It's quite rewarding to build your own HV Pulse caps. I learned a lot and wish I'd had to build some as an assignment when in school...
Regards,
BrianB
> On Nov 25, 2013, at 10:40 AM, "Teslalabor" <teslalabor@xxxxxxxxxxx> wrote:
>
> 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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