Re: Coil Grounding

• To: tesla-at-pupman-dot-com
• Subject: Re: Coil Grounding
• From: Adam <adamsmith-at-mediaone-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sun, 13 Feb 2000 15:21:57 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Troy, I have just finished winding an 8" x 24" x 22 AWG secondary, and I
think it's a good solid coil, but for a much larger system.  This secondary
is too large for a single 10kV 23mA OBIT supply.  I built a single OBIT coil
as my first tesla project, and it had a 3" x 12" secondary, which was about
right.

My 8" x 24" coil works well from 10.5kV -at- 120mA, but I'm currently upgrading
to a 14kV -at- 180mA supply.  And I feel it could take a lot more input if I
could provide it.

-Adam
adamsmith-at-mediaone-dot-net



>Original Poster: "Troy Peterson" <highvoltage-at-mad.scientist-dot-com>
>
> Primary xformer: E=10KV
> A=23ma
>
> Tank Capacitor:
> 1
> C = -------- = 0.006202 uF
> 2piFZ
>
> Primary Coil:  Inverse conical
>
> (I havn't done these calcs yet, I'm planning to wait till I have the
> ACTUAL specs on the secondary)
> 
> Secondary:
> Coil length: 61cm (24 inches)
> Coil Diameter: 20.3cm (8 inches)
> Wire: 22 gauge
> ohms/ft: 16.2
> wire dia: 0.0285 inches
> turns/inch: 37
> feet/pound: 514.2
> req'd length of wire: 1858.88 ft
> turns: 888

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