Re: A real quarter wave TC ?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "huil888" <huil888@xxxxxxxxxxxx>

Skip -

Did you really mean an 83 turn secondary, or an 830 turn secondary?

Not sure why you would even consider such a big, unwieldy coil that 
could only generate around 2 foot arcs (the distance from the top of 
the secondary to the primary). With only 24 inches between the 
high-voltage output and the primary, continuous primary strikes would 
be the probable result. With your 9 KV/120 ma NST, you could build a 
more conventional coil that would easily generate 4-5 foot arcs; why 
settle for 2 foot arcs?

(Also, somwthing may be wrong with your resonant frequency 
calculations; I get around 125 KHz, not 250 KHz, with the design 
parameters you provided.)

Regards,
Scott Hanson
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, April 01, 2007 7:15 PM
Subject: A real quarter wave TC ?


> Original poster: Skip Greiner <skipg@xxxxxxxxxxxxxxx>
>
> Hi All
> I am considering building a TC with the following specs and would 
> appreciate any comments
>
> Secondary: 83 turns #16 ga wire on a 45" diameter by 24" high form
> Primary: 2 turns of .375 copper tubing about 50" in diameter
> NST: 9000@120 ma
> Cap: .035
> Synchronous 4 pole RSG
> Note that both primary and secondary are resonant at about 250khz. 
> The secondary will not have a top load.
> Thanks in advance for all comments
> Skip