Joule Thief

[stprue]

Even better.  Don't have or want paypal though!

[TinselKoala]

A dime apiece is about right for those diodes.

[totoalas]

Will  in60 work?

[jadaro2600]

I see this thread has grown quite extensive since I last posted anything...

I have been disassembling and recycling flat bed scanners and have acquired numerous 10 in CCFL bulbs in great shape. I am planning to construct a JTC to power them, since their starting voltages are around 600 to 1000 volts this should be interesting.  The original circuitry is quite like JTC to begin with, some of which use on 20ma at 9-18V DC input, they're mostly based on inverter circuits.  The interesting thing about these is their schematics contain a standard inverter circuit on the primary with a secondary isolated coil+CCFL+capacitor in series.  I think this might be an interesting endeavor.

Some of my previous circuits are built like this.
I have recently acquired several antique and low voltage drop diodes I am planning on using. The idea is for it to power a lamp, and thus be powered by far-gone batteries so that the remaining chemical energy in the batteries can be utilized, and thus not wasted prior to it's trip to the recycling station.

I would also like to create one using FETS or JFETs if at all possible, as this would allow a low waste oscillation to occur between respective terminal.  The utility involved would mean that the majority of energy is inductively transferred and radiated in the form of light.

I imagine the capacitor will dictate the effectiveness of this emission in that case.  Since these CCFL bulbs are rated a 2 watts, it may be interesting to note their effectiveness when the input is say, < 5ma, at < 3V.  That being said, I'm looking for the CCFL bulb's sweet spot.

If anyone has any experience using FETs rather than common NPN and PNP transistors, any input would be nice.

Also, despite their unconventional construction, I am wondering if anyone has attempted to create a JTC with a bitter electromagnetic core rather than a toroidal core.

[totoalas]

2 Yrs sgo ive tried scsnner lamps in my lab using same inverter direct 12v dc 
With slayer jt it eill light upp but ordinary 10 w lamps are brighter to use