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Primary Help
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From: D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Wednesday, June 03, 1998 4:35 PM
To: Tesla List
Subject: Re: Primary Help
to: Mike
Use some scrap 12 AWG house wiring and approx 24 turns. Tap as necessary
to find the best tuning point and then replace the wire with a neat setup
of 6 AWG or 1/4 inch copper tubing. First you need to find the correct
tuning point and sometimes it may require 12-14 turns or more. Experiment
with many turns laid out on some edge slotted scrap cardboard until you get
the correct number of turns. Use a flat spiral for this coil -- should
produce 12-14 inch long sparks as a minimum. In short, you need more turns
to hit resonance. Also, for tuning, use a sharp point off the toroid so
you can start breakdown earlier and see each change as you make turn
adjustments.
DR.RESONANCE-at-next-wave-dot-net
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-pupman-dot-com>
> Subject: Primary Help
> Date: Tuesday, June 02, 1998 10:02 PM
>
>
> ----------
> From: Michael Andrus [SMTP:andrus-at-ccountry-dot-net]
> Sent: Monday, June 01, 1998 10:13 PM
> To: Tesla List
> Subject: Primary Help
>
>
> I have a secondary that is 4" PVC and the coil is 18.5 inches long. It
is
> wound with 21 guage wire, enameled.
> The tank circuit is a 15Kv 30ma NST with a .0049 Mf bottle capacitor.
> It uses a RQ gap with 4 gaps.
> My terminal is a torus 4"X14"
>
> What type of primary would work with this? I haave tried the following,
>
> 1) 12 guage house wire 12 turns vert. 8 in. diameter, 8" sparks
> 2) 1/4" copper tube flat spiral 7 turns from 5" to 16", no output
> 3) 11 guage enameled flat spiral 24 turns 5" to 16", no output
>
> I need a lot of help in this area, Please help. M. Andrus
>