Hobby Electronics Basics

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Analogue circuit question -advice needed please !

I should know how to do this, but please treat as a Newbie query :) I have a simple circuit question for any analogue e...
16 comments posted 21yrs
posted by amremote
16 comments posted 21yrs posted by amremote

44780 LCD queries

Hi everyone, I am trying to use CCM1620CSL(a 44780-based LCD module) and that is the first LCD i am trying my hands on....
4 comments posted 21yrs
posted by ankur.pathela
4 comments posted 21yrs posted by ankur.pathela

extreme newbie question

Been trying for months to find a watch beeper. NOT A WATCH WITH A BEEPER IN IT! All I want are the parts or even the ci...
9 comments posted 21yrs
posted by blarg
9 comments posted 21yrs posted by blarg

TTL / RS-232 conversion circuit

Hi All, I am interfacing a ham radio to a computer to program it and I have been looking at various TTL / RS-232 conver...
7 comments posted 21yrs
posted by a7b98208
7 comments posted 21yrs posted by a7b98208

higher rated fluorescent bulb in socket?

Hi, can I put a 60W fluorescent bulb, 120V 60Hz 14W 0.200A rated, in a 40W rated socket. Thanks. for your help.
1 comments posted 21yrs
posted by JoshTmp
1 comments posted 21yrs posted by JoshTmp

timing an RC car

I want to make a timing gate for an RC car. I don't want to spend more than $50. My thoughts would be to have a light b...
8 comments posted 21yrs
posted by 1qazse4
8 comments posted 21yrs posted by 1qazse4

OBSOLETE CMOS NEEDED

Greetings, I've been using Google with less than desired results. I have two CNC machine controls built by Fanuc about...
4 comments posted 21yrs
posted by etpm
4 comments posted 21yrs posted by etpm

very simplistic potentiometer question

I am just beginning to tinker with electronics. I've decided to start very simply and work my way up to the fun stuff....
8 comments posted 21yrs
posted by idontwant
8 comments posted 21yrs posted by idontwant

squirrel zapper

---------------------------------- Hi, Can anyone help me with making a device that will allow me to shock squirrels on...
22 comments posted 21yrs
posted by mxer1231232_at_yahoo_dot_com
22 comments posted 21yrs posted by mxer1231232_at_yahoo_dot_com

Spice power source?

I'm kind of stuck on making a 50 ohm power source in Spice (instead of just using the voltage or current sources). I wo...
2 comments posted 21yrs
posted by billcalley
2 comments posted 21yrs posted by billcalley

Racing start lights ( like F1 tracks)

Hello, i would like to know if someone has a link to a circuits to create starting lights for races ? I would like it t...
2 comments posted 21yrs
posted by Mobidoy
2 comments posted 21yrs posted by Mobidoy

Newbie - water detector circuit help please

Hi all, I've not dabled with any electronics since High school (about 10 years) and have a fairly specific requirement...
14 comments posted 21yrs
posted by mbailey
14 comments posted 21yrs posted by mbailey

Reading Hundreds of analog voltages

Hi, I have to measure the voltages of hundreds of batteries and display them on a PC. For the start the number is 200....
12 comments posted 21yrs
posted by convergence_1
12 comments posted 21yrs posted by convergence_1

Solenoid operation

I'm trying to understand basic solenoid operation a little better. I was under the impression that if I applied DC to a...
5 comments posted 21yrs
posted by rspinks1
5 comments posted 21yrs posted by rspinks1