Re: Hmmmm...(was CDE 942c20p15k Group buy)

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

Original poster: "Arpit Thomas" <arpit-at-inzo-dot-org> 

Ack! I didn;t think of that! I saw an enormous tesla coil prototype with a 
safety gap across the caps, which is what gave me that idea. Yeah, I will 
put a big resistor there :) In regards to Kreso, well I guess if you are 
into that sort of destructive testing, the amount of overrating of your 
equipment signified by the concept of 25 capacitor strings probably is 
sensible ;)

thanks muchly,
Arpit

*********** REPLY SEPARATOR  ***********

On 17/05/2004 at 11:02 PM Tesla list wrote:

 >Original poster: Mark Broker <mbroker-at-thegeekgroup-dot-org>
 >
 >By directly shorting a charged pulse-duty capacitor, severe stresses are
 >imposed as tens of thousands of instantaneous amperes are flowing.  If you
 >feel absolutely compelled to place a safety gap across the capacitor, you
 >should also place a high voltage power resistor in series with the gap.
 >To
 >do otherwise could have equally detrimental effects on your caps as
 >overvoltage.
 >
 >But Kreso doesn't use sfety gaps - they limit the amount of destruction
 >possible....
 >
 >best regards,
 >
 >Mark Broker
 >Chief Engineer, The Geek Group
 >
 >
 >On Mon, 17 May 2004 20:06:56 -0600, Tesla list <tesla-at-pupman-dot-com> wrote:
 >
 >>Original poster: "Arpit Thomas" <arpit-at-inzo-dot-org> kreso, wow ,
 >>congratulations mate :D glad to see you got it all together :) Just put
 >>some safety caps on your maxwells so they don't die or something. :) ANy
 >>photos of your coil?
 >>
 >>*********** REPLY SEPARATOR  ***********
 >>
 >>On 17/05/2004 at 12:08 PM Tesla list wrote:
 >>
 >>  >Original poster: Kreso Bukvic <kreso.bukvic-at-kc.htnet.hr>
 >>  >
 >>  >Yep Terry, all you MMC fans read this:
 >>  >
 >>  >Well i toke my PT, 4 inch secondary, no toroid, secondary was not
 >grounded
 >>  >and there was no ballast on the pt and no tunning. After letting the
 >power
 >>  >in :
 >>  >
 >>  >90-100 Cm arcs hitting the walls, huge racing sparks on the secondary,
 >>  >primary to primary flashovers, secondary to pimary flashowers...
 >Secondary
 >>  >is now molten ball of plastic and copper :-).
 >>  >
 >>  >These maxweell sure give a good performance...
 >>  >
 >>  >I doubt 5 small capacitors in series would hold up on this, maybe 20-30
 >>  >should could.
 >>  >