I'm very surprised that there are still people who build their own caps?
It's much better to buy some maxwell pulse caps or build a MMC, forget that
oily nasty stuff...
----- Original Message -----
From: <mrapol@xxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Monday, November 25, 2013 6:45 PM
Subject: [TCML] Unusual dielectric media
> For a while now I have submerged capacitor arrays in dielectric media to
> suppress corona,. arc-over, etc. I first used castor oil (K=4.7) and that
> worked fine, but it's not so easy to get. I read on a list dielectric
> materials that glycerin has a high K (47-68!) but I was afraid that, being
> anhydrous, it would absorb water and lead to corrosion. I set up four 20KV
> caps in parallel in a bottle and filled it with off the shelf glycerin,
> the USP kind sold as an emollient. After more than a year there isn't a
> speck of corrosion on the caps or linking hardware.
>
> Recently I found a new list of dielectric media and saw a listing for
> "syrup" (?) having a K of 50-80. Apparently this is corn syrup. Now, corn
> syrup ought to considerably cheaper than castor oil or glycerin. I think
> I'll start a new bottled array soon. I don't suppose anyone out there has
> tried this already?
>
> PBT
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