Joule Thief

[maw2432]

@ Pirate

I just ask them for a few Fuji recycled cameras for school experiments.   They asked me how many did I want?  Not to be too greedy I said a hand full.   So the guy reached down in his barrel and pulled out 5 for me.   I figured that I could always go back for more if needed.  Although they were all Fuji cameras, there were 3 differnt kinds.   I will be taking them apart today and hope at least one is like yours. 

Bill

[WilbyInebriated]

@ timmy
nice job on your first jt!
i have a couple of those kodak boards you posted, some are identical, some vary slightly from yours. i will take a poke at them later and see what i can come up with.

[timmy1729]

@Wilby
Thanks! I really would just be happy turning it into a better Joule Thief than the one I made so that I might be able to do something with my humble little Earth Battery. So far, I have 1.046vdc to work with. I just don't know how to translate what is on my board into what is on everyone else's Fuji boards. From what I can see, I don't think there is even a resistor on this board. I think the two black things on the back are diodes. The capacitor is 330v and 120uf.

Side question:
I've got a bunch of caps and things from an old power supply and I was wondering if anyone knows of a way I can use them on a Joule Thief to improve it. I've got a few 200v 470uf, one that says 2.2k  100vcmc, and quite a few 10v  2200uf caps. There are also two or three big transformers(compared to the camera transformers anyway) on there and some transistors attached to big heat sinks. I also wound a big torroid last night with that stranded copper wire from some cat5 cable.

[Pirate88179]

Timmy:

On your earth battery, you didn't say how many amps (Milliamps) you were getting?  If you get your carbon rod, you should be seeing almost 2 vdc or so at maybe 15 mA's.  (It depends on a lot of variables)  I don't know if this is enough to "start" the simple JT circuit or not.  My ground is about frozen but when I get the chance, i will see if it will.  If it does, then I will try the Fuji AA modified circuit.  I am going to begin with the one like you made.  All of this testing and not enough time.

Bill

[AbbaRue]

@Pirate88179
Have you tried connecting 2 diodes as an AV plug to different parts of the board?
Maybe these camera units could function  as a cold electricity device as well.
All the components seem to be present that we fined in the Stiffler devices.
The same connection that lights a FL tube with one wire as you hold the other end in your hand,
theoretically should work as a cold electricity connection.
If these do work the same then we may have solved the Doctors biggest problem.
The resonance stops when you connect an external device to his units.