Re: Capacitors

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

Original poster: "J Dow by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jdowphotography-at-hotmail-dot-com>



John Richardson- all

I like the idea of an adjustable cap. And others like it to.
There have been a lot of attempts. I think it was the Geek’s (geek group) 
that had the idea of a bucket cap with bottle caps in side and a changeable 
water level.

I like your idea it sounds doable. But I think your problem is not 
dielectric strength, a good transformer oil or mineral oil will do. It’s the 
cap surface area that will be a bitch to figure. If you think of the amount 
of surface area in a good-sized bottle cap or a large rolled (polyethylene 
and aluminum sheet) cap, it is a lot. Just to get up to the capacitance of a 
small Geek MMC, homemade’s get big.

But I think if you were to design a cap like the ones used to tune radios 
the kind you mentioned. Make it BIG and put it under oil it would work cool.

Ambition is not a bad thing

Read you later
Josh





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