Re: The VTCC

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

Original poster: Ed Phillips <evp-at-pacbell-dot-net> 

Tesla list wrote:
 >
 > Original poster: "K. C. Herrick" <kchdlh-at-juno-dot-com>
 >
 > Hi Steve-
 >
 > I enjoyed seeing the photos of your VTCC.  Good work!
 >
 > I'd think you would want to employ the on-off gating to diminish the duty
 > cycle & thus allow for a higher peak spark-power.  Also, the current
 > posting re the 833C seems a good reminder.
 >
 >  >From my experience, I'd advise against doing much with s.s. coils:  Too
 > many parts to fail--and too little capability of testing the electronics
 > while the coil is operating, due to emf induced into the test equipment.
 >
 > If I can maintain the energy I'm going to continue looking into my
 > notions for a Marx-like primary--where a set of resonating capacitors is
 > repetitively charged in parallel from the mains & then discharged in
 > series thru the primary coil.  I've always been reluctant to work with
 > 5-12 KV of mains-ac lurking around!
 >
 > Regards,
 >
 > Ken

	That idea will take lots and lots of capacitors.  In place of the spark
gaps, how about a motor-driven multi-contact mechanical switch?  Such
things have been used for a similar purpose. If designed right you could
eliminate the resistors.

Ed