Re: Marx Generator Caps?

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

Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

Yes, they will work.  If you are starting with 2 to 3 KVDC, getting the very
small gap spacings just right will be tedious.  If each cap is a composite
of several in series and you have a higher voltage available, setting the
gaps will be less critical and time consuming.

--Steve
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, February 05, 2002 8:43 AM
Subject: Marx Generator Caps?


> Original poster: "Vivek Babtiwale by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <dr_vek-at-yahoo-dot-com>
>
> Would the Microwave oven caps below work for a Marx
> Generator as long as you used a low rep rate?
>
>
> --- Tesla list <tesla-at-pupman-dot-com> wrote:
> > Original poster: "S & J Young by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>
> >
> > Sean & prospective cap buyers,
> >
> > As you are a Geek Grouper,  I know you wouldn't want
> > to overcharge people
> > for your caps.  The going rate for brand new surplus
> > MO caps is 40 cents to
> > $1.50 from USA Manufacturing Surplus.
> > See
> >
> >
>
http://ww2.usamfg-dot-net/cgi-bin/onramp.exe?custnum=&password=&pgm=alpha.bbx&al
> > pha=capmicro
> >
> > It's all one URL - you may have to copy & paste it
> > into your browser
> >
> > MO caps generally are no good for RF use - they will
> > overheat and explode.
> > I think most have mylar dielectric which is lousy at
> > RF.   But they are fine
> > for level shifters (original use in a MO) and DC
> > filter caps at 50 or 60 Hz.
> > --Steve
> >
> > ----- Original Message -----
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > To: <tesla-at-pupman-dot-com>
> > Sent: Tuesday, January 29, 2002 7:21 PM
> > Subject: capacitors
> >
> >
> > > Original poster: "Sean Taylor by way of Terry
> > Fritz <twftesla-at-qwest-dot-net>"
> > <taylorss-at-rose-hulman.edu>
> > >
> > > Hi everyone - does anyone know if microwave oven
> > capacitors (polypropylene
> > > dielectric) work well for TCs if in series for
> > higher voltage? The reason
> > I ask
> > > is I have about 100 of them, they are split into 2
> > section, one at 0.86
> > uF, one
> > > at 0.34 uF, with a common center.  They are rated
> > at 2100 V and then say
> > 50/60
> > > Hz after that, so I'm assuming that thats an AC
> > rating . . .  I would be
> > > willing to sell some for $5 each, if anyone would
> > be interested.  If they
> > > aren't good for tank use, maybe for voltage
> > doubler/level shifter
> > circuits?
> > > First people to email me OFF list will get the
> > caps . . .
> > >
> > > Also, I have 12 .05 uF pulse caps rated at 10 KVDC
> > each.  Will these work
> > in a
> > > TC tank circuit, even at low duty cycle - maybe a
> > few (20) seconds on at a
> > > time? Thanks!
> > >
> > > ---------------
> > > Sean Taylor
> > > The Geek Group
> > > G-1 #1204
> > > <http://www.thegeekgroup-dot-org>www.thegeekgroup-dot-org
> > > Because the Geek shall inherit the Earth!
> > >