Hobby Electronics Basics

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OT? DIY Powerstat Wiper Button

I got a Powerstat type 10B cheap at a yard sale and discovered later that the wiper button was missing. I've been advis...
6 comments posted 20yrs
posted by mfergerson1
6 comments posted 20yrs posted by mfergerson1

What exactly is digital anyway?

I apologize for the silly title as I had no other idears. This thread may end up being useless bore but if it makes any...
29 comments posted 20yrs
posted by waynelittle
29 comments posted 20yrs posted by waynelittle

using a LED as a light sensor

Hi, Here is an idea about using a LED as a light sensor, to dim a 7-segments LED display : http://www.micro-examples.co...
79 comments posted 20yrs
posted by please_reply_in_the_forums
79 comments posted 20yrs posted by please_reply_in_the_forums

ER5911 Serial EEPROM

I'm having some difficulty sourcing a new serial EEPROM for a old PCB - can anyone recommend a supplier please? Or even...
0 comments posted 20yrs
posted by matt-hall
0 comments posted 20yrs posted by matt-hall

Telephone in use indicator Help

I have made the circuit at the link below. http://www.techlib.com/electronics/telephone.html Its the first one in the l...
31 comments posted 20yrs
posted by stevesemple
31 comments posted 20yrs posted by stevesemple

Connecting LED's to direct 120VAC?

Is it possible to connect a blue (or white) LED to direct 120VAC using just a resistor? or world I have to convert the...
16 comments posted 20yrs
posted by Phillip77776666
16 comments posted 20yrs posted by Phillip77776666

RMS vs Peak representation of A/C voltage

HV ac probe I have says on the label "6kv peak max". What is the max RMS voltage I can measure (according to the mfr.)?...
4 comments posted 20yrs
posted by me
4 comments posted 20yrs posted by me

Noob trying to build a small guitar amp

Hey guys, after searching the web for some simple schematics, I found this 8 watt amp that would be perfectfor me as a...
17 comments posted 20yrs
posted by ngdbud
17 comments posted 20yrs posted by ngdbud

Regulated power supply for electronics in a car

I am about to install some consumer electronics gear in a car. One piece runs on 12VDC the other on 5VDC. I know just e...
0 comments posted 20yrs
posted by yan
0 comments posted 20yrs posted by yan

How to load portable drill battery?

How to load portable drill battery if it have two inputs (+/-), but battery loader have three (+/-/and other one)?
1 comments posted 20yrs
posted by fokusas
1 comments posted 20yrs posted by fokusas

best suited technology for fast data switches

Hello newsgroup, in the context of my diploma I must make an evaluation, which technology is best suited for integrated...
2 comments posted 20yrs
posted by quinn_the_esquimo
2 comments posted 20yrs posted by quinn_the_esquimo

Layout interview

Hi, I have an interview coming up in a month regarding layout or printed circuit board designer. I need to prepare for...
2 comments posted 20yrs
posted by conphiloso
2 comments posted 20yrs posted by conphiloso