Dia. Mag. Alternator

[nievesoliveras]

The diode that its used most is the 1n4007.
One of the best transistor I have used is the Tip3055.
The resistor depends on what battery you use. A pot is recommended here.

PS
At the diode and the extra wire comming from the emitter is where you have the output Dc voltage.

Jesus

[z.monkey]

The diode that its used most is the 1n4007.
One of the best transistor I have used is the Tip3055.

Teh Joule Thief is what I call a boost converter.  Its an oscillating circuit that pumps up the voltage of a battery source.  I don't think using the DiaMag6 coils as the timing circuit inductor is the right way to apply this.  Use the DiaMag6 as the battery source.  Rectify and Filter the AC to DC.  Then apply it to teh Joule Thief.  This way teh Joule Thief retains its Bifilar inductor which is part of its timing circuit.

The operation of teh Joule Thief is dependent on the LRC timing circuit which is half of the Bifilar inductor, the resistor, and the capacitance (and threshold) of the gate on the 2N3055.  The voltage charges up the gate until it crosses the threshold, and then the transistor turns on and dumps current into the other side of the Bifilar winding.  This creates an output pulse, and resets the timing circuit simultaneously.  It is boosting voltage at the sacrifice of current.  The output power is probably a little less, but it makes batteries last longer because you are Pulse Width Modulating the output, and don't have a continuous drain on the battery.

So, yeah, it will increase the output voltage...

Edit:  Forgot to mention that the pulses coming out of the Bifilar winding will be very fast transients.  The 1N4007 diode is not nearly fast enough to catch these pulses.  Try using a Schottky Diode, ultrafast diode, 1N5817.  The waveform produced when the 2N3055 turns on and off is a square wave.  Square waves produce extremely high frequency harmonics, and if your diode is fast enough you can catch them.  Some peeps think this is ZPE...

[nievesoliveras]

Thank you @zmonkey for the explanation and the addition of the new better diode to the circuit.

Jesus

[z.monkey]

Hey Jesus,

I revised the circuit a little to make it more descriptive...

[nievesoliveras]

Thank you @zmonkey!

Jesus