From: davmckin [SMTP:davmckin-at-ix-dot-netcom-dot-com]
Sent: Sunday, February 01, 1998 4:39 AM
To: Tesla List
Subject: Re: CAPACITOR??
Tesla List wrote:
> From: Zuma [SMTP:mwise-at-ns.sosis-dot-com]
> Sent: Wednesday, January 28, 1998 8:26 PM
> To: tesla-at-pupman-dot-com
> Subject: CAPACITOR??
> How well will a mineral oil capacitor hold up with .25 inch spacing
> between plates? Also, how lossy is mineral oil? I figure that at
> 200v/mil it should have a rating of around 50kv. I have figured it and
> I can make one of these for no more than i would say 40 dollars.
> Would this even be worth it.
> I would make a poly plate cap, but the size of the plates are not very
> big(5"x7" precut flashing) using 6mil poly with a total of about 48mil
> between plates x2 equals a lot of time and lots of cutting.
Dear Chris & all,
I would recommend cutting back to around 25 kV / inch or even a
little bit less (say 20 kV / in.) for Tesla Coil purposes for the necessary
clearances required in Mineral Oil and Transformer Oil.
David L. McKinnon
High Voltage / Transformer Engineer