Hobby Electronics Basics

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Magnet length and changes in guitar pickup properties

Hi, This is my first post and I don't know much about electronics, but I'm in the process of making guitar (well, bass...
0 comments posted 20yrs
posted by michaelkatsilis
0 comments posted 20yrs posted by michaelkatsilis

blocking

if you wont to block anyone or remove youre own messages. for blocking. click on the senders message and goto pull down...
2 comments posted 20yrs
posted by dingding
2 comments posted 20yrs posted by dingding

Ohms

I have some 12vdc relays. I need them for a automotive circuit. They are 1440 ohm coils. If i hook them directly to the...
2 comments posted 20yrs
posted by mrfreez
2 comments posted 20yrs posted by mrfreez

Two 6V fluorescents in series = 12V drop?

Can I put two Leviton L00-6511-6 fluorescents in series with a 12V source? See: http://www.leviton.com/pdfs/nightlights...
2 comments posted 20yrs
posted by cprstn54
2 comments posted 20yrs posted by cprstn54

gas sensing circuit help!!!!

hi~ i'm doing one of my fourth year course projects in EE, i need to design a transducer that can measure the CO2 level...
12 comments posted 20yrs
posted by ed_keropi
12 comments posted 20yrs posted by ed_keropi

Power mesure ac or dc signal

hi, i've an idea ......but i nedd to know if can work corretly. I've a TV hall tranducer dor voltage and a hall transdu...
6 comments posted 20yrs
posted by maxitubo
6 comments posted 20yrs posted by maxitubo

On Line Warning Phone Circuit

I have a multiple line phone system. I use a head set. People start talking to me when I'm on the phone, when because t...
14 comments posted 20yrs
posted by stevesemple
14 comments posted 20yrs posted by stevesemple

Substituting a transistor

I am going to trade a BC547 transistor for a TSxxxx transistor (Taiwan Semiconductors). In the datasheet of the BC547 I...
12 comments posted 20yrs
posted by bvandenbon
12 comments posted 20yrs posted by bvandenbon

urgente

quiero aprender el tema de arranque de motores trifasicos por coontactores
2 comments posted 20yrs
posted by ingllauce
2 comments posted 20yrs posted by ingllauce

27 VAC to 32 VAC?

Hello all, I am a lurker novice with a few questions. I have a transformer (specifically out of a pinball machine) that...
9 comments posted 20yrs
posted by biscuitbecks
9 comments posted 20yrs posted by biscuitbecks

pressure pad timing

I was wondering if it would be possible to connect a simple pressure mat to a time of some sort so that I could time pr...
1 comments posted 20yrs
posted by jlake71
1 comments posted 20yrs posted by jlake71

dumb battery question

I was talking to someone about batteries the other day. He said when you bring certain metals together, the potential a...
29 comments posted 20yrs
posted by mark-t2
29 comments posted 20yrs posted by mark-t2

12VDC to 18VDC

Does this still require a conversion to ac, up the voltage and then reconversion to dc? I would like to be able to use...
7 comments posted 20yrs
posted by newfdog2nospam
7 comments posted 20yrs posted by newfdog2nospam

Coax to 20 gauge?

I'm doing a little "garage experimenting" and would appreciate some insight wiring. Is it possible to convert a coax ca...
5 comments posted 20yrs
posted by karnavas
5 comments posted 20yrs posted by karnavas

Regulater for a solar battery charger?

I bought one and while reading the instructions they ay I need a regulater. So what would it take to build one? I'm con...
4 comments posted 20yrs
posted by clannorm
4 comments posted 20yrs posted by clannorm