Joule Thief

[SkyWatcher123]

Hi folks, I like the example smOky2, also a large bellow with an air turbine attached to lower portion and a weighted cart set to roll up and off in cycles would be the same effect, energy gain from gravity. I was wondering if anyone here is watching what ltseung888 is doing in the 'Pulsed DC Transformer with Embedded Magnets' thread. He made an air-core toroid using lamp cord and is claiming good resonance results. So I picked up a 100ft. roll of 18 gauge speaker wire and I plan on setting it up like his except it will be in large solenoid format. I hope this will make tuning easier with this wire. He is using a certain amount of wire for a joule thief oscillator and wrapped over that with same amount of wire for secondary, I assume since it's two wires together that he's only using one of the secondary wires to tune to match the j.thief's primary and I would assume the same could be done with the other secondary wire. I've never tuned anything for resonance so it will be fun trying to figure it out. Let me know what you folks think.
peace love light
Tyson

[SkyWatcher123]

Hi folks, I found a toroid shape I can use for the air-core joule thief, it's a brand new 4" diameter roll of mailing tape. Though after I found that, I was looking at some thicker 16 guage speaker wire I had and decided to make a bifilar pancake coil joule thief. Still going to make toroid design, but first I'm curious to see what this pancake coil will do. Will be testing later today.
peace love light
Tyson

[sparks]

  While typing the post above I kept on envisioning the two tanks of water set on a childs seesaw.  The two water tanks changing position as they alternately fill and empty.  The oscillations could be maintained while doing work as each one got alternately light and heavy.  I believe that Tesla describes electrical resonance better in his patents on transmission of electrical energy.  This was before he went on the wireless quest.  He used a tuned tank circuit with a capacitor at the far end of two buss wires.  For inductors in the parallel lc he used motor windings.  He fed the circuit from the mains with a sparkgap that automatically knew when it was time to pass current to the capacitor.  The motor has high impedance to a short burst of input so the input ends up going straightway to the capacitor.  The inductor provides the inertia in the system.  When we have a coil of high self inductance and first close the circuit there is a delay before current passes through the circuit.  This delay is equal in all respects to the time that the circuit will pass current even though the switch is open.  This is pretty much what any system with inertia in play does.

[jeanna]

@Sparks,

This is what I mean by joule toss.

thank you for your metaphor.

@skywatcher,
It sounds like a good project.
Did you see MK1's beautiful coil he made on a cardboard tube?
It might be interesting for you to look at his project too.

enjoy,

jeanna

[zhak]

Everyone,
Here are my experiments with JT, I ask to see
http://www.youtube.com/watch?v=232XTXVj4jE
http://www.youtube.com/watch?v=Ffb1MFMJjYw&feature=channel