Joule Thief

[kooler]

i am up for your Proposition 65 ... mk1
i'll try the making ac from the jt
cause i have had no luck making a working mag amp
2 months ago i worked many hours a week trying to get it to work
trying toroids and e-cores... all i got was a voltage loss... but i am not very smart on this stuff..
but will try for sure
i'm more of a experimenter than a mathematician...
nothing like ( trial and error )

[Mk1]

@kooler

Thank , lets start with the ac joule thief , i know how to get close to an ac signal, but it doesn't peek under the 0v line enough ...

We will most likely need a second transistor , not unlike the circuit Xee posted a while back.

Also we need to make sure we got the right toroid for the job , that will saturate , and a square hysteresis curve.

Also we need to find more info on those , usually info before October 1954
that is when the started to hide it.

I will go trough all the info i have stored over the years .

The reason i like the mag amp is that it needs a dc source , i think that dc element could be done by magnets . Not unlike SM toys...

Mark
 

Also for Mark , if you are still willing to give a scope , i think you should give it to Xee , I really need one my self , but giving it to Xee would help the cause...

[xee2]

Mk1 & kooler

I am doing other things now. But here is an AC circuit I posted quite a while ago. It is not really a JT since it uses capacitive feedback instead of inductive feedback.

[innovation_station]

look this is how you do  IT 4 REAL!

I JUST MADE A VIDEO IN THE DARK SO YOU CAN SEE

silly humans!

W

http://www.youtube.com/watch?v=NUptNKEno48

http://www.youtube.com/watch?v=EYZOBFySGaM

[xee2]

@ Mk1 & kooler

This circuit has high voltage AC output. Still at experimental stage.