Hobby Electronics Basics

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% Charged--Two Readings: Why the Difference?

I have a Xantera 600HD Power Pack and decided to try it out for a situation I might want to use it in. I wanted to see...
7 comments posted 19yrs
posted by wolf_tracks
7 comments posted 19yrs posted by wolf_tracks

Sampling Theory question

I have a general question about sampling theory. Most of this comes from college coursework, and our friend Google. If...
11 comments posted 19yrs
posted by waynelittle
11 comments posted 19yrs posted by waynelittle

I DESTROYED MY TELEVISION SET

I GOT CABLE ONE DAY AND I WAS TRYING TO FIND SOMETHING TO WATCH AND I WATCHED MTV FOR ABOUT 2 HOURS THEN I GOT A BOWLIN...
2 comments posted 19yrs
posted by sitremagana
2 comments posted 19yrs posted by sitremagana

Schmitt Trigger using an LM324?

Hello all, I have a question for the group...I have built inverting and non-inverting Schmitt Trigger with symmetrical...
3 comments posted 19yrs
posted by zuckuss
3 comments posted 19yrs posted by zuckuss

offset error adjustment circuit

The system I'm studying has integrator made of op amp(PA85),and they made additional circuit for offset error adjustmen...
8 comments posted 19yrs
posted by sperelat
8 comments posted 19yrs posted by sperelat

questions about light & radiation

Hi all wanted to ask following questions, just out of curiosity: About visible light being electromagnetic radiation: 1...
32 comments posted 19yrs
posted by j_joensuu
32 comments posted 19yrs posted by j_joensuu

Track depth of discharge by coulombs?

Can I model a 100% charged lead acid battery as a store of X coulombs and use a microcontroller to integrate the curren...
8 comments posted 19yrs
posted by bobgardner
8 comments posted 19yrs posted by bobgardner

ESD of "bug zapper"

I work at a manufacturer of industrial computer systems. Circuit boards and IC's are regularly handled. In my departmen...
6 comments posted 19yrs
posted by mike.huttner
6 comments posted 19yrs posted by mike.huttner

op-amp comparator

Hi, I was doing the sine to square converter with op-amp comparator LM339. During the course i was stuck with a problem...
3 comments posted 19yrs
posted by naga.deer
3 comments posted 19yrs posted by naga.deer

ground loop

I'm trying to understand a system with rf circuit. I found that there is a concept called "groundloop" I searched it at...
5 comments posted 19yrs
posted by sperelat
5 comments posted 19yrs posted by sperelat

multi spark piezo?

I am building a gas mixer for gopher control. The mechanics of the gas side have been taken care of with double flashba...
2 comments posted 19yrs
posted by oldfart
2 comments posted 19yrs posted by oldfart

memory of the computer

In computer suppose if deleted any data or any document or software that will stored in the memory of the computer. so i...
1 comments posted 19yrs
posted by swapnapriya2020
1 comments posted 19yrs posted by swapnapriya2020

HOW TO MEASURE TIME OF FLIGHT

Hello, I'm trying to message a transducers time of flight. The transducer has two leads and has an operating frequency...
5 comments posted 19yrs
posted by somewere
5 comments posted 19yrs posted by somewere

OT: Tiny electronic musical keyboards

Years ago, you could purchase these little toy electronic pianos that had all of 12 keys (buttons, actually) and were t...
2 comments posted 19yrs
posted by JKolstad71HatesSpam
2 comments posted 19yrs posted by JKolstad71HatesSpam