Re: REAL CAPACITOR (where can i buy one?)

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

Original poster: "Nathan Morris by way of Terry Fritz <twftesla-at-uswest-dot-net>" <themfam-at-home-dot-com>

Bob and all,
I have been blowing caps left and right and have mutilated my primary in the
process.  Last  night I cut it down to 2.25 turns so I could run a .84 uf
cap.  (My primary is made of  insulated #10 AWG and unlike bare tubing, it
makes moving the tap a total pain)  It was a large microwave cap rated at
24000 VAC.  It didn't last 5 seconds.  I have seen variable vacuum caps on
ebay.  They are generally rated for high voltages.  Having an adjustable cap
seems extremely nice although I would never put one on a TC that isn't
already running smooth.  Bob, I would like to see the pics on that design.

Thanks,
Nahtan Morris
Arlington Texas



----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, April 10, 2001 8:34 PM
Subject: Re: REAL CAPACITOR (where can i buy one?)


> Original poster: "bob golding by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<yubba-at-clara-dot-net>
>
> Hi All,
>     Yes it was me who made the adjustable cap with the tubes. I am not
> using it at the moment as I
> overvolted it on my rotary and killed it.:-(( Before that it had been
> working fine with my static
> gap. If anyone wants more pictures of the design let me know. Thanks Mark.
>
> cheers
> bob golding
>
> Tesla list wrote:
>
> > Original poster: "Mark Hales by way of Terry Fritz
<twftesla-at-uswest-dot-net>"
> <markhals-at-dircon.co.uk>
> >
> > > Also, an MMC is semi variable as compared to a single cap. I dont
remember
> > > who it was, but he had designed
> > > an MMC in such a manner that all one had to do was add additional
"tubes"
> > > of caps to the holding device (
> > > very nice design) to increase/decrease capacitance.
> >
> > Try Bob Golding, UK coiler. He subscribes to this list.
> > His MMC is of the design you describe. Series strung caps in tubes that
are
> > then clipped in springy U clamps around a larger tube in parallel.
> > Nice design which is very variable for capacitance and very quick to
change
> > value.
> > Pix can be seen at the TCBOUK site under events/corby teslathon2000.
> > Over to you Bob?!
> > Cheers, Mark Hales.
>
>
>