Re: flat strip primary

• To: tesla-at-pupman-dot-com
• Subject: Re: flat strip primary
• From: Teslaman-at-aol-dot-com (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Fri, 07 May 1999 01:27:44 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

In a message dated 5/6/99 5:58:47 AM Central Daylight Time, tesla-at-pupman-dot-com 
writes:

  Bob

  I have a coil setup nearly identical to yours using the same transformer.  
It uses 1" brass strapping wound in a flat spiral using 1/4" poly rope hot 
glued between layers.  The rope is simply wound with the ribbon at the same 
time.  This makes a compact, high inductance coil per unit primary.  No 
flashover between turns ever occurs.  This particular coil has 24 turns for a 
broad tuning range of secondary coils.
> 
Kevin E.


Hi all,
>  	i just got a load of 20 mm x 1 mm(3/4" x .06") flat  copper strip 
from the
>  local scrap yard. I think is used for lightning conductors. I am thinking
>  of making a flat strip primary with some of it. Does anyone have any
>  experience of doing this?. What i need to know is how much spacing I will
>  need between turns. I am thinking of using some 1 mm poly between the
>  turns, but how many layers do i need. I am using a 9 kv transformer rated
>  at 60 mA. Should I use the same rule of thumb as with caps and assume 300
>  volts per mil.

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