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Re: Primary-secondary spacing



Paul:

I used 2 1/2" primary/secondary radial clearance, on one coil with a 15"
secondary and had very good success.  Just keep the coupling light while
doing the initial shake down testing and you should have good luck.  Shots
of this coil are shown at www.execpc-dot-com/~ccurran

Chuck


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, July 31, 2000 2:03 PM
Subject: Primary-secondary spacing


> Original poster: "Paul Mathus" <pmathus-at-learningco-dot-com>
>
>      Hey folks,
>
>      I'm helping some friends build a big coil right now, and wanted some
>      advice from the big coilers on the list.  My building experience is
>      with my own small 700 watt coil, and this is a 15KVA pig powered
>      monstrosity.
>
>      The secondary is 15" in diameter.  What would folks recommend as a
>      good distance between the secondary and the first turn of the
primary?
>      My instinct is to go at least 2"-2.5" or more to avoid flashover. . .
>
>
>      thanks,
>
>      paul mathus
>
>
>
>