Hobby Electronics Basics

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How to construct XOR function using NORs?

Hi, How would I construct an XOR function using NOR gates ONLY? I have tried breaking my head over it but haven't come u...
9 comments posted 22yrs
posted by srakesh
9 comments posted 22yrs posted by srakesh

audio amp question

I have a client who is looking for the following: a 9 volt audio amplifier into which a microphone and headphones plug....
4 comments posted 22yrs
posted by danno
4 comments posted 22yrs posted by danno

Will this circuit work?

http://www.geocities.com/smpaladin/circuit1.gif This is what the above circuit is supposed to accomplish: As long as a...
3 comments posted 22yrs
posted by smpaladin
3 comments posted 22yrs posted by smpaladin

miniature antennas

Hi, I have little knowledge about antennas, so I need some direction. I am needing to find tiny sized antennas for sale...
3 comments posted 22yrs
posted by letron_2000no__spam
3 comments posted 22yrs posted by letron_2000no__spam

Help on testing/picking an oscilloscope

My friend found for me what appears to be a cheap oscilloscope on sale at a used parts place. He took down some details...
6 comments posted 22yrs
posted by a?n?g?e?l
6 comments posted 22yrs posted by a?n?g?e?l

Inviting Entries to Electronic Design Contest

Objective: The purpose of the Electronic Design Contest is to promote excellence in the design of electronic systems an...
2 comments posted 22yrs
posted by caliberelectro
2 comments posted 22yrs posted by caliberelectro

Substitute for SSM2160 or SSM2163 (Audio Mixer ICs)

Hi all. The SSM2160 and SSM2163 seem to be well out of production. I've googled endlessly to try and find a chip that h...
1 comments posted 22yrs
posted by rob.nospam
1 comments posted 22yrs posted by rob.nospam

ELF detector

Hello, I was hoping someone could send me in the right direction to find information on a low frequency detector. Eithe...
5 comments posted 22yrs
posted by gemlover
5 comments posted 22yrs posted by gemlover

Double throw momentary switch question

Hi, Can anybody tell me a simple way to tweak a simple latch circuit to change state when the button is pressed in quic...
14 comments posted 22yrs
posted by Hal_leemuxNOSPAMMMPLEASE
14 comments posted 22yrs posted by Hal_leemuxNOSPAMMMPLEASE

Scematic request

Anyone have the schematic for an Archer (Radio Shack) TV RF amplifier? (The kind you plug into the wall and feed your TV...
0 comments posted 22yrs
posted by db5151
0 comments posted 22yrs posted by db5151

how hot can a transistor get

I changed a transistor on a print with another recommanded transistor. He's getting quite hot. I can't hold my finger on...
3 comments posted 22yrs
posted by jvancxyz
3 comments posted 22yrs posted by jvancxyz

hfe

Im my thread "transistors" from 22/9/04 Roger explained me how to determine the C and E with the hfe test after determi...
3 comments posted 22yrs
posted by jvancxyz
3 comments posted 22yrs posted by jvancxyz

Lumped element model limitation

Can somebody tell me why the lumped element model breaks down when actual circuit impedances are very low, or when the...
2 comments posted 22yrs
posted by tspjor
2 comments posted 22yrs posted by tspjor

learning computer architecture (books? kits?)

I want to spend a few months studying computer architecture, starting with the electronics. The knowledge that i'm star...
18 comments posted 22yrs
posted by q_q_anonymous
18 comments posted 22yrs posted by q_q_anonymous