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Kip's DC Tesla Coil



Kip, (not a list subscriber) replies to some comments from the list I
forwarded to him about his DC Tesla Coil as presented on
http://www.altair-dot-org/tesla.htm

<snip>

> ----------
> From: 	Kip Turner[SMTP:kip-at-mindspring-dot-com]
> Sent: 	Monday, October 26, 1998 11:19
> To: 	will.e.payne-at-lmco-dot-com
> Subject: 	My tesla coil
> 
> Will,
> 
> I have to present some arguments and reasons for the design of my
> Tesla coil.
> 
> We were two high school boys and it was necessary to keep the cost
> to approximately zero dollars.
> 
> The 3B24's were available  as WWII surplus at a very low price.
> 
> Using a charging choke would have greatly exceeded the voltage rating
> on the capacitor we had.  And it would offer no advantage, if we
> went to a higher voltage, lower capacitance. It would also increase the
> time to charge the capacitor if it held more energy. We were near the
> capacitor's rating.
> 
> Since this design was using coupled tuned circuit, the total spark energy
> available is related to the stored joules and not the voltage at which
> it was stored.  The other would be more complicated and more expensive
> and provide no gain....unless a capacitor with more energy storage was
> available for the higher voltage.
> 
> Standard, high voltage rectifier, filament transformers of this period,
> designed for medium power radio transmitter power supplies were readily
> available and could operate at this level ( near ther "test" rating ).
> 
> 
>  73,
> 
>    Kip
>