RE: MMC bleed resistors

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

Original poster: "Tristan Steele" <tsteele-at-westnet-dot-com.au> 

Would there be any advantage in submerging the capacitor strings in mineral
oil?  I was looking at using about 150 capacitors in an undecided
arrangement with a 15Kv NST.  Most likely driving either a 4" of 6" coil.  I
had found a source for 4700pF ceramics -at- 3kV for AU$0.19 each, thereby
making them a cheaper option then the Geek Group options.

Tristan

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, 13 March 2004 9:46
To: tesla-at-pupman-dot-com
Subject: Re: MMC bleed resistors

Original poster: "Harold Weiss" <hweiss-at-new.rr-dot-com>

Hi Tristan,

I tried it with 7.5 and 15KV ceramic disk caps.  The caps would melt the
paraffin out and then explode with a flash leaving just the two wires.  I
then went to 1 gallon cider jugs with a lot better results.  If your going
to go with an MMC, stick with the 942's or equivalent.

But then again if you have LOTS of em, lots of parallel strings might get
the current down to manageable levels, and prevent their destruction.
However, corona losses could be too high to prevent it from being useful.
If you have a ton of them taking up space, try it, and see what happens.
Either way you can have the fun of watching them pop like little
firecrackers or the fun of getting streamers off your coil, or both.

David E Weiss

  > Original poster: "Tristan Steele" <tsteele-at-westnet-dot-com.au>
  >
  > Secondly, Is it possible to make a MMC using LOTS of Ceramic Capacitors
(ie
  > 4700pF 3kV)?
  >
  > Many Thanks
  > Tristan