Re: MMC warming

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

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

104F = 40C

(C*1.8)+32 = F

So, 102F isn't anywhere near 85C
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, June 09, 2002 9:47 PM
Subject: MMC warming


> Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<srward16-at-hotmail-dot-com>
>
> Hi,
>
> Im just wondering how warm do most MMC banks become.  Im looking for some
> personal experience answers here.  I ask because my cap gets warm after a
> bit of running.  I would say that my cap heats up to about 102 degrees(F).
> Off hand i do not know how many degrees C that is.  My GE caps are rated
to
> 85 C.  I have a feeling that they are not that hot.  Im running my TC with
a
> reconditioned NST(12/40).  My cap consists of one string of 8, GE .068uf
for
> a cap of .0079uf -at- 24kvdc.  I would have to say that my transformer
primary
> gets warmer than the cap, just to give you all an idea of the temperature.
> I can hold my hand on the cap with absolutely no discomfort.  I hope that
im
> giving a good description of how warm they get.
>
> SOOOO... is this acceptable, or am i going to ruin these caps soon??  Ive
> tried my next best cap configuration, 2 strings of 10 caps for a .0136
cap,
> but this was much too big, and gave weak performance.
>
> Also, I was wondering what my perfomance would be considered(good or bad).
> Heres my specs:
>
> 12000v ~40ma NST
> 9 gap static RQ type set at a tad bit over 12000v
> .0097 GE MMC
> Twin coil set up: pri, 3.5"inner/12"outer diameter, taped at 5 turns
>        Secondaries are 2.5"x 10" wound with 28g, 2"x12" toroids.
>
> My best spark so far is 26" with a breakout point, and 22" without a
> breakout point.  Unfortunately, i could not get my SRSG to work.
>
> I would like to hear what you all think about my MMC getting warm like it
> does, because i really would like it to last a while.
>
> Steve Ward.
>
> _
>
>