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Re: Polyethylene Capacitors
Tesla List wrote:
>
> >From gowin-at-epic-1.nwscc.sea06.navy.milTue Sep 17 22:37:24 1996
> Date: Tue, 17 Sep 1996 16:50:54 -0500
> From: Dan Gowin <gowin-at-epic-1.nwscc.sea06.navy.mil>
> To: tesla-at-pupman-dot-com
> Subject: Polyethylene Capacitors
>
> All,
> I`m about to build my first set of Polyethylene/Oil
> Capacitors. I've already downloaded the construction tips by
> Richard Quick and I've found them to be very complete. I've
> also purchased some 14"x50' aluminum flashing and 3-(6"x19") PVC
> pipe with caps for containers. The one question I have is,
> why should I special order some 30 mil polyethylene ( stacked
> 3 sheets for 90 mil thickness)? When 15 sheets of 6 mil polyethylene
> will do just the same. And is readily available at a department
> store.
>
> Big Red, HV Capacitors. Burn Baby Burn.
> ITS Member
> D. Gowin
Gentlemen,
There has got to be a better alternative to using 30 mil or
60 mil LDPE. Even the HDPE is very expensive. I've just spent my
lunch hour calling around to the local Indiana plastics suppliers.
Bloomington, Indianapolis, Cincinatti and even someplace near St. Louis.
The prices were very high. A single sheet of 48"x96" LDPE 30 mil
averaged around $18 a sheet! The 60 mil averaged $34 a sheet. A
sheet of HDPE 48"x96" 60 mil was $43.96.
Please would somebody answer my question regarding 6 mil
thickness LDPE stacked for 90 mil thickness. Will this work and
are there any pitfalls?
Stacked plates of plexiglass in large square plastic comforter
boxes are looking better every day. According to my calculations,
16 - 14"x14" sheets of aluminum flashing using 17 - 16"x16" 3/16"
thick plexiglass will yeild .01 uF. With a Tesla voltage rating of
32 KV. The mineral oil I've found was realitively inexpensive,
$9 per gallon.
Any comments are more than welcome.
Big Red, HV Capacitors. Burn Baby Burn.
ITS Member
D. Gowin