RE: Marx Generator Capacitors

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

Original poster: "Mccauley, Daniel H by way of Terry Fritz <teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>


Thanks.  Thats what I thought.  Figure with a manual trigger on the first
stage its basically a one-shot.

Anyways, I'll try these ceramite 4700pF, 40kV caps I got and try for a 15
stage Marx Generator.  I started it last
year, but now I'll try to finish it for some of the upcoming tesla events
this summer.

Dan



Marx Generators (unless you were planning on running real high rep rates)
are essentially a DC device.  The duty cycle is very, very low, so the only
effect of using "non RF" capacitors would be that the losses might reduce
the output of the generator slightly.

However, consider that a truly terrible capacitor with a loss of 1% will
result in a 1% reduction in the output "bang" energy of the Marx, hardly
noticeable. The same cap in a 1000 Watt TC would be unacceptable:  because
you'd be dissipating 10 Watts and the cap would certainly overheat.

A cap with a huge ESL might reduce the rise time of your marx pulse, but I
suspect that if you are cobbling together a Marx to play with, you're not
worried about the last nanosecond of rise time.




 >Cera-mite makes several series of "red ceramic" capacitors. Some are fine
 >for AC, some not.
 >
 >KEN
 >----- Original Message -----
 >From: "Tesla list" <tesla-at-pupman-dot-com>
 >To: <tesla-at-pupman-dot-com>
 >Sent: Tuesday, March 11, 2003 1:24 PM
 >Subject: Marx Generator Capacitors
 >
 >
 > > Original poster: "Mccauley, Daniel H by way of Terry Fritz
 ><teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>
 > >
 > >
 > > This is a bit offtopic, but I was wondering if high voltage ceramic
 > > capacitors could be used for low-duty marx generator.
 > > I have some of these RED ceramite capacitors.  They're no good for tesla
 > > use, but maybe I could put them to use in a marx generator.
 > >
 > > Thanks
 > >
 > >
 > >