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Overunity Machines Forum



Joule Thief

Started by Pirate88179, November 20, 2008, 03:07:58 AM

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resonanceman

#12805
February 25, 2010, 11:59:26 AM
I remember a little about someone  here  talking  about making cores with magnetite sand.........Fe304

Does  anyone  remember any results?

I have a few projects that will require  ferrite cores ......the prices I am finding  not good enough to be practical.

gary



sirmikey1

#12806
February 25, 2010, 01:32:02 PM
gary,
  Stiffler's choice caught my attention, adjustable/removable ferrite rod coil which is running other air core coils. 
SM

stprue

#12807
February 25, 2010, 01:52:11 PM
@Jonny

Your advice!

Thanks...Stew

;D

stprue

#12808
February 25, 2010, 03:45:36 PM
Backwards JT NEW/OLD

stprue

#12809
February 25, 2010, 03:47:33 PM
One thing I noticed is that the torriod doesnt seem to make that much of a difference.  My 3-5-15 works as well as my biggo with way more winds!  Lets see how long it lasts!!!

8)
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