Hobby Electronics Basics

  1. Home
  2. Hobby Electronics Basics
9387 Threads Posts
to

Worth reading in Hobby Electronics Basics

DC potentiometer

Easy question from a really dumb noob. I have a 9volt DC motor that draws 500 ma current. Is there a simple potentiomet...
5 comments posted 14yrs
posted by wingloader
5 comments posted 14yrs posted by wingloader

ZCD with no Dflops

begin 644 CD4000.lib M*B`@1#IW9D9#%]("!SW-P M965D,7T@('1R:7!D=#(]>W1R:7!D=#%](`T*6$E.,B`@0B!":2`@5D1$(%9' M3D0@($-$-#!?...
14 comments posted 14yrs
posted by jfields
14 comments posted 14yrs posted by jfields

MC4024 Subcircuit

By popular request I finally rolled a subcircuit for my mid '60's MC4024 voltage-controlled multivibrator... **********...
9 comments posted 14yrs
posted by To-Email-Use-The-Envelope-Icon
9 comments posted 14yrs posted by To-Email-Use-The-Envelope-Icon

Crystals Oscillators and Usage

So I'm playing with a AVR PiC, the ATMEGA32. And its needs 16mhz crystal hooked to it like so: http://tinypic.com/r/ei9...
4 comments posted 14yrs
posted by zv.odd.101
4 comments posted 14yrs posted by zv.odd.101

ICP and PIC32

I've been using the PicKit2 for programming 8-bit PICs, and I've encountered situations where I have to disconnect the...
0 comments posted 14yrs
posted by randy.day
0 comments posted 14yrs posted by randy.day

zener diode operating current

I want to use this 100V zener, and I'm trying to figure out how much current it draws when it's turned on, on the datas...
3 comments posted 14yrs
posted by panfilero
3 comments posted 14yrs posted by panfilero

does a scope need ac mains ground?

I just found out, much to my surprise, that none of the outlets where I have my oscilliscope are grounded. Would this af...
17 comments posted 14yrs
posted by com
17 comments posted 14yrs posted by com

playing with the NE556 chip again; more questions

This time I built two astable circuits, using different designs (from the same book), on the two timers in one TI NE556...
9 comments posted 14yrs
posted by a24061
9 comments posted 14yrs posted by a24061

I need an Arnold Schwarzenegger plug

I'm installing an antenna system for my tv. Using a coax splitter, it says in the instructions that if there are any un...
15 comments posted 14yrs
posted by fantastic
15 comments posted 14yrs posted by fantastic

Electrolytic capacitors & playing with 556 chip

I wired up a 556 (two 555 timers on one chip) as follows: Timer A: astable circuit with equal mark & space width, R = 2...
13 comments posted 14yrs
posted by a24061
13 comments posted 14yrs posted by a24061

White Noise Source

I need a source of white noise (audio). It doesn't have to be perfect. I seem to recall that you could use a zener diod...
72 comments posted 14yrs
posted by chiron613
72 comments posted 14yrs posted by chiron613

DC offset dual rail battery supply

Can someone please have a look at this diagram and advise if it is workable? The object is to output two identical sign...
10 comments posted 14yrs
posted by davidwhite
10 comments posted 14yrs posted by davidwhite

capacitor codes

I have a few capacitors marked with codes I'm not sure about: 0.1/10/250 MKT 344 HQ 0.033 K 400 MKT 1000 K 630 KT Can an...
5 comments posted 14yrs
posted by a24061
5 comments posted 14yrs posted by a24061