Joule Thief

[stprue]

@Mk1

Here is the Mk x2 (I think) that I have made the gauge for the JT windings are 22mag and the primary and secondary are 24 from an old component I took apart.  Now that I know it works as you stated I take off the 24 and use 30mag.  I'm assuming that this is what will give me more voltage!  Do you have any advice to make it better other then what I will be doing to it?

1 inch toroid goldmine

Wire as seen above
      JT windings 3-3 on each side
      Primary & Secondary windings 14 each and on each side

Rectifiers are 1000v @ 1 amp

5K POT

2N3055 power transistor

P.S. I love how it will light leds regardless of the polarity!  Does this mean it self adjusts its waveform to the load being used?

[stprue]

@Mk1

It's funny I just readjusted the wiring and now I'm getting 150+ recitified DC Volts.

[Mk1]

@stprue

Nice work!

Ok first depending on the toroid the turns on the jt side could be better with only 2 turns per coil per sides, leaving more room for the pickup coils , you should test it before changing the pickup coils.

Then try to fit as many turns of 30 gauge going on way make it tight , after that going back down try fitting the turns between
the turns of the first layer , this will make sure you are getting as much on it as you can, you theoretically should have as many turns going down. Also it will make it nice and tight, the wires will cross on the inside of the toroid, not on the sides.

Keep it up , also check the value the pot is set on , data reference .

Mark

edit

The bread board is not to good with wires that are smaller then 22 gauge i usually solder some 22 on the end so it doesn't have connection issue when using the board.

150 real nice , turn the pot really slowly it may get you more !

[stprue]

@Mk1

Thanks for the compliment and thanks for the advice, I will try the JT with 2 turns.  How many turns with 30 gauge do you think I could get with a 1 inch toroid? 

I'm planing on buying some 3.38 inch (or close to it) torrids from all electronics soon.  That will make for some interesting experiments.

[stprue]

@Mk1

I forgot to ask you, I have realized the you can make a single crossover or a double when re-winding bak down.  How are yours done because the one you see in the pic's I just put up has both a single on one side and a double on the other.  I ask because even though it can light an led on either side, one of the side is pretty dim.  Do you know what's happening?