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First light, and a poor performance
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From: Mark Finnis [SMTP:mefinnis-at-medicine.adelaide.edu.au]
Sent: Monday, August 24, 1998 4:28 AM
To: Tesla List
Subject: Re: First light, and a poor performance
At 11:41 PM 23/08/98 -0500, Steve Rodway wrote:
>Hi all,
> Just fired up my new TC for the first time tonight, and
>unfortunately the output fell somewhat short of what I was expecting,
>I'd be very grateful if anyone could make a few suggestions about how to
>improve it.
> The system specs are as follows.
> Power supply, 11 kV (rms) polepig with resistive ballast made of 4Kw
>of heating elements filter consists of 2x20mH inductors and a 1.7nF
>bypass cap. Main tank capacitor is 7.42nF and the primary coil is a 30
>degree inverse conical with 12 turns of 1 mm wire 7 mm apart. The
>primary is spaced 20 mm from the secondary and the bottom turn of each
>coil line up. The gap is 6x0.5mm tungsten carbide static gaps.
> The secondary is 4" dia and wound to 16.5" with 0.56mm enameled
>wire, there are around 660 turns giving an inductance of 11.4mH and a
>capacitance of around 8pF.
Steve, I am a complete novice compared to various personalities on this
list, but why on earth would you choose a pole-pig to power such a small
coil ??
Your supply would be better suited to my proposed next coil at 11" x 40+"
Mark
Tesla Page <http://www.cobweb-dot-com.au/~dkfinnis>