New Jewel Thief "Resonate LCR Circuit" Much less energy draw....

[sirmikey1]

@Jadaro,  Both sides of the neon will light. CQ recommended going to the drug store and asking for some of the throw-away cameras.  I got two.  I've also got several junk transformers from televisions and monitors.  I used a chain of 1meg resistors in series to find joy, and to escape the heat...

SM

[sirmikey1]

Garden Lights!
Interesting Application of Joule Thief (self charging).
http://www.youtube.com/watch?v=_ss0sr_nlwY

[jeanna]

. CQ recommended going to the drug store and asking for some of the throw-away cameras.  I got two. 

There is a difference, and we found that the fuji camera with the black push button which uses the AA and [NOT the green slider which uses the AAA] is the best one to use.

the pictures are in the schematics thread Bill started to make it easier for folks to get started a year ago (!)

jeanna

[jadaro2600]

Does anyone have a clinical analysis of the ratios of turns, diameters, or otherwise coreless indications of how to maximize voltage EMF on a collapsing magnetic field vs the frequency.

All things relative of course.

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I'm trying to determine the correct frequency for maximum yield of a given pulsing magnetic moment ...I want to design the core to use so little current, that it becomes voltage oriented.

This would allow the device to perform for extended periods of time.

*bump

[jeanna]

I think your question sounds very complicated.
If you make thin hi voltage spikes on the pick up secondary, you will be using very little amps.
That is not the amps draw from the battery, of course, but the secondary can just produce those spikes all day long, so long as you get the transistor to turn on.
So, if you can use a germanium transistor and restrict the base with a high value resistor, you are good to go.

I do not know what you are looking for in figures, but you might be able to make a few tests and inform all the rest of us.

jeanna