Re: [TCML] Very High Voltage Polystyrene Caps on e-bay

[vgreat@xxxxxxx]

If you want some heavy duty Pulse caps check these out on Ebay
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=160279375619
The modulator they were used in made a 20KV 4usec pulse at 1000 amps... duty cycle was .0012? 225pps.? 
They are also custom CSI caps but made in 2005 and used for about a year in a Linac modulator. They have 1/4-20 terminal hardware.
Fred (sparky)


-----Original Message-----
From: bartb <bartb@xxxxxxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Fri, 5 Sep 2008 6:14 pm
Subject: Re: [TCML] Very High Voltage Polystyrene Caps on e-bay


I picked these up from my contact at CSI. Yes, they are custom caps (nothing even close on the their website). They were built for a customer and for one reason or another, CSI got stuck with them (been sitting on a shelf for a while). The contact at CSI (name escapes me as it's been over 10 years now), but he is the one that told me they were polystyrene. Because the company I worked for at the time bought hundreds hv pulse caps from CSI that they were pleased to throw me a bone. I talked about the application (they were well aware of Tesla coils) and he thought these would perform very well. I was extremely lucky (and extremely happy) to be given these caps.?
?
Take care,?
Bart?
?
Quarkster wrote:?
> Bart -?
> > It sounds like your CSI caps were probably a "customer special", and not a standard CSI catalog item.?
> > One question: how do you know the dielectric is polystyrene, and not polyester, polypropylene, polycarbonate or some of the other "poly" materials that are used as dielectrics in special-purpose capacitors??
> > Regards,?
> Herr Zapp?
> >?
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