Joule Thief

[xee2]

@ jeanna

Here are test results. I think I have said at least 3 times that this is not a good choice of circuits if you want to maximize time tube stays on so I do not understand why you wanted me to do this. The tube was still fairly bright at 9 hours (1.06 volts) and stayed fairly bright until about 0.8 volts. After that it started to dim quickly and was just glowing at 0.66 volts and went out at 0.64 volts.

[innovation_station]

btw it still will not lite the cfl worth crap ....


only if i hold it ..

so ill work at that later ..  i found a really thin ring magnet from a small disk drive motor or a vcr motor im not sure ...   but im a wind it like a mk2  with 1000 each side ...  see what that will do .. i will only have picup windings all 1 dirrection on this unit

ideas?



ist!

well i broke the ring getting it out ...   wonder if it will still work ...  it is magnetic tape ... 

[Mk1]

@ist

I got 24 bright led for 2 buck at rama .....

I also have to say that i get 850 volts dc from 80 turns , on my one inch toroid.

Mark

[xee2]

@ stprue

Xee can you post some close up's of your voltage doubler/JT set up again?

Thanks

I do not have any photos. Sorry. Perhaps gadgetmall does.

EDIT: I will make a drawing.

[resonanceman]

Tomorow  I  am planning on  seeing what  this  circuit  can do with a MOT and  a CFL

Setting  the caps in the same    configuration  with  a MOT JT  did not work at all .
It  gave a large increase in  output  with a LM  but it  has a large  decrease with the MOT


gary