VSWR and magnifiers

• To: "'Tesla List'" <tesla-at-pupman-dot-com>
• Subject: VSWR and magnifiers
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sat, 4 Apr 1998 06:57:36 -0600
• Approved: tesla-at-stic-dot-net

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From:  Antonio C. M. de Queiroz [SMTP:acmq-at-compuland-dot-com.br]
Sent:  Saturday, April 04, 1998 1:29 AM
To:  Tesla List
Subject:  Re: VSWR and magnifiers

dwight duncan wrote:

>     I am currently running a 3 KW magnifier and getting 5-6 foot arcs.  I
> remember from Corums book I think that the additional voltage gain comes
> from the VSWR in the resonator.  Is this correct?

For a CW system, yes, as VSWR works as the Q of a lumped LC resonator.

For a capacitor-discharge system, the VSWR works only as a measure of the
losses in the resonator (as Q again). The higher, the better, but not much 
is gained after some point.

I don't see physical reasons for any additional voltage gain based on 
transmission line behavior of the resonator, when compared with lumped
LC behavior. Some experimental evidence?

Antonio Carlos M. de Queiroz
http://www.coe.ufrj.br/~acmq

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