AC from Joule Thief Secondary/pick-up

[Mk1]

@jeanna

My guess is you should try it for learning , this will dictate the flow of current in the pickup coil and , understanding all this is really important , if you what to evolve to making new others design and improvement . So i could tell you but that would not be really helpful , there are many details to those jt . Plus you have all the hardware to test , i have a brain and a multimeter , that can lead to false idea ex (lower resistance higher freq).

Mark



I also included a drawing of the mk pickup coil . 

[innovation_station]

yep same as i wound any ...

i took some  pics....   of the mk3 twisted litz coil showing  a few views of it

ist


there is 4 pictures

[xee2]

@ stprue

xee let me know if you figure out how to wind a mk style coil and please post some pics, I still don't think I'm doing it right!

I suggest you follow jeanna's instructions since she has made one and I have not. But this is a drawing I made when I was trying to understand how they were made and Mk1 said it was correct. Perhaps it will help. I think the intent is to split each coil of a normal JT in half and put each half on opposite sides of the toroid. But I am still confused myself.

To add more pickup coils, I think Mk1 replaces the single wire with a bifilar, trifilar, quadfilar, etc. with all of the pickup coil wires being wrapped on toroid together at one time.

[Mk1]

@ stprue

I suggest you follow jeanna's instructions since she has made one and I have not. But this is a drawing I made when I was trying to understand how they were made and Mk1 said it was correct. Perhaps it will help. I think the intent is to split each coil of a normal JT in half and put each half on opposite sides of the toroid. But I am still confused myself.

@stprue and xee

xee the picture you posted if for the improved version of the jt coil and also not complete , it should no be used for now.

Mark

[innovation_station]

the original can be configured in the same mannor as the improved unfinished unit.....   

as showen ... i twisted mine    easyer to wind ....... 





ist