Re: An Idea! for cap

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

Original poster: "pjj" <tha3rdman-at-zoominternet-dot-net> 

I've done some poking around, and decided theres something better at least
on the surface  than silicone oils, SILICONE SHEETS i've found then online
for roughly 20 bucks a sheet 1/8 thick, most types have a DC of 3.6, and a
Dissapation factor of .002, Dielectric strenth of 500-700 v/mil, added bonus
is the temp range of ~54-~200 deg C.

any comments?

Paul J Jenkins
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, December 06, 2003 7:44 PM
Subject: Re: An Idea! for cap


 > Original poster: Ed Phillips <evp-at-pacbell-dot-net>
 >
 > Tesla list wrote:
 >  >
 >  > Original poster: ashumate3-at-aol-dot-com
 >  >
 >  > I remember many years ago there was a set of books from Popular Science
and
 >  > one of the projects was a Tesla Coil. The capacitor that had been
designed
 >  > for that was a piece of glass with medal foil sheets on each side. You
can
 >  > bulid yourself a custom cap.
 >  >
 >  > I don't know where you could find these books, but it seem like there
where
 >  > about 12 volumes to the set.
 >  >
 >  > Al Shumate
 >
 > Over the years I built many glass plate capacitors for TC use, starting
 > about 1940 and ending about 1960.  Never had much life with them and
 > consider them a waste of time in the era of MMC's.
 >
 > For those interested in nostalgia I have an 0.004 ufd 15 kV mica
 > transmitting capacitor by Dubilier; cast aluminum case.  Label has
 > Bureau of Steam Engineering on it and probable date is about 1918, as
 > the Navy quit building spark transmitters by then.  Works quite well for
 > a small TC.  Also have some earlier caps which were intended for spark
 > transmitters but don't have them to look at.  Made in blocks of 0.001
 > ufd and guys could buy as many as they could afford.  Have never put
 > voltage to one as they look in pretty poor shape.
 >
 > Ed
 >
 >
 >