Hobby Electronics Basics

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FSK RECEIVER CIRCUITS

ANY ONE HAVIN AN IDEA OF HOW TO MAKE A FSK RECEIVER CIRCUIT OF RANGE10-15METRES WITH REASONABLE ACCURACY?
2 comments posted 21yrs
posted by vaibhav.pareek
2 comments posted 21yrs posted by vaibhav.pareek

Signal source question

Think maybe it's been too long since I had to do this sort of thing but I can't get my head round it. Maybe a bit of ba...
3 comments posted 21yrs
posted by mjolinor
3 comments posted 21yrs posted by mjolinor

science project help: batteries and heating element

i want to heat a soldering tool with batteries - or something that could get as hot as a soldering tool. i have a 30w s...
15 comments posted 21yrs
posted by maxslomoff
15 comments posted 21yrs posted by maxslomoff

Diodes in parallel

Hi there, Can I increase the current rating of my psu which is having 1N4007 diode bridge rectifier, to 2amps by placin...
10 comments posted 21yrs
posted by nospam4u_jack
10 comments posted 21yrs posted by nospam4u_jack

one bit of memory?

In my ongoing quest to waste as much time as possible on my silly phone gadget (http://home.att.net/~Tom.Horsley/phonet...
6 comments posted 21yrs
posted by tom.horsley
6 comments posted 21yrs posted by tom.horsley

center tapped transformer

I made this dice pyramid that I want to light from inside with incandescent bulbs and I bought this radio shack 12.6 vo...
3 comments posted 21yrs
posted by sevenoutpinball
3 comments posted 21yrs posted by sevenoutpinball

Questions about transformer:

1. Is primary current means that the current pass through the primary coil or the current flow in the whole primary par...
1 comments posted 21yrs
posted by ucheng4
1 comments posted 21yrs posted by ucheng4

Definitive Guide To Electronics?

This is what sucks about moving: Losing things and having to start over. I seem to have lost my best electronics book (...
6 comments posted 21yrs
posted by blahbleh666
6 comments posted 21yrs posted by blahbleh666

TESLA COIL ~ First Fire-Up

We built our caps using the salt water/beer bottle trick. When we fired it up, the bottles started to glow purple. We n...
6 comments posted 21yrs
posted by Blackbeard_The_Great
6 comments posted 21yrs posted by Blackbeard_The_Great

Another odd circuit request

I got a bit of a weird circuit that I can't seem to find online. I need a circuit that will light up a row of LEDs unti...
13 comments posted 21yrs
posted by JCSforindependence
13 comments posted 21yrs posted by JCSforindependence

Are electronic parts edible ? ? ? ?

Because I often put the smaller parts into my mouth and I accidently swallowed a few parts in the last years and I wonde...
6 comments posted 21yrs
posted by pain_wheels
6 comments posted 21yrs posted by pain_wheels

mint flavored iPod

Looks easy to build, external battery pack for iPod in an Altoids tin -- just some batteries and connectors. I think a...
0 comments posted 21yrs
posted by sawlake-orange
0 comments posted 21yrs posted by sawlake-orange

LM386 Coupling Capacitor

I'm building an audio amplifier using an LM386. According to its datasheet, I should connect the LM386's output through...
2 comments posted 21yrs
posted by slave
2 comments posted 21yrs posted by slave