Re: Cap size

• To: tesla-at-pupman-dot-com
• Subject: Re: Cap size
• From: FutureT-at-aol-dot-com (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Wed, 19 May 1999 17:19:48 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

In a message dated 99-05-19 06:35:06 EDT, you write:

<< 
> But are there any big advantages to using a LTR size cap.
> Also will a LTR cap put more strain on the power supply?
 
> Cheers Mike Tucknott   >>

Mike, all,

Assuming you're using NST power with a sync rotary gap, an LTRS 
cap can give the same
output spark as a reso-cap, but a higher variac setting will be needed.
It will be necessary to feed more than 120 volts to a 120 volt rated
NST to equal the length that would be achieved at 120 volts with a
reso-cap (depending on the gap phasing).  But the LTRS cap will 
produce a given spark length with less voltage on the output of the
NST.  For this reason, the LTRS cap may stress the NST less than
a reso-cap, so that is an advantage.

I just built a new sync rotary gap that is simple to constuct.  I'll 
post a photo at my webpage soon.  This work will be on my latest
videotape which is gradually getting done, but is not ready yet.

Cheers,

John Freau

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