Hobby Electronics Basics

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can u send some projects regsrdind to electronics which could b finished in low cost........?
1 comments posted 19yrs
posted by chetan.kumar.1989
1 comments posted 19yrs posted by chetan.kumar.1989

741 Op Amp Question

I used to have a Sony cassette recorder in the early 80s that if you wore headphones and pressed record, you could lite...
5 comments posted 19yrs
posted by jgbarber65
5 comments posted 19yrs posted by jgbarber65

Audio Up/Down Conversion

Does anyone have a schematic (or link to one) of a circuit that will convert very low (below human audio) and very high...
4 comments posted 19yrs
posted by jgbarber65
4 comments posted 19yrs posted by jgbarber65

Characteristic impedance - low vs high frequencies

Hi Why characteristic impedance of transmission line isn't important at low frequencies (1000kHz) and it is one of the...
22 comments posted 19yrs
posted by skyline1
22 comments posted 19yrs posted by skyline1

Volts Amps Watts Help I'm Dumb

If I buy a generator that produces 1000 watts @120 volts which makes 8.3 amps, but use the 12 volt outlet plug how many...
13 comments posted 19yrs
posted by bonain
13 comments posted 19yrs posted by bonain

ac induction motor speed control problem

Hi I'm experimenting with a single phase ac 220V ac induction motor. I want to regulate speed and for this i'm using a...
2 comments posted 19yrs
posted by mixkef_removeme_
2 comments posted 19yrs posted by mixkef_removeme_

10v Trigger for strobe

I have a strobe light which has a xlr input for a 10v trigger. I want to get this to flash in time to some music, I tho...
4 comments posted 19yrs
posted by mrichytech
4 comments posted 19yrs posted by mrichytech

transmission line transformer

Hello, Winding a transformer with a transmission line is a technique often used to improve the bandwidth of a transform...
4 comments posted 19yrs
posted by charlesdesmurf
4 comments posted 19yrs posted by charlesdesmurf

Use Piezo Transducer as a switch?

I'm sure this is very basic but could anyone tell me how to use a piezo transducer with a hacked computer keyboard? I'v...
3 comments posted 19yrs
posted by gavspav
3 comments posted 19yrs posted by gavspav

Nichrome Wire

I just want to share this with the group. I have been using nichrome for resistors and foam cutting. The best souce I ha...
16 comments posted 19yrs
posted by sparky72854
16 comments posted 19yrs posted by sparky72854

250V plug wiring question

I have a line cord with black, white and green conductors. I wish to use it to connect to a 250V plug. Except for the g...
76 comments posted 19yrs
posted by judwms
76 comments posted 19yrs posted by judwms

question

hi. picmicro 18f452 is a RISC family but it has 75 instruction set.why? does a RISC micro can have 75 instruction set?
5 comments posted 19yrs
posted by adonis_318
5 comments posted 19yrs posted by adonis_318

power supply

Hi, I have a roland drum kit that runs on a 9v 1200ma power supply. I also have a 12v 400amp battery charger pack, with...
6 comments posted 19yrs
posted by trevorboult
6 comments posted 19yrs posted by trevorboult

Power supply converter

HI, I have a roland electronic drum kit that runs on a 9v 1200ma adapter.
1 comments posted 19yrs
posted by trevorboult
1 comments posted 19yrs posted by trevorboult