Re: The 1500t secondary myth (long)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Bert Pool <bert.tx@xxxxxxxxxxx>

-Phil LaBudde posted:

> [big snip]


>  I'm especially interested in how Richard Hull got such good performance 
> out of an exceptionally small resonator, and why nobody has duplicated this.

Phill, it has been duplicated.

When I built my best magnifier, I went to Richmond, looked at Hull's coil, 
measured, photographed, and stole Richard's methods like a pirate.  I 
pretty much duplicated Richard Hull's 11E magnifier, and I used the same 4" 
by 14" resonator he used, and got similar results.  But I have to admit my 
toroid configuration did not match the same degree of field shaping as 
Richard's and my coil eventually failed.  On extreme coils such as the 
11-E, electrostatic field shaping with the proper array of sheet metal 
cones and toroids is absolutely essential.

Want an efficient, amazing coil?  Here's the secret in one sentence: follow 
Richard's lead - outrageous top loads, very high voltage potential 
transformers, small capacitors, and most importantly, very good 8 point 
series rotary gaps.

Bert Pool