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[Amps] .01uf caps across diodes ?

To: amps@contesting.com
Subject: [Amps] .01uf caps across diodes ?
From: "jim.thom jim.thom@telus.net" <jim.thom@telus.net>
Date: Tue, 29 Nov 2022 11:28:23 -0800
List-post: <mailto:amps@contesting.com>
What's the consensus on wiring .01uf disc caps across diodes in a HV supply
?
W8JI sez they are required, and used in ameritron amps....and used to
eliminate switching transients.

Some say the caps are required to meet emc specs on commercial gear.

I can't see how anything can get past the HV fitter caps.

KM1H also uses caps across diodes.  He also used another method, with a
.01uf cap across an entire series string of diodes, like a .01uf @ 5 kv
type.

Orr's books recommend caps across diodes... to eliminate noise on TX on
ssb. .

Are they required...or not ?

Jim  VE7RF
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