PFC caps - recommended type?

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

Original poster: "Bill Vanyo by way of Terry Fritz <twftesla-at-uswest-dot-net>" <vanyo-at-echoes-dot-net>

I want to add PFC caps to my three 15/60 NST's.  Are there any type of
caps that should be avoided, or any type that typically work well?  

Can anyone tell me if these might work? 
http://users.cnmnetwork-dot-com/~doemalibu/capmallory.jpg

They're Mallory caps, marked 100 MFD 250 VDC  (am I correct in assuming
MFD means uF, i.e. microfarads?)

	Thanks,
	Bill Vanyo