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Overunity Machines Forum



Joule Thief 101

Started by resonanceman, November 22, 2009, 10:18:06 PM

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topothemtn

#40
November 24, 2009, 11:06:21 PM
Can anyone tell me if a steel washer will work in place of a ferrite toroid?

Thanks.

WilbyInebriated

#41
November 24, 2009, 11:12:44 PM
a toroid is not required, you can wind the coils on a rusty nail if you want to. i would also add that you don't even need a core. i have a joule thief that uses a air core crystal radio coil, i have one where the coil is wound directly onto the body of transistor.
There is no news. There's the truth of the signal. What I see. And, there's the puppet theater...
the Parliament jesters foist on the somnambulant public.  - Mr. Universe

broli

#42
November 24, 2009, 11:17:17 PM
Quote from: WilbyInebriated on November 24, 2009, 11:12:44 PM
a toroid is not required, you can wind the coils on a rusty nail if you want to. i would also add that you don't even need a core. i have a joule thief that uses a air core crystal radio coil, i have one where the coil is wound directly onto the transistor itself.

Lol those are some extreme conditions, I was sort of starting to think that a JT needs luck. It makes my joulethief, was pretty close to generic specs, which didn't work look bad. But I'll retry when I have the exact parts and some electronic equipment.

topothemtn

#43
November 24, 2009, 11:18:35 PM
Thanks for that info. It will make making the coils alot easier.

Dick.

resonanceman

#44
November 24, 2009, 11:43:48 PM
I was planning on adding  a few more posts  but my internet connection  was so bad today I  had trouble  just  getting here to read .......  I  have several  double  posts  to deleate because  the page timed out after it uploaded the  page but before  it loaded  the new page .




gary


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