Re: Dissapointing and confusing Results with MMC

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

Original poster: "Sean Taylor by way of Terry Fritz <twftesla-at-qwest-dot-net>" <taylorss-at-rose-hulman.edu>

Sounds fine to me . . . closing the gap down was exactly what I was
thinking, and as someone already pointed out, make the connections better
between the caps.

Also - for ground the primary? where are you grounding it?  The center point
of the NSTs is grounded, or should be, and there should be no other point in
the circuit ground, or you'll probably short out at least one half of the
NST secondary.  Also make sure that the secondary isnt striking the primary
where they are the closest, which can happen with an NST primary, since the
inside of the primary isn't at ground.  Hope that helps . . .

----------------------
G-1 #1204
The Geek Group
Because the geek shall inherit the Earth! (c)
www.thegeekgroup-dot-org

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, February 10, 2002 12:16 AM
Subject: Re: Dissapointing and confusing Results with MMC


> Original poster: "Marry Krutsch by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <u236-at-earthlink-dot-net>
>
> Hi CJ!
>
> The new cap is coming up to a lower voltage than your old cap.  This
> may give you worse performance, depending on what you are doing with
> your spark gap.  On my system, if I open the gap too wide, the system
> sits there humming, and every once in a while blurts out a spark or two
> before returning to "humming mode".  Since your old cap was resonant
> with your power supply, you may need to close down your spark gap quite
> a bit to get reliable firing.
>
> Close your gap down to 1/16" or so, then power up the coil.  If it
> fires well, open the gap a little way then fire the coil again.  Open
> the gap and test, until you get the best performance.  Since the cap is
> LTR, you shouldn't have to worry about runaway charging.  If this
> doesn't work, you're coil may be out of tune, or have some other
> problem.
>
> Good luck,
>
> Winston K.
>
> PS- I'm new to this game, so wait for other people to chime in before
> trying anything I suggested (in case I messed up).
>
>
>
>
>
>
>
> > After my other cap died on me (35kv .035 uf) I decided to upgrade to an
MMC
> > which I built to 18 kv .05 uf tested at .046. My primaries are 2 NST's
9kv
> > 60ma each. After hooking up the new cap, I had shorter sparks and it
> > operates very inconsitently. Maybe 1/5 times it works, 4/5 times it
makes
> > this buzzing noise and then I turn it off, turn it on, etc. Another
thing is
> > that when I ground the primary and secondary, the coil doesn't work at
all
> > and doesn't making the buzzing noise. With the old cap I had about 20
inch
> > sparks(measured to ground), and with the new (i'm guessing) about 8-12
inch
> > sparks. I should also note that I do not have a terry protection circuit
> > installed, nor do I have any real resistors in the MMC (Instead I just
> > hooked up the leads from each cap with folded peices of tin foil).
Please
> > Help
> >
> > CJ
>
>
>
>