Re: Variac capacitors

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

Original poster: "Jason Petrou by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jasonp-at-btinternet-dot-com>

Jonathan,

It is possible that some variacs may need PFC, so in that case it would be a
PFC cap for the variac... I would expect this if the cap was between 1 and
5uF, which is small PFC. However I am just speculating... it may be to stop
phase shift or something... if you have a dual trace scope then hook up a
current shunt and measure the V/I and see if there is an offset with/without
the cap... that will tell you if it is a PFC cap or not.

Best R,
Jason
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, December 08, 2001 3:37 AM
Subject: Variac capacitors


> Original poster: "Jonathan Peakall by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <jpeakall-at-mcn-dot-org>
>
> Howdy All,
>
> The variacs I have came with (meaning were slavaged with) a capacitor
which was
> across the input lines. I'm assuming that I want these there. Can anyone
> confirm/deny?
>
> Thanks!
>
> Jonathan Peakall
>
>
>