Hobby Electronics Basics

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pic16f819 fried pins

Hi, A brand new pic16f819 fried under my eyes : it was running on my easypic2 development board, with nothing else than...
16 comments posted 20yrs
posted by noreply
16 comments posted 20yrs posted by noreply

Any Ideas to prevent Failures of Solid State relays

I am using Solid state relays to On/Off heaters so as to control temperature. In case if heaters get short,immediately...
5 comments posted 20yrs
posted by karthik_eeeng
5 comments posted 20yrs posted by karthik_eeeng

Ideas to prevent Failures of Solid State relays

I am using Solid state relays to On/Off heaters so as to control temperature. In case if heaters get short,immediately...
3 comments posted 20yrs
posted by karthik_eeeng
3 comments posted 20yrs posted by karthik_eeeng

Failures of Solid State relays

I am using Solid state relays to On/Off heaters so as to control temperature. In case if heaters get short,immediately...
1 comments posted 20yrs
posted by karthik_eeeng
1 comments posted 20yrs posted by karthik_eeeng

Solid State relays

I am using Solid state relays to On/Off heaters so as to control temperature. In case if heaters get short,immediately...
1 comments posted 20yrs
posted by karthik_eeeng
1 comments posted 20yrs posted by karthik_eeeng

oscilloscope bandwidth question

Hi, I am looking at buying a cheap scope, thinking og the Velleman hps10 or hps40. The specs for the hps40 says 40 MS/s...
9 comments posted 20yrs
posted by newsgroupie2003
9 comments posted 20yrs posted by newsgroupie2003

Uncharged capacitor is a short circuit?

Hey all, I'm curious why an uncharged capacitor can be viewed as a short circuit by, say, an amplifier? I thought an unc...
6 comments posted 20yrs
posted by bigschlong
6 comments posted 20yrs posted by bigschlong

Piezoelectric Speakers

Hi all, What's the reason why I can use a standard audio amplifier on a piezoelectric speaker? I have a hunch that it h...
2 comments posted 20yrs
posted by bigschlong
2 comments posted 20yrs posted by bigschlong

H-Bridge Contoller

Hello, I am trying to cycle an h-bridge from forward to reverse at a frequency of anywhere between 1 and 500Hz. I am us...
7 comments posted 20yrs
posted by JamesAnthonyJoyce
7 comments posted 20yrs posted by JamesAnthonyJoyce

Current through a voltage multiplier

How, if at all, does the capacitor size influence the current flow through a voltage multiplier? R
2 comments posted 20yrs
posted by dewhurst
2 comments posted 20yrs posted by dewhurst

Electric safety rule ?

Some years ago a guy promoting his anti-rust spray, he clam that the anti-rust spray have good dielectric, he than spra...
18 comments posted 20yrs
posted by mowhoong
18 comments posted 20yrs posted by mowhoong

L series chip availability? and 74367 vs 8T97

I a building a copy of the Altair 8800. The 74367 has been used as a substitute for 8T97 on peripheral cards. The 8080...
2 comments posted 20yrs
posted by grant
2 comments posted 20yrs posted by grant

Dipole antenna

What do we mean by saying that a dipole antenna is electrically short?
34 comments posted 20yrs
posted by papageorgiou40
34 comments posted 20yrs posted by papageorgiou40