Joule Thief

[PaulLowrance]

MK1,

Are you referring to gadgets circuit or Jeanna? I'm trying to replicate gadgets circuit,

http://www.overunity.com/index.php?action=dlattach;topic=6123.0;attach=39124;image

Paul

[gadgetmall]

Jeanna,

I appreciate the help. I'm still studying your post, and will make the modifications to my drawing immediately after. I can post the image here, but did not want to do that until Gadget can confirm that my circuit is correct. It seemed bad to post circuits that are incorrect. I can fix some of them as i can exit  recent .

Paul

I asked Pirate in Our SSJT thread to Please replace the photo of My diagram . the cleaned up one is there . the cad program would not draw the bottom line any higher but i managed to move it up with the led . Kind of . Its a Standard Jt . with a secondary / with a small mod to the base of the transistor circuit . Its standard for me anyways

Gadget

[Mk1]

@Paul

The one you just posted .

Jeanna , doesn't make mistakes on something we all know by heart .

There is the basic jt then you put a secondary on it , you use the secondary power by making a bridge or single diode.

[broli]

Paul I corrected the circuit but I didn't add the LED because gadget's diagram seems to show this is wound separately around the toroid unless he corrects me.

[PaulLowrance]

Paul I corrected the circuit but I didn't add the LED because gadget's diagram seems to show this is wound separately around the toroid unless he corrects me.

Gadgets diagram shows something going on with the LED, maybe a 3rd winding as you suggest, but he has that LED in there somehow.

If he can describe it in detail, or perhaps show a video zoomed in, then I can draw the circuit for newcomers to see.

Paul