TPU - Toroidal Power Unit - Replication attempts (With Iron Wire)

[Liberty]

If one were going to cut (iron) wire to (magnetic) wave length, what do you suppose the length of it would be?  I noticed on one of the posts, that a patent showed using a frequency of 21 mhz.  If we use this frequency, and go with a multiple of the wave length, I think that 11.73 feet would be a good ball park area to start.  (Formula is 984 / Freq. in mhz = length in feet) (If I remember correctly).

Has anyone else tried a particular length of iron wire?  Any successes or learned lessons on attempts?  Give your best guess as to what the length of wire should be to put us in the ball park...

Liberty

[Esa Maunu]

Here is a Excel table to calculate with different frequencies.

http://www.kolumbus.fi/esa.maunu/

Esa

[tbird]

Liberty,

my old "Tune in the World with Ham Radio" book says for a half-wave dipole length in feet = 468/f.  f is frequency in megahertz

[Liberty]

That being the case, a quarter wave antenna at 21 mhz would be about 11.14 feet.

Here is a web page that calculates this for you.

It is:  http://www.csgnetwork.com/freqwavelengthcalc.html

[HMM]

12 ft iron wire 4 in form loose winding
and a mag wire secondary should give you the kicks
I will post scope shots of the kick

Mike