Hi All

I decided to create a separate thread for the Fuji mod, hope you all don't mind.

http://www.overunity.com/index.php?topic=6932.0;topicseen
http://www.overunity.com/index.php?topic=6933.0;topicseen
http://www.overunity.com/index.php?topic=6934.0;topicseen

I hope that we can all come together and create a CFL driver circuit that everyone can create and use

Regards,
Paul

@ Goat:

I think we have done this already if you read the many previous posts here.  All of mine work, and Als, and Jeanna's, etc.  Al even has a nice package designed for his Fuji circuits. (I know you know this already)

Feel free to make whatever topics you want, I just don't see the point is all.  This topic has been about (give or take at different times) 50% Fuji and 50% torroid JT's.  So, speaking of the Fuji here is not hijacking this topic at all.  At least, not in my opinion.  ***EDIT***  Why did you create 3 topics of the same name?

Bill

Hi guys!  Finally got something to make videos on - Soory in advance for extremely lame camera work!

Heres my vid of a joule thief running 48 LEDs and a tiny motor.  Its using an AA battery, a germanium diode instead of the base resistor (it seemed like the LEDs were brighter with the diode) and 2 toroids in series.  One typical little J.thief toroid (half an inch) and one big old (audio?) transformer toroid.  It dont seem to work without the second massive toroid - I can only get the LEDs lit, or the motor running, but not both.

http://www.youtube.com/watch?v=uagQdFdJjeE

Still No joy with any CFLs - even when I try ''cheating'' and using a 4.5 V battery.  Ive seen Pirates Fuji mod, and Slayers BIG thief lighting CFLs and its making me green with envy!!!!

Great work guys - lets keep breaking those personal challenges!!!!  I reckon thats what this site is all about 

Quote from: jadaro2600 on March 02, 2009, 03:48:41 AM
I put a 1N914 switching diode in its place and noticed something unusual ...i took an amp reading on it, using the diode and the milliamps being used went from 9.8 dropping quickly down to 2.3 with no noticeable difference in LED brightness.

you'll have to note though that my resistor is up front of the current carrying loop...  this seems like a frivolous place to put a resistor or a diode, but the effects are now even more unusual!

Ooh someone else who puts crucial components way up front in the loop instead of their more logical place
I've also tried with the transistor way up front, theat seems to work too. But I must admit that still makes
more sense to me than your moving the resistor to the front... lol
Hey, but you say you're getting good results? Must try that variation then!

Btw, can you tell me how you hooked that diode up? You said you replaced the resistor with a switching diode...
Are you now talking about the "classic JT" setup where the resistor is in front of the transistor control pin,
or is this already the variation where the resistor is up front in the current loop, and then instead of a resistor
you used the diode? Does that mean the transistor is still in the circuit?

I was actually thinking of replacing the transistor itseld with a blinking LED or a switching diode...
...but I haven't decided yet.

@electrime/GeneralJim: lol yeah well I guess we were just on the same wavelength there eh?
I think your remark on possibly using a neon is interesting...
Basically we seem to be coming up with different yet quite similar ways to produce a burst
of charge... Zener could work, neon could work, transistor does work...
In fact, I just realised that the neon might be closest to Tesla's pulse generator, which
was the simple spark gap.
But in view of the total absence of any replies on my Tesla toroidal "TPU" post a few pages
ago, I suppose there is hardly any interest in comparing it to Tesla's toroidal transformer,
so I shall try to stop mentioning it.
It is weird though, because that design looks so much like a JT with double secondary that it's
just uncanny.

@Goat: I also have no idea why your modded camera board won't light your CFL...
How many watts is the CFL?
Are you trying to light the CFL tube itself, or are you trying to light the entire CFL lamp from
the normal/standard socket connector? If you've got the glass tube connected to the camera
board it should work fine...
It can't really be the camera board now, can it guys?
Well I suppose it could... But I've tried tree different camera boards now, all are AA, all
are very similar except for a few slight variations in components, but they all had the same
300V cap and the same neon, and they all light up both my small 4W fluorescent tube
as well as my 8W spiral tubed CFL...
So I'm sorry to say I have no clue why yours doesn't want to work.

you could always try to build a JT from scratch to light your CFL...
I think Slayer007 (well Slayersomething anyways) posted a fairly nice JT about oh 100 pages
back or so, which he used/uses to light up a fluorescent tube. He posted a full schematic.
That would mean winding your own transformer and soldering the components together,
instead of just cannibalising a camera and ripping some unneeded components off the board,
but it would also be a completely self-made JT that powerd a CFL, and there's not too many
people who have done that... most just use the camera board mod for CFLs.
So ehm... yeah, basically there already IS a JT circuit that can run CFLs and fluorescent tubes.

@IST: have you managed to finish your "6pack" JT MK2 variation yet?
If so, I can't wait to hear how well it performs. Do you have a datalogger or something, so that
you can hook the batteries to the logger and have your pc compile a nice graph of the battery
charges for the entire duration of your test run?
That way it would be easy to see how much the feed batteries put in and how much the
receiving batteries actually gain. (Yeah, I'm still hoping for an OU JT battery charger
and I can tell you it's damn hard to type with your fingers crossed )
By the way, I didn't really see on the pics, does that setup include LEDs too?
That's be really cool, a battery charging over unity JT night light.   

@the rest: keep up the good work guys! (and gals in case Jeanna is reading this )

best regards,
Koen

@koen1

I did have a reply for you on the tesla pat , i made a 2 jt to exact coil specs , it work great, and i have learned a lot for it.

And for the diode , you just need to replace the base resistor , with it , i have used zeners , swithching diodes and even a led , they all worked. My 3 volt zener is giving me the same output has a well tuned resistor for the base. the real question is is it lowering the consumption of the jt.

Keep the good work!

Mark