[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Oil Caps



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

Jeff,

Here in the UK pepople have had very good experiences with the 'blue caps' -
they are 68nF at 1.6KV and work very well, even at high breakrates of 400BPS
and over. They are also very cheap, coming to about 30p per cap (50 cents).
What is your required cap?  If I were you I would email some of the UK
coilers (Mike Tucknott comes to mind) and ask them if they have any spare -
there was a bulk buy some time ago. Oil caps are exceedingly difficult to
build, and very messy. I would go for a salt water MMC or even try the
Metlika caps - apparently they work quite well too.

Good luck,
Jason
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, September 27, 2001 3:16 PM
Subject: Oil Caps


> Original poster: "Johnson, Jeffrey D -at- PWC by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <jeffrey.d.johnson-at-l-3com-dot-com>
>
> Greetings everyone,
> I would really like to use the Geek caps everybody is so happy with but it
> seems their availability is limited.  I only have a few things left to do
to
> finish my coil and can't wait several weeks.  The Panasonic caps in
Terry's
> web page (.056 uF, 1600V) caps are too expensive (according to MMCcalc I'm
> over $100 for my planned cap).  So I was looking at oil as a dielectric.
> Epsilon r of mineral oil is 2.22, tand < 0.0005 and infinite puncture
> voltage.  I haven't seen any discussion of this on the list (I haven't
been
> on for that long however).  Any thoughts on feasibility, etc.  Oh yeah,
any
> design information?
>
> Jeff Johnson
> slc, ut
>
>
>