Joule Thief

[Mk1]

There you go.

[innovation_station]

nice dwg 

thank you for your time to do this ..  i have also 1 green 1 "

i will now build it ..

ist

[nievesoliveras]

@mk1

Thank you for the diagram!
The only question I have is the direction of winding of each individual coil.
Can you add an arrow pointing the direction it most be winded?

Thank you.

Jesus

[Mk1]

@jesus

This circuit is tuned for my toroid, meaning i have found it sweet spot just enough turns on the jt side 4 each, 3 and 5 lowers the voltage, when i perform the test i always re adjust the base resistor and check with the best resistor value for the jt coils that way i don't get confused by the bat voltage or different coil resistance, i tune it to its max , then get readings.

It gives me 4 times 76 volts dc  or 2 times 140 volts dc. improvement can be easily done since i still use the 2n3904 and original circuit.

A different toroid will need test and adjustment to perform has well.

Mark 

I bigger toroid can be used, test the jt coil first to get optimum results , then put as many turn on the pickup coil as you can.


60 inch is for a 1 inch toroid. And 22 mag wire , otherwise it won't fit.

[innovation_station]

here is a pic of mk2 green toroide

my first crack at it ...  i did it wrong....  the windings are correct but i left toooo much wire at the start of the coil as when i came back down i only made 7 turns not 10 for a total of 19

so i will REWIND IT ... BE SURE TO KEEP IT TIDY AND RIGHT ON OR 60 "   WILL NOT WORK OUT IN TURNS ...   

HERE IS THE PIC

IM GONNA DO STEP BY STEP PICS   after i fit it in properly ... 

ist