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Info about KEC 168

Does anyone know about KEC 168....?? Its an infrared receiver IC , probably by Korea Electronics.
1 comments posted 20yrs
posted by amd.zfr
1 comments posted 20yrs posted by amd.zfr

Transistor Saturation

I've got a bunch of general purpose NPN transistors and I want to turn on and off 15Vdc with 5Vdc from logic chips like...
9 comments posted 20yrs
posted by bborb
9 comments posted 20yrs posted by bborb

Transmitter

HI all, I was looking at some RF circuits. I have a question concerning the capacitor c4 in the folowing diagram: http:...
6 comments posted 20yrs
posted by lera
6 comments posted 20yrs posted by lera

Logarithmic response of PN junctions

I was just musing about "log amps", where they exploit the exponential/logarithmic relationship between the current and...
5 comments posted 20yrs
posted by eatmyshorts
5 comments posted 20yrs posted by eatmyshorts

Powering Thermostat with 24VDC instead of 24VAC

I would like to convert(hack/mod) a digital thermostat into a temperature controller. Most of it is fairly straight for...
2 comments posted 20yrs
posted by FryingDutchman
2 comments posted 20yrs posted by FryingDutchman

5 and 10 MHz clock inputs

If, a device has 5 and 10 MHz clock inputs, will you generally get better performance with the 10 MHz? What is the point...
3 comments posted 20yrs
posted by mike7411
3 comments posted 20yrs posted by mike7411

Elementary Transistor Problem

Yeah these questions are really hitting the fundamentals, but thanks for anyone who helps me :) I have a typical NPN tr...
6 comments posted 20yrs
posted by garbagemanx99
6 comments posted 20yrs posted by garbagemanx99

Information on IC PA2003C

Hi. I picked up one of those battery/alternater testers at Radio Shack on clearance for a few bucks. This is nothing mo...
2 comments posted 20yrs
posted by realboats
2 comments posted 20yrs posted by realboats

Self-Clocking Data?

Hiya, I've recently taken an interest in interfacing with floppy disk drives just for the heck of it, and while I've le...
9 comments posted 20yrs
posted by fyberoptic
9 comments posted 20yrs posted by fyberoptic

3 phase inverter design

Do we have anyone here that's knowledgeable about inverters? I'm just starting to gather information on 3 phase inverte...
6 comments posted 20yrs
posted by nomail
6 comments posted 20yrs posted by nomail

detecting contact closure

Greets all. I'm an amateur at this, so please disregard any errors in my techincal description. I have a seemingly simp...
9 comments posted 20yrs
posted by post
9 comments posted 20yrs posted by post

IC Designations

Hiya folks. I was looking over at http://www.wdesignc.com/wdc/w65c816s.cfm at the modern versions of the 6502/65816, an...
2 comments posted 20yrs
posted by fyberoptic
2 comments posted 20yrs posted by fyberoptic

A/C Induction Motor Hookup

Helping a friend put a new motor on a lathe. It is a westinghouse 1-phase 115/230v 4-pole (1725 rpm) capacitor (start/r...
0 comments posted 20yrs
posted by gpk9
0 comments posted 20yrs posted by gpk9

basic mosfet question

hello, I was wondering how much voltage should we measure in the gate of a P-channel power MOSFET. I ask this because I...
3 comments posted 20yrs
posted by cheian07
3 comments posted 20yrs posted by cheian07