Re: Help: Polystyrene Caps

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "tesla by way of Terry Fritz <twftesla-at-uswest-dot-net>" <tesla-at-paradise-dot-net.nz>

Team
I've sucessfully made small polystyene rolled caps (for the PSU decoupling
filter)

Made 1nF about 40kV in oil using 65mm plumbing pipe and fittings.
Poly was about 0.5mm thick and used 3 layers to achieve required dielectric
strength.
No problems to date running at 12kvpk
Would suggest the MMC path for main cap but polystyrene should be ok for
rolled caps if you really want to punish yourself
Best
Ted Linney in NZ
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, March 28, 2001 1:52 AM
Subject: Help:


> Original poster: "John by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<zavisa-at-home-dot-com>
>
> Also, have any of you used polystyrene for your caps?  It's seems so
> much cheaper to use about 93mils (a sheet of 1/32 and a sheet of 1/16)
> to get the required capacitance to match your transformer than going the