RE: NST PFC cap question

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

Original poster: "sundog by way of Terry Fritz <twftesla-at-uswest-dot-net>" <sundog-at-timeship-dot-net>

Hi all, Kevin,

 I scrounge mine from old appliances.  Just about any dishwasher, washing
machine, AC or fridge will have one.  I've found that the washing machines
and AC's tend to have the beefiest.  Mine have case-rust, some dings and
dents, but work splendidly. And best of all, were nearly free!
												Shad

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Thursday, December 21, 2000 7:35 PM
To: tesla-at-pupman-dot-com
Subject: Re: NST PFC cap question


Original poster: "kevin wilson by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<thebiggiantkevin-at-hotmail-dot-com>


I just hooked up a pair of 100uF 100V non-polar electrolytic caps in series
(closest to the needed 41uF I could get) to the primary of my 15kV, 30mA NST
Snipperzzz...
Hi Kevin ...
2 things going against you here...

1 .  PFC caps are hooked up in parallel with the 120V in
2.   you need motor run caps   ( electrolytics wont work with AC too long
they go BANG !! )
the motor run caps are normally 6" tall 3" wide and 1-2" thick  oval shaped
in an aluminum case try to find a couple that are rated for 240V 30 or so
uF.

Scot D

I actually did have the caps in parallel with the 120V input; the two caps I
used were in series with each other. It gets hard to explain with all the
series and parallel going on (sorry). Thanks for your information, I do
appreciate it, but leads me to a couple more questions. Where can I find
these run caps, and how much should I expect to pay for them? Are they
generally relatively rugged- will used ones be almost as good as new? Thanks
for the help, Kevin



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