Stubblefield coils (bifilar) and speculations

[timmy1729]

Gary:

Yes, for this particular Fuji circuit (there are several variations) it is supposed to be about 300, 350, or 400 volts.  I have read all of the above at one time or another.  I have no way to test except by the load it powers. (300 leds and counting, grin)  I have fried leds before and it is not pretty. (smells too)

Bill

Yeah, I fried a transistor and LED a few weeks ago. Wasn't pretty.

[Pirate88179]

@ All:

Just a note to say that when the ground thaws, I will be testing the EB with supercaps and the joule thief circuits.  Might even toss in a solar cell or 3.

Bill

[forest]

I think :

1 Bifilar coils may work if properly build as a step down frequency transformers
2. Stubblefield coils must be placed in orientation with Earth magnetic field

[Pirate88179]

@ Forest:

We have seen experimentally that it does make a difference where you put any earth battery.  Alignment is crucial to top performance.  These are great little devices.

Bill

[Michelinho]

Hi everyone,

Spring is here and soon the soil will be ready to start new cells or revive the old ones. I just found a site that sells cotton wrapped copper electrical wire by the foot or spool to start the season anew.

http://www.sundialwire.com/index.aspx

My son-in-law found a guy that has a few rolls here and he will buy all that he has. I just hope it is soon as I am ready for a few wraps.

Take care,

Michel