Protecting NSTs

• To: tesla-at-pupman-dot-com
• Subject: Protecting NSTs
• From: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Wed, 22 Sep 1999 06:46:13 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi all,
           I have a suggestion for preventing resonant charging when 
using a NST that was inspired by a question put to the Tesla-2 list.
Inserting a fullwave rectifier between the transformer and primary 
cap should do the job since it prevents the cap discharging back 
into the transformer and allowing the secondary to resonantly swing 
to ever higher voltages. It won't stop the peak cap voltage from 
reaching 2x the RMS transformer voltage but that is as far as it can 
go. In other words, if you use a fullwave bridge and your static gap 
is set wide enough to prevent firing, you know your transformer is in 
danger. It *may* also block gap transients from reaching the 
transformer if the diodes are ultra fast types perhaps (speculation).

?
Malcolm

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