Hobby Electronics Basics

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The most simple amplifier

Hi Guys I'm trying to experiment with the most simple amplifier. (A transistor, couple of resistors and maybe one or tw...
13 comments posted 20yrs
posted by ceauke
13 comments posted 20yrs posted by ceauke

Phase shift

Hello, I was wandering if the following is possible. I have a huge voltage 3kvolt, when is passed through a coil my vol...
6 comments posted 20yrs
posted by lerameur
6 comments posted 20yrs posted by lerameur

Wall of RAM

A while back on ebay I was just looking around and came upon 50,000 LEDs. Ebay is a dangerous place, I can understand h...
40 comments posted 20yrs
posted by grant
40 comments posted 20yrs posted by grant

rising-falling edges

In my projects with flip flops I notice my led's have tiny off's or on's that are out of rythm with the function or cou...
3 comments posted 20yrs
posted by bborb
3 comments posted 20yrs posted by bborb

Electronic Glue

Can anyone tell me if there is a glue that I can use to attach 18 or 20 gauge wire to brass, bronze, or nickel for a sol...
3 comments posted 20yrs
posted by Searcher7
3 comments posted 20yrs posted by Searcher7

input loading

What exactly is input loading? I am reading my way through the art of electronics and he mentions then starting on abou...
4 comments posted 20yrs
posted by Abstract.Dissonance.hotmail.co
4 comments posted 20yrs posted by Abstract.Dissonance.hotmail.co

Panasonic DECT KX-TCD150 schematic need !

I am looking for the schematic of Panasonic DECT phone KX-TCD150 ( base station - ring detector ) Thanks to all in advan...
3 comments posted 20yrs
posted by dautm
3 comments posted 20yrs posted by dautm

removing supermagnets

I am trying to get the super magnets out of an old hard drive. I have gotten the hard drive apart and found two super m...
6 comments posted 20yrs
posted by ngdbud
6 comments posted 20yrs posted by ngdbud

capacitor discharge rate

Is there a way to calculate the amps a capacitor dischages through a short? I have a "spot welder" made up of five larg...
4 comments posted 20yrs
posted by jbasi
4 comments posted 20yrs posted by jbasi

DC Power Supply

I was sent a power supply for a unit that requires 9 volts DC with 180ma. The power supply says input 220v AC, not 110-...
2 comments posted 20yrs
posted by servozoom
2 comments posted 20yrs posted by servozoom

Create a PCB from an image

I have scans of an unpopulated PC circuit board that I would like to reproduce using a company that requires Gerber fil...
20 comments posted 20yrs
posted by grant
20 comments posted 20yrs posted by grant

So what are you working on right now?

Just curious to see what kinds of projects more skilled people are working on. No need to go into detail or give away a...
8 comments posted 20yrs
posted by blahbleh666
8 comments posted 20yrs posted by blahbleh666

Magazine Recommendations

Hello... Seems this question comes up every now and again. I know this from searching the groogle gloops archives. Prob...
5 comments posted 20yrs
posted by blahbleh666
5 comments posted 20yrs posted by blahbleh666