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Re: primary/mmc stuff
I am running a 12kV 30mA with strings of 12 Philips 378's rated at 1600VDC
47nF (0.047uF) with no problems so far after about 30 min of runtime.
Remember Vpeak = sqrt 2 * Vrms. So for 12kV rms Vpeak = 17kV
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
Sent: Tuesday, August 01, 2000 7:19 AM
Subject: primary/mmc stuff
> Original poster: "acmnovak" <acmnovak-at-email.msn-dot-com>
> Hello everyone,
> As some of you already know, I'm organizing a bulk MMC buy next week. I
> wondering what the consequences of not having bleeder resistors is? Does
> cause the cap to fail? Greg Hunters MMC failed and he didn't have
> This is the only failed MMC case I can think of other than ones caused by
> direct strikes from their TC.
> Also, Is it true that you can rate an MMC by it's max DC voltage for your
> transformer? We're going to be getting 1600 v -at- .047uF polypropylene caps,
> I was thinking of putting 10 or 12 in a string. What's the minimum I can
> with to save $$$?
> I've decided on a flat spiral made of copper tubing for my primary. I
> have gone with a more "novel" design approach but i wanted to have a
> example of a modern TC. I'm sick of messing with flashovers and
> I got a lexan cutting board from my local Big-K (K-Mart) for $8 which I
> use as primary supports. I'm planning on making one as seen here:
> Only, i'm not going to paint mine and it will be on a plywood table.
> How far does the strike rail have to be before the primary arcs to it?
> thinking only an inch and a half... Does that sound acceptable?
> How, exactly, would one mount these supports other than screws? I was
> of cutting little blocks of HDPE and gluing them to the side of the
> and then using nylon bolts to hold them down... Just a thought.