Re: Primary design for an Inherited TC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>

Hi Dan,

This sounds very similar to my 9/30 coil at:

http://hot-streamer-dot-com/TeslaCoils/MyCoils/SmallCoil/SmallCoil.htm

I am using an MMC and rotary gap but the ideas should be pretty similar for 
yours too.

http://hot-streamer-dot-com/TeslaCoils/MyCoils/SmallCoil/small_coil2.jpg

Cheers,

         Terry


At 11:48 AM 1/20/2003 -0800, you wrote:
>Hi Folks,
>I've inherited a non-working TC from the Miami Space &
>Science museum. It  had a 9/30 nst, with two glass
>plates about 2" apart, a horid gap and a helical
>primary with crappy stranded wire around a plastic
>planter bucket.
>
>The secondary looks useable though. This is one a guy
>tried to make a while back and was sitting in the
>corner for a long time. I actually went down to see
>DC's coil and noticed this one sitting in a dark
>corner.
>
>I pretty much know what all to do, but as far as
>primaries go, what would you guys recommend for this
>4"X32" primary? It's really tall. Yep that's 32" of
>windings, approx. #22 magnet wire. I don't know the
>quality of the magnet wire so I was thinking of using
>a 15/30 to be safe rather than a 15/60. I'm designing
>the primary now but wanted to hear from the experts.
>If you think it's ok I could use 2 X 15/30, I have
>them.
>
>PROPOSED SPECS:
>15/30 nst
>alum. duct toroid
>SW bucket cap
>Static gap
>Terry's nst circ.
>PFC
>and line filter (thanks John F.)
>
>Thank you
>Dan-Ft. Lauderdale