RE: I'm Sold on MMCs and RSGs! - Pics

["Andy Cleary" <gemware2-at-xxxxxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

	Thanks for the reply!  First off - for anyone interested, I have posted
pictures of both of those things to my web site, the Tesla/HV section can be
found at http://www.rpi.edu/~cleara/other/teslahv.htm, or the main page at
www.rpi.edu/~cleara/ .
	Unfortunately, I was unable to do a whole lot of testing last night due to
temperature difficulties :(  At what I determined to be the best run, I
achieved only a 4' discharge, which is approximately equivalent to what I
got with a static gap and .02 uf glassmike capacitor.  What I blame for that
shortcoming is a strong wind that was blowing across my driveway
continuously.  The streamer kind of "waved" - it wasn't as good as the run
inside.  The SRSG is running at 120 bps, and I usually run my coil's input
voltage up to 140v.  Unfortunately, my amp meter was destroyed from a surge,
but at one point during the night I blew a 20 amp fuse.  One difficulty I
have had is that of the SRSG not lining up correctly on each run.  Some
times it runs excellently, and sometimes it is downright pathetic!  Can I
correct that mid-run with a variac tune - or would that not have enough
range?  What I have to do now is keep shutting the gap on and off till I get
a good discharge.  I will try to take some more precise measurements without
wind next time I'm home, which unfortunately will be in about 3 weeks.  In
the meantime, I think I will work a little on designing a 15KVA transformer
for a core rewind!  Thanks,

-Andy C.

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, November 25, 2000 9:58 PM
To: tesla-at-pupman-dot-com
Subject: Re: I'm Sold on MMCs and RSGs!


Original poster: "Barton B. Anderson" <tesla123-at-pacbell-dot-net>

Hi Andy,

Fun post to read! Hey, if you get a chance and have at least amp/volt
metering
capabilty, please let us know some final specs, free-air spark lengths, and
volts/amps at those spark lenghts, bps, etc.. whatever you can.

(I agree with the two upgrades you just made. They make a totally
difference coil,
don't they.)

Good luck outside (hint: take some time to tune - start early before it
gets dark).
Bart

Tesla list wrote:

> Original poster: "Andy Cleary" <gemware2-at-dreamscape-dot-com>
>
>         Well, tonight I finally got around to firing up my coil with an
entirely
> new tank circuit - and I am impressed!!  I finished my SRSG today - it is
> made of a 1200 rpm synchronous motor, fitted with a 5"x3/8" Lexan rotor, 6
x
> 1/4" brass bolt electrodes, all attached to a 4" copper ring.  The
> stationary electrodes are also 1/4" brass bolts.  Unfortunately, I think
the
> motor picks up a different sync at each startup, as the performance varies
> greatly from run to run.
>         I also got to use my new MMC cap array as well - it is made of
100 ERO
> .068uf 1.6KV (Mike Tucknott) caps (Thanks again!).  They are arranged in
10
> modules, at .0068uf -at- 16KV each, and all ten are hooked in parallel for a
> total of .068uf -at- 16KV.  I am using the standard carbon-film 1/2W 10M
> resistors for bleeders (These in particular are from All Electronics,
> www.allcorp-dot-com ), and havn't experienced any problems yet.  For
reference,
> the rest of my setup is 12KV-at-150ma Neon bank, 8" secondary wound ~850
turns,
> and a large topload.
>         The results are spectacular!  The coil certainly has a better
sound to it
> and the discharge length increased by several feet!  I'm sold on those two
> items!  The coil looked to be restrained by my garage walls, so I plan on
> taking it outside tomorrow for some more tuning and no breakpoint!  Thank
> you again for the assistance with the SRSG, and the MMCs.  I doubt I could
> have done it (or at least done it that good!) without the list's help.
>  And - I plan on posting some pictures of those two improvements on my
> website in the next day or two for any interested parties.  Thanks again,
>
> -Andy C.