Hobby Electronics Basics

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Long PCB prototypes made? 16"

In a previous query from about a year ago witih the subject "LEDs in Series with LM334 Current Source" (search google g...
1 comments posted 21yrs
posted by miketoni.arggg.
1 comments posted 21yrs posted by miketoni.arggg.

ColdHeat?

Has anyone here damaged or known someone who has damaged 'sensitive' electronic devices with ColdHeat? I've heard only...
6 comments posted 21yrs
posted by davidd31415
6 comments posted 21yrs posted by davidd31415

How to get a constant current source?

I have been frustrated for months working through an introductory circuits book, as I want to build many of the circuit...
3 comments posted 21yrs
posted by thomson.eric
3 comments posted 21yrs posted by thomson.eric

How to build a constant current source?

I have been frustrated for months working through an introductory circuits book, as I want to build many of the circuit...
10 comments posted 21yrs
posted by thomson.eric
10 comments posted 21yrs posted by thomson.eric

555 timer help

I'm a relative newbie with electronics, and I'm trying to build a small 555 based adjustable timing circuit. I have a 5...
3 comments posted 21yrs
posted by fudj.pakar
3 comments posted 21yrs posted by fudj.pakar

Timed circuit for operating an automotive relay

Hi there, wondering if anyone could help me out with a circuit. I would like to make a circuit which basically continue...
10 comments posted 21yrs
posted by lon
10 comments posted 21yrs posted by lon

Blue tooth connection with microcontroller

Hi...I need help to make system with wireless connection. There are devices that send input to uC (8052) on wire less c...
1 comments posted 21yrs
posted by denidoank
1 comments posted 21yrs posted by denidoank

Power mosfet to switch 140 VDC

I need help in using a power mosfet to switch on and off 140 VDC. The current is approximately 25 amps. The power will...
1 comments posted 21yrs
posted by soolun
1 comments posted 21yrs posted by soolun

connecting multiple 48v phamon power

Hey all; I'm goin to add a 2nd channel to my existing micpre (it's homebrew). The existing channel has 48v for phantom...
4 comments posted 21yrs
posted by toccata
4 comments posted 21yrs posted by toccata

workshop addition

i just finished my exams at uni and now i am going to devote myself to electronics. and my first project i think i'll s...
2 comments posted 21yrs
posted by divineworld
2 comments posted 21yrs posted by divineworld

RLC Circuit

Does anyone have an algorithem (Runge-Kutta second order)for solving series RLC circuit in Delphi?
0 comments posted 21yrs
posted by darko_lapanje
0 comments posted 21yrs posted by darko_lapanje

workshop addition

i just finished my exams at uni and i will devote a whole summer to electronics the first thing i will probably start i...
0 comments posted 21yrs
posted by atlantis
0 comments posted 21yrs posted by atlantis

workshop addition

i just finished my exams at uni and now i am going to devote myself to electronics. and my first project i think i'll s...
0 comments posted 21yrs
posted by atlantis
0 comments posted 21yrs posted by atlantis

Compatable power

Good morning Guys My daughter would like to bid on a curling Iron in the United Kingdom. Im in Canada is there going to...
5 comments posted 21yrs
posted by rickj
5 comments posted 21yrs posted by rickj

Programming a Kenwood TK-690 VHF Transceiver

Hi Gang, I am trying to work a circuit that I can use to program a VHF receiver. I'm going to use the Maxim MAX232 IC t...
0 comments posted 21yrs
posted by mjdrum
0 comments posted 21yrs posted by mjdrum