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Re: Tiny TCs
Original poster: "Jerry Lawson by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jerrylawson-at-hotmail-dot-com>
I have a tiny TC with the primary and secondary coil wound on the same 2"
pvc pipe. Both coils are wound with #24 wire. The primary is wound 1/4"
below the secondary with 5 turns of wire. It is powered by one 10K 30 ma
neon and the output is 12" sparks. It has an RQ spark gap. The toroid is a
brass door knob.
>From: "Tesla list" <tesla-at-pupman-dot-com>
>Subject: Tiny TCs
>Date: Sat, 07 Apr 2001 14:47:19 -0600
>Original poster: "Steve & Jackie Young by way of Terry Fritz
>For experimenting with triggered spark gaps and other such research, at
>least initially, one doesn't need large, loud arcs from large heavy TCs to
>take the necessary measurements and draw conclusions. And for easily
>transported and quickly set up demos, tiny TCs should have application.
>What is the list's experience with tiny TCs? I am talking about
>wound with 30 gauge or smaller wire and less than two inches in diameter.
>(Smaller than Brian Basura's good performing mini-twin.)
>For example, consider ordinary 1" PVC (1.3 inch OD) wound a length of 6.5
>inch with #36 for about 1,200 turns. Primary 15 turns of #10 wire (.11
>diameter) spaced the same with 3.3 inch inside radius. Toroid about 2" by
>6". Resonates about 1 mHz. I am assuming enough primary power to operate
>just under the secondary flashover or racing spark condition. (And I am
>assuming being able to successfully wind the secondary with such small
>If TCs scale down OK and still maintain efficiency, seems like one could
>still get a 10 inch discharge from it, or perhaps 18 inches from bipolar
>What has been your experience with miniature TCs?
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