Re: Using guts from BTC-3

Subject:  Re: Using guts from BTC-3
  Date:   Tue, 29 Apr 1997 18:31:24 -0400 (EDT)
  From:   richard hull <rhull-at-richmond.infi-dot-net>
    To:   Tesla List <tesla-at-pupman-dot-com>

At 10:32 AM 4/28/97 -0500, you wrote:
>Subject:  Re: Using guts from BTC-3
>  Date:   Mon, 28 Apr 1997 08:24:05 -0500
>  From:   David Huffman <huffman-at-FNAL.GOV>
>    To:   Tesla List <tesla-at-pupman-dot-com>
>Here is what I have. A small coil 2-7/8" dia secondary ~13" long topped
>with a 4"X15" dryer vent toroid, primary is 30deg spiral made with #10
>ground bus wire as you mention below, about 15 turns. I get somewhere
>around 20" streamers with a 12KV 60mA neon and 5 static gaps.
>The primary caps are not the best for TC, they are barium hockey pucks
>from a laser supply.
>Where on the performance chart does it go?


For a small first or second coil you aren't doing too bad.  The nice
toroid allowed you to cruise over the  winding length in spark output.
Overall, good job!  However, the caps you are using are indeed terrible
won't last in your Coil.  With better caps, you might expect a good deal
more from the system with this small a resonator.  It is feasible even
your small resonator to get 36" sparks from this system.  With a modest
resonator size increase, you might even get more with superior caps in

Richard Hull, TCBOR