Re: Capacitor Question??

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

Original poster: Bert Hickman <bert.hickman-at-aquila-dot-net> 

Hi David,

I've got a number of their single-eared 25 kV cousins that were originally 
part of a high voltage Pulse Forming Network in some older Varian medical 
equipment (a LINAC). These caps are almost certainly rated for moderate 
current pulsed duty but, unfortunately, it's not clear if they were 
designed for low pulse repetition rate (in which case they'd most likely be 
Mylar) or for high PPR (which would imply polypropylene). However, based on 
the comparatively small physical size and the age of the capacitors, I'd 
bet that they are Mylar.

Pictures of the 40 kV cap and its 25 kV cousin are at:
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=3809614785
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=3810492088

-- Bert --

Tesla list wrote:

>Original poster: DRIEBEN-at-midsouth.rr-dot-com
>Hi all,
>I have located a capacitor that has some decent ratings, voltage
>and capacitance wise, and I was wondering if it would be any good
>for Tesla application. It is a GE part# 30F1498 rated at 40 kV -at-
>.22 uFD. I have tried, unsuccessfully to find out more about it
>from the GE websites (there are many of them!) If anyone could
>tell me more about this particular cap and its intended applica-
>tion(s), I would be most greatful.
>Thanks,
>David
>
>.