Hobby Electronics Basics

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Need help identifying this driver

Mystery stepper Driver I picked up a bunch of small stepper motors with drivers on Ebay but haven't had any luck findin...
3 comments posted 20yrs
posted by none
3 comments posted 20yrs posted by none

Eliminating DC on an AC line

Hi there, I was wondering if anyone could point me in the direction of instructions on how to rig up a filter to remove...
8 comments posted 20yrs
posted by harry
8 comments posted 20yrs posted by harry

New Computer Bus Group

I started a new google news group called interfacebus. The group will act as a forum for the web site http://www.interf...
9 comments posted 20yrs
posted by Interfacebus.Engineer
9 comments posted 20yrs posted by Interfacebus.Engineer

Does this look right?

I made a simple circuit in "Electronics Workbench" and the amp meter reports over 8A across the resistor. I thought the...
41 comments posted 20yrs
posted by sinebar
41 comments posted 20yrs posted by sinebar

555 Timer Question

I am interested in setting up a 555 timer for extremely long pulse times, 15 minutes. Also, an AC output, one positive...
28 comments posted 20yrs
posted by semajx7
28 comments posted 20yrs posted by semajx7

PID contollers

What r PID controllers.pls brief me
7 comments posted 20yrs
posted by karthik_eeeng
7 comments posted 20yrs posted by karthik_eeeng

Power transistor overheating

I am building an electric fence using a 12 volt battery to energise a NE555 timer to drive a TIP41C transistor into a c...
9 comments posted 20yrs
posted by tallison
9 comments posted 20yrs posted by tallison

PIC I/O Questions

Hi Group, The schematic below (in ASCII art, please view with Fixed font) shows how my friend connects a switch and an...
5 comments posted 20yrs
posted by allenbsf6502
5 comments posted 20yrs posted by allenbsf6502

diode forward voltage confusion

Is "forward voltage" and "forward voltage drop" for a diode the same? I read where forward voltage is the min voltage t...
4 comments posted 20yrs
posted by sinebar
4 comments posted 20yrs posted by sinebar

Data Decoding at 10 Gbit/s

Hi, I would like to design a 16 channel SERDES ASIC in 0.13µm running at 10 Gbit/s per channel. For transmission a stan...
2 comments posted 20yrs
posted by quinn_the_esquimo
2 comments posted 20yrs posted by quinn_the_esquimo

Help with Winscope/Voltage things

Hello everyone You may remember me from before well I've done the practical now and I've some results. I decided to use...
16 comments posted 20yrs
posted by black
16 comments posted 20yrs posted by black

Aquarium Brain Project

Hi to all admin and membres of this forum! I'm new here and I'm from Mexico then sorry for my baaad english I'm trying...
1 comments posted 20yrs
posted by blackmarkx
1 comments posted 20yrs posted by blackmarkx

whatis the (fr32&br26)smt?

hi friends I have two electronic components used in video device it seems to be a surface mount technology transistors....
1 comments posted 20yrs
posted by st_yar
1 comments posted 20yrs posted by st_yar