Re: Spark Gap/Primary Arrangment Question

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: Spark Gap/Primary Arrangment Question
From: Tesla List <tesla-at-stic-dot-net>
Date: Mon, 25 Aug 1997 19:54:25 -0500
Approved: tesla-at-stic-dot-net


From: 	FutureT-at-aol-dot-com[SMTP:FutureT-at-aol-dot-com]
Sent: 	Monday, August 25, 1997 4:41 AM
To: 	tesla-at-pupman-dot-com
Subject: 	Re: Spark Gap/Primary Arrangment Question

In a message dated 97-08-24 20:15:47 EDT, tesla-at-pupman-dot-com writes:

<< John,
 
> I was just wondering how you attach your tap with the insulated wire? Do
> you have small pieces of the insulation removed on each turn, or do you
> just  pre-calculate the exact number of turns required?
 
> Peter E.
  >>

Peter,

I just push a small needle into the wire at the tap point.  Undoubtedly
losses are high using this method, but I still get good results.  A 
better way would be to make a sort of clip that could slide over the
wire after removing the insulation at that point.  Offset the tap points
from turn to turn to avoid arc-over.   

John Freau


---------------------
Forwarded message:
From:	tesla-at-pupman-dot-com (Tesla List)
To:	tesla-at-poodle.pupman-dot-com ('Tesla List')
Date: 97-08-24 20:15:47 EDT


From: 	Peter Electric[SMTP:elekessy-at-macquarie.matra-dot-com.au]
Reply To: 	elekessy-at-macquarie.matra-dot-com.au
Sent: 	Sunday, August 24, 1997 5:13 AM
To: 	Tesla List
Subject: 	Re: Spark Gap/Primary Arrangment Question

Tesla List wrote:

> From:   FutureT-at-aol-dot-com[SMTP:FutureT-at-aol-dot-com]
> Sent:   Friday, August 22, 1997 9:44 AM
> To:     tesla-at-pupman-dot-com
> Subject:        Re: Spark Gap/Primary Arrangment Question
>
> In a message dated 97-08-22 12:42:59 EDT, you write:
>
> <<  Is there a quick and dirty way to calculate
> >the distance between turns in a flat primary?  I'm running with a
> 12K,
> > 60ma NST and somewhere between .03 and .06 UF.  Should I just plan
> on
> > increasing it until there's no more arcing between turns?
>
> > Once again- thanks!
>
> > Brandon Doughan
>   >>
>
> Brandon,
>
> I use a  primary wound with # 12 pvc insulated wire, close wound,
> no arcing occurs between turns.  Transformer is 15kV, 60ma.
>
> John Freau

John,

I was just wondering how you attach your tap with the insulated wire? Do
you have small pieces of the insulation removed on each turn, or do you
just  pre-calculate the exact number of turns required?

Peter E.