Hobby Electronics Basics

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my 1 minit timer

i have put the circiut on alt.binaries.schematics.electronics
0 comments posted 20yrs
posted by dingding
0 comments posted 20yrs posted by dingding

Muting car stereo without damage?

Greetings All, I would like to be able to mute my car stereo with just a push of a button. The volume control is the di...
13 comments posted 20yrs
posted by etpm
13 comments posted 20yrs posted by etpm

Design circuits

Hi there I have completed EE and cannot design circuit.I want to improve my electronic practical knowledge. How can i i...
14 comments posted 20yrs
posted by scbalachandran
14 comments posted 20yrs posted by scbalachandran

transistor

Hi there I am looking for suitable Transistor to turn on /off the relay.Can anyone know a transistor work like relay. re...
2 comments posted 20yrs
posted by scbalachandran
2 comments posted 20yrs posted by scbalachandran

pump cut out

I have installed a water filter system in my house. There is an aerator pump that is 220 volt and is wired to the well...
2 comments posted 20yrs
posted by jca31
2 comments posted 20yrs posted by jca31

recommendation for a capacitor tester

Looking for a reasonably priced handheld capacitor tester, primarily for arcade equipment repairs, so power supplies, mo...
4 comments posted 20yrs
posted by jdieter
4 comments posted 20yrs posted by jdieter

12v Sensing Switch

Hi guys, I asked this question a long time ago, and I only got back to finishing the project recently. My problem was t...
3 comments posted 20yrs
posted by lessani
3 comments posted 20yrs posted by lessani

MAX756 inductor substitutes

Hello, Could anyone suggest replacement inductors for the ones specified in the MAX756 datasheet? My attmept to find th...
2 comments posted 20yrs
posted by
2 comments posted 20yrs posted by

60Hz noise making it's way into my test

I am NOT an engineer, I'm helping my Dad out with a PC based data acquisition program to test a product his company mak...
11 comments posted 20yrs
posted by SteveKlett
11 comments posted 20yrs posted by SteveKlett

Low Frequency Sound Thingy

Hiya, I'm just trying to get into the world of electronics as a fun hobby, and I'm looking to make somthing, yet I havn...
13 comments posted 20yrs
posted by jubodicstw
13 comments posted 20yrs posted by jubodicstw

Simple delay circuit

Hi there Im looking to build a delay circuit. Basically i want to be able to close a switch which activates a 5 - 10 se...
67 comments posted 20yrs
posted by domwells27
67 comments posted 20yrs posted by domwells27

USB Switch (not hub; not KVM)

I need to constantly transfer files between two networks (corporate & analysis) that *cannot* be connected directly. Cu...
5 comments posted 20yrs
posted by nobody
5 comments posted 20yrs posted by nobody

Dijkstra's algorithm

hello friends, I am new to this group and I am not much genious that I can give solution for problems of u people but I...
2 comments posted 20yrs
posted by hardikvaishnav
2 comments posted 20yrs posted by hardikvaishnav

oscillator basic

Can anyone give help. here.. I have an elementry question on oscillator theory. The oscillation criterion from a TI jou...
3 comments posted 20yrs
posted by ktlgary
3 comments posted 20yrs posted by ktlgary