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- To: Tesla List <tesla-at-pupman-dot-com>
- Subject: Re: Optimum coil configuration
- From: tesla-at-america-dot-com (Bob Schumann)
- Date: Tue, 11 Mar 1997 06:07:39 -0500 (EST)
Stan, I don't think you can fully charge your .025 cap with your input power of 15kv-at-60ma. It seems to me a .01 would be much better suited to the application. This would allow you to tune further out on the primary as well, therefore creating a larger field to encompass the secondary and have better energy transfer. As for a shorter secondary, that would take away inductance (L) from the secondary and you would compensate by reducing the inductance in the primary via less turns for tuning. I would go with a smaller primary cap. Bob Schumann > >Hi y'all, > I have been operating the following setup for a while now. Because >of business trips, winter, laziness and various personal disasters, I >haven't gotten to do as much experimenting as I'd like. Lately, though I >find that I'm having a bit more time to play (and it's been warmer) >so I got to wondering about the consistently poor (in my view) performance >that I've gotten from my coil. > > The stats are: > 2 15-at-30 neons > around 50 feet of 3/8" copper, 3/8" apart for primary > Primary is sometimes inclined for better performance > a CP .025 uF capacitor > 6.5" X 27.25" secondary > various toroidal terminals > > The system usual tunes at about 8.25 turns or so. The best >performance to date has been about 22", from the largest toroid that I >have, about 30" X 3 made from drain duct for trailers. > Would I get better performance given the power limitations that I >have from a shorter secondary? > Would a shorter secondary cause the tuning to move to less turns >or more? > > >Stan Harle >Alamogordo, NM > > > > >
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