Joule Thief

[crowclaw]

Sorry about the two images
Scope shot showing approx 26 volts from 1.5v batt.

[stprue]

Bottled JT

NICE...alcohol and experimentation!

Did you drink the bottle beforehand?  lol

[sparks]

      Why dont you just go out and disconnect one spark plug wire from your engine.  Series connect a couple of thousand leds and use it for a new headlamp.  As you raise the rpm of your motor the lights should get brighter because the leds will be blinking alot faster than the eye can detect.  This is driving a load in a nonlinear manner.  You can also use a tv set flyback transformer and connect the lead going to the picture tube to one end of the leds and the other end to an aluminum plate insulated from ground.  The problem you will encounter in both situations is making sure there isnt an energy breakout before you get to the aluminum plate or the spark plug.  This would mess up the voltage divide circuitry produced by the series connected leds. 

[stprue]

Sparks why dont you try that!  and then actually post some pics and data!

[jadaro2600]

@jadaro

I am also looking into it , i just found in my scrap a tl494
(http://focus.ti.com/docs/prod/folders/print/tl494.html)
i can't believe how nice it is , i can also get the locally at around 3 dollars . In a PC psu.

They have two counters, it works for almost any configuration Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull. pwm included in one chip.

I also found a irf840 mosfet . This should be a good start , but i will need a pair .(tutorial on mosfet http://www.youtube.com/watch?v=Te5YYVZiOKs)

I also know of watson blog , he made some joule thief , with 2n7000 mosfet.
http://watsonseblog.blogspot.com/2009/01/joule-thief-fet-only-is-topic.html.

This will make a great tool to test coils.

I actually have some of those parts on the way, I'll be careful with them though, someone hinted that they blow easily.

I'm just trying to reduce power consumption and maximize peak to peak voltages.