Re: Saran Wrap as a Dielectric

["Steve Rimsa" <srimsa-at-eclipse-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Saran used to be polyvinylidene chloride.  Plastic "cling" wrap is typically
LLDPE plus polybutadiene (rubber) as the cling additive.  I would stay clear
of food wrap and stick with virgin LLDPE sheeting.

Happy coiling! :)

Steve



>Original poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
>Hi Joshua,
>
>	Why not make a nice MMC cap?  My 9/30 LTR sync coil only uses 21 Panasonic

>caps.  About $30...  Perhaps a little cash could save a lot of effort and
>solve the primary cap problem for you.  Someone in your area may have some
;-)
>
>http://63.225.104.218/test/TeslaCoils/MyCoils/SmallCoil/small_MMC.jpg
>
>BTW - You asked about transformers...  IMHO, ACTOWN http://www.actown-dot-com/

>is the best.  They claim a 100 PPM defect rate, make medical stuff, and
>talk a nice quality talk...  The transformer I got was definitely made by
>somebody that cared...  The others seem to be prone to a high defect rate
>depending on who took that day off...  France is a very 'good day/bad day'

>place, Transco is sort of consistently "just ok"...  My 9/30 ACTOWN from
>the Denver wholesaler cost $54.88 with tax...  The France transformers were

>sitting around by the loose pallet load, but the ACTOWN's had nice
>individual boxes and such.  The guy at the wholesaler seem to be impressed

>that I was only interested in ACTON transformers.  He knew darn well that I

>was some 'looney' wanting an HV transformer, but the cash was good so...
>:-))  In Colorado, the hot dry summers and nasty winters really are super
>hard on the used transformers.  I just buy new ones since the tranny is
>sort of a 'moderately' costly item overall...
>
>Cheers,
>
>	Terry
>
>BTW - I got a few PFC caps too...
>
>
>At 03:29 PM 8/30/00 -0400, you wrote:
>>List,
>>
>>    I recently noticed that a roll of Saran Wrap I have is Polyethylene. It's

>>probably only a few microns thick (can't find the caliper) but if I used 

>>enough layers, would it make a suitable dielectric for a capacitor? Would
it 
>>be as good a dielectric as factory-manufactured LDPE? I checked it out, and

>>it seems to be pretty clean, no chemicals or anything, but since this is not

>>made for such a duty, would it be a bad idea to go ahead and make a cap with

>>it? Thanks for your help.
>>
>>- Joshua
>>
>
>
>
>