Hobby Electronics Basics

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Nominal Amperage

I know there's nominal voltages for equipment, do amperage ratings have a similar range? I'm trying to match an 120V tr...
2 comments posted 21yrs
posted by peacefulclyde
2 comments posted 21yrs posted by peacefulclyde

controlling many switches from the PC

Hi, I would like to control arund 100 electric switches from my PC. Can someone guide me on this. Thanks in advance Arun...
9 comments posted 21yrs
posted by arunsahlam
9 comments posted 21yrs posted by arunsahlam

Novice Help AC DC Loadlines 6J5

Howdy, 6J5 Triode Circuit I'm looking for some help. Why when I use an AC plate supply(250VAC/RMS), are the voltage val...
4 comments posted 21yrs
posted by ..
4 comments posted 21yrs posted by ..

Parellel RC with DC voltage source?

This should be a simple analysis. I am analyzing a parallel RC circuit, with a DC voltage source. I have not yet studie...
4 comments posted 21yrs
posted by thomson
4 comments posted 21yrs posted by thomson

Linking 2 microcontrollers

Hi there, iam new to microcontrollers and need to link 2 microcontrollers (Philips 89C668, 80C51: 8 Bit family) such th...
10 comments posted 21yrs
posted by moukylove
10 comments posted 21yrs posted by moukylove

Driver for luxeon leds

Dear All, I'd like to built a driver circuitry for 8 Luxeon leds in series. Each of them has a forward voltage at 3.5 V...
14 comments posted 21yrs
posted by boothmultipler
14 comments posted 21yrs posted by boothmultipler

How do you test electric guitar electronics?

Hi everyone, My electric guitar was working several weeks ago but since I opened it and removed the pickguard and touch...
3 comments posted 21yrs
posted by marcoraicevic
3 comments posted 21yrs posted by marcoraicevic

Current limiting diode

I have been studying the design of a signal "booster" that is used in the DCC model railroading hobby. This booster's j...
2 comments posted 21yrs
posted by Steve
2 comments posted 21yrs posted by Steve

Zener Diode ID

This might be the weirdes questen here.... Well I picked up a miex lot of components and it has about 5-6 Zener Diodes....
10 comments posted 21yrs
posted by ronaksh
10 comments posted 21yrs posted by ronaksh

regarding hybrid parameters

where r these hybrid parameters used ? what for they r invented ?
3 comments posted 21yrs
posted by kumaravi1
3 comments posted 21yrs posted by kumaravi1

bell/buzzer board

hi i need help in making a bell /buuzzer board, the kind of thing that is used on t.v panel games where the quickest on...
2 comments posted 21yrs
posted by firefighterwatts
2 comments posted 21yrs posted by firefighterwatts

Digital cameras and the cold

The other day I brought my pentax optio 330 into the house from outside in the car. It was about 40 degerees F. Taking...
3 comments posted 21yrs
posted by etpm
3 comments posted 21yrs posted by etpm

Simulating with LTSpice ?

I am trying to simulate a buzzer circuit with LT Spice. The circuit is supposed to be astable, but the simulator doesn'...
9 comments posted 21yrs
posted by billycute
9 comments posted 21yrs posted by billycute

bpsk kit?

I have seen simple AM and FM receivers and transmitters, but these are usually only for radio reception or voice transm...
0 comments posted 21yrs
posted by urpNOSPAM
0 comments posted 21yrs posted by urpNOSPAM