Joule Thief

[kooler]

jeanna thanks
i just put a bigger 1/2 watt pot on it and it fix it
what i was telling you yesterday was on a secondary wind one wire ex. 20 turns right handed
then wind a second wire 20 turns left handed and connect the end of the 1st wire back to the start of the 2nd wire..... and check the leads with a scope.. haha .. there both putting out negative pulses.
these two wires are kind of bifilar but wound in a different directions

oh this toroid becomes silent once i hit highest voltage.. weird

[Pirate88179]

Kooler:

So does mine. (Based on the Jeanna Light circuit)

Bill

[innovation_station]

o bill please do not delete my post


I HAVE A HUGE THING TO SHARE .... 


I LEFT MY UNIT OFF ... THE 12 V GEL ...  JUST WENT INTO SELF OSCOCLATION ...  WOW OMG!


W

I MADE A VIDEO   MR MAGS ...  YOU WILL APRECIATE IT !   AGIN IM DEEPLY SORRY ! 

I WISH I WOULD HAVE REVIEWED MY PMS LOL  EARLYER ... 

[kooler]

bill
you think it is a permeability issue
that it get quieter the high the khz

i just put 34 turns on it and it put out 139 volts dc thru a bridge (dmm)

[jeanna]

jeanna thanks
i just put a bigger 1/2 watt pot on it and it fix it
...
oh this toroid becomes silent once i hit highest voltage.. weird

Good.

It got too high frequency for your human ears to hear.
EDIT: or low... the volts going up on a jt means the frequency is going down, so then it isn't too much of a scream.
end edit.
It happens a lot!   

btw,  I tried all the possible ways to make the turns and the only one that worked was the first one, but it was the same output as a straight solenoid. Except the wave was much nicer.
Thing is, I do not know if a lightbulb cares. It seems not.

Keep at it.
I know you will,

jeanna