Joule Thief

[kooler]

@Kooler, In the pic I've went back a few pages and I cant figure the values of all the parts in your pic. It's very interesting. I assume that's a 110 to 24v wall pack transformer. You show the voltage on the cap, but not the cap value and the same for the part going to the xenon tube. Does it light the xenon continuously? I checked youtube and can't find it there either.

Thanks to all for your work & posts.

the cap on the base side is a cap out of a microwave it is 1uf 2400volt the diode to it is a old 1n4007..
the diode before the xenon bulb is a 12000v out of the microwave and the bulb is continuously flowing..
i got alot of videos to make but i have been in alot of pain lately so i have not been able to get down to my cellar..
but i will soon .. i got about 8-10 videos i need to make..
i'll post here as soon as i make it..

robbie

[LeaningGreen]

@Kooler,
Thank you very much for the reply and information.
Sorry to hear you are in such pain. I hope you feel better soon.

LG

[freepow]

HI EVERYONE...

Please look at attached diagram picture...

I want to use this circuit exactly as it is except without the reed switch, could I use a Joulethief instead of the reed switch so I can still pulse the circuit ?

If yes, then where would I connect a simple circuit to ?

Does anyone know  ?

[Pirate88179]

 A fellow just pm'd me with this link to a very in-depth book on electrical engineering:

http://www.archive.org/stream/theoreticalandp02blisgoog/theoreticalandp02blisgoog_djvu.txt

A lot of info there.

Bill

Thank you to Midknightoysters.

[LeaningGreen]

Thanks for posting Bill and to Midknightoysters for the pm to you.

That book can be viewed online with the pictures which are missing from the test version.
http://books.google.com/books?id=ny4KAAAAIAAJ&oe=UTF-8

On Jt's, I've found that when using the fuji transformer, changing the transistor and using a variable base bias resistor, they seem to have a limit.
It seems virtually impossible to fully light a cfl to full or greater than normal(dialing it back to normal) with the fuji transformer. The transformer seems to have a great wind ratio, but is current/voltage limited on the output. It works well with LED's. My suspicion is the transformers core mass is just to small for cfl's. The small core mass allows a higher frequency but at the same time puts a limiter on the output. Larger wire could help, but will it fit on that form at that ratio? Probably not.
So, this has dedicated my fujis to LED work.
Pirate88179 (Bill) has shown in many vids the LED capability.