Odd primary caps??

From:  Bill the arcstarter [SMTP:arcstarter-at-hotmail-dot-com]
Sent:  Monday, June 15, 1998 6:45 AM
To:  tesla-at-pupman-dot-com; bert.hickman-at-aquila-dot-com
Subject:  Re: Odd primary caps??

It was written:

>> are metal-can, case ground, GE "Dielectrol" units, picked up for five 
>> at the power company surplus yard. The protection circuit is a pair 

>Nice catch! Power Factor Correction (PFC) caps that power 
>companies use are considerably more robust than most other caps 
>you'll encounter, since they have to withstand high amplitude 
>switching spikes, lightning transients, and tough environmental 

Hmm  - I wouldn't have thought those caps would have tolerated seeing 
large currents at ~250 KHz, as found in a typical tesla coil...  I would 
have thought these guys were optimized for 60Hz use only?

 I'll have to get me some of those... :)