yrs posted by NOwaynerrSPAM

Heathkit IO 12

Hello list. New here and very much a tinkerer so hope you'll bear with me. Just came by a Heathkit io12 scope. The prev...
4 comments posted 18yrs
posted by nickcudahy
4 comments posted 18yrs posted by nickcudahy

Is it FREE ENERGY or what?

Do like this: Put a source of DC or AC current with an electronical millisecond switch and a capacitor of the same powe...
1 comments posted 18yrs
posted by tiberiugrabany
1 comments posted 18yrs posted by tiberiugrabany

SMD in circuit testing

Which instruments can I use to test capacitance and resistance in circuit?
1 comments posted 18yrs
posted by sukovic
1 comments posted 18yrs posted by sukovic

Search for simple vacuum monitoring system

hi alls, i want to make a simple vacuum readout unit in which the ionization current from cold cathode guage is read by...
2 comments posted 18yrs
posted by amjad.here
2 comments posted 18yrs posted by amjad.here

old 1970's hobby I want to find

I am looking for a piece of hobby electronics I had in 1978 and this seemed to be a good place to ask. It was a black b...
4 comments posted 18yrs
posted by rabiticide
4 comments posted 18yrs posted by rabiticide

Voltage drop

Hi all, I had a circuit of output = -3V (for a lcd supply). However, when i connect the lcd up, the voltage to that pin...
6 comments posted 18yrs
posted by ydoubleuz
6 comments posted 18yrs posted by ydoubleuz

Atanua - real-time logic simulator

As the final project in my school, I'm building a real-time logic simulator called Atanua. It's available from: http://...
13 comments posted 18yrs
posted by jari.komppa
13 comments posted 18yrs posted by jari.komppa