Hobby Electronics Basics

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Rescaling resistors on a 555-timers

I'm having an astable 555-timer with R1 = 8k2, R2 = 100, C = 1.5uF. Using these formulas: T1 = 0.693 * (R1 + R2) * C [...
3 comments posted 20yrs
posted by bos
3 comments posted 20yrs posted by bos

Basic electronics

What are Schkotty diodes.What is the application of the diodes
6 comments posted 20yrs
posted by karthik_eeeng
6 comments posted 20yrs posted by karthik_eeeng

How to connect an LCD module non-permanently

Hi all, I just received a 16x2 LCD from eBay. I've never used one of these before and am wondering what's the best way...
3 comments posted 20yrs
posted by dlenski
3 comments posted 20yrs posted by dlenski

Power supply

Something I would like to find: A regulated nine volt power supply that has an adapter that fits in the battery compart...
5 comments posted 20yrs
posted by thathillbilly
5 comments posted 20yrs posted by thathillbilly

Pronunciation of NiMH ?

I guess it doesn't get any more basic than this : How do you pronounce the abbreviation NiMH ? The pronunciation of NiC...
14 comments posted 20yrs
posted by mianileng
14 comments posted 20yrs posted by mianileng

Logic Gates

I look at all the symbols for the different logic gates, NAND, NOR, XNOR, etc. and on some of them they have a little c...
12 comments posted 20yrs
posted by consultec
12 comments posted 20yrs posted by consultec

Kneading Bread is Like Making a Shinto Sword

You have already mixed up the ingredients... including the yeast. In order for your yeast to go yum yum on what it migh...
53 comments posted 20yrs
posted by ilike_spam
53 comments posted 20yrs posted by ilike_spam

Good Online Electronics Information:

Hello everyone! I'd like to find some more good electronics information pages online that are similar to the following...
4 comments posted 20yrs
posted by wouldnt_u_like_to
4 comments posted 20yrs posted by wouldnt_u_like_to

Build alarm clock

I want to build a alarm clock that will start counting up when it is triggered. (e.g., at 5AM, it will go off and start...
34 comments posted 20yrs
posted by johjeffrey
34 comments posted 20yrs posted by johjeffrey

Asking for some PIC guidance

Hi there, Apologies in advance if I didn't pick quite the right newsgroups to post this in. I'm a total newbie to PIC u...
10 comments posted 20yrs
posted by slavinger
10 comments posted 20yrs posted by slavinger

control the electrical appliances using PC

Hi, I used the Circuit Diagram mentioned in the below link to "control the electrical appliances using PC". But it does...
12 comments posted 20yrs
posted by raghuyadav77
12 comments posted 20yrs posted by raghuyadav77

Designing wireless controllers

I am designing a game that requires three players to wirelessly signal a central unit whether their 'buzz in with the a...
6 comments posted 20yrs
posted by jtNOSPAMschwar
6 comments posted 20yrs posted by jtNOSPAMschwar

interesting article on op-amps

build your own pourpose designed op-amps! (no gratuuitous adds or other crap just a quality article) http://cygnus.ipal....
0 comments posted 20yrs
posted by jasen
0 comments posted 20yrs posted by jasen