Joule Thief

[Mk1]

@stprue

Nice looking coil , will you be putting a second pickup coil going the other way , 180 phase ?

Keep it up , nice work

Mark

[stprue]

Nice pix as always.
Is that 800v output? or 306v?

So, let me guess. You made the primary in the x2 style looks great.
for the pickup you started one way 40 turns, then you crossed over the center and continued but this time where you wound lets say over toward the center on the first half, now, on the opposite side winding in the opposite direction, you are now winding from the center under and then on the outside up and over the top.

Is that right?
I am not good with this magnetic direction thing, but I think that means the mag field from the inside of the toroid is not being changed by the pickup.
Yes?

thanks,

jeanna

I wish it was 800...but no it was 306 still not too bad for a small coil.  The rest of what you said is perfectly accurate.  This was a proof of concept....not I will make the same thing with 2 pickups.  If I get better results then I will make/rework the biggo.

I think we should all use the tems base/collector coils instead of primary.  It really makes everything fool proof especially for newbies.

[stprue]

@stprue

Nice looking coil , will you be putting a second pickup coil going the other way , 180 phase ?

Keep it up , nice work

Mark

My next one will be to add a second pickup on one of these little goldmine coils.  If I get better results then I will make a biggo out of it....if not then I will make a biggo like this little one you see. 

and if that doesn't work then I will make something else...hehe

One thing I still need to try is a few different transistors on this I have like 6 or 7 different kinds and all will give different results.  Thats the fun in electroincs though..so many different ways to do somethings and everything needs to be specifically tuned...well with JT's anyway.

[stprue]

new goal.....

get over 1000v on a goldmine!

[stprue]

@Pirate

How are things progressing on the new transformer EB's looks like ground amplification on input voltage! Tesla???