Joule Thief

[nievesoliveras]

@jeanna

The correct shared pole is the negative pole!!

Check this diagram.

Jesus

[jeanna]

Thank you Jesus!
That is perfect.

I made a movie of the earthquake spikes.
Here it is:
http://www.youtube.com/watch?v=NJoPspdYyYU
Now, I will go and see if it came out all right!

jeanna

[nievesoliveras]

@all

If you want to make a joule thief like an ignition coil the proportion is 1:110.

That means if you want to make a 5T joule thief you need the part after the center tap to be 550T.

Jesus

[jeanna]

I  tried  hooking it  up  the same way to  a couple " normal" JT coils   they didn't seem  powerful enough ......  the ignition coil  choked them .

gary

Gary,
I am not sure how you hooked them up to a joule thief?

I am thinking the ig coil IS the toroid of the joule thief.

I just don't know how to preserve the transistor.
Someone on another thread said to put a cap in parallel with it and I guess if I put a cap across the C-E it might help, or just across the base resistor. I don't want to go frying transistors without a better solution in mind.

Any ideas?

jeanna

[innovation_station]

jesus  your a great guy !! 

power day tommorow   



i just guessing were getting over 1000v out of the ign coil ..  if so perfect for spark gaps..


and i also wondered 1 of each ...  neg common and pos common at the same time in sync ...

anyone tryed it yet? 

im gonna have to find me a few more ign coils and throw togather the IST SARK PLUG UNIT 

yikes i got tonnes of building to do ...  i cant wate... 

ist!

almost all moved ...  then im a build ... 

btw my bro stoped by today and said he has a bday gift for me ...  boy o boy .....  i can pick them up in 10 days...    after i have them i will tell you what they are ...