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Re: [Amps] My HV supply design.

To: Amps@contesting.com
Subject: Re: [Amps] My HV supply design.
From: Steve Thompson <g8gsq@eltac.co.uk>
Date: Thu, 03 Jan 2008 07:49:32 +0000
List-post: <mailto:amps@contesting.com>
> Hi all,
> 
> I'm back in the "business" after several very busy months and i'm continuing
> my 2m amplifier project. (4CX1500B)
> I'm still collecting parts and i will start with the power supplies.
> 
> I made a diagram of my HV supply and i'ld be happy if you could look on it
> and say if everything seems OK.

In the case of an arc, you end up with a lot of volts across R13 
which could have consequences for the tube, insulation and 
decoupling components depending on how your amp is configured.

A low value resistor (say 1 ohm) with a big diode across it 
prevents the voltage rising. Choose 0.5V FSD for the meter and the 
diode protects it from damage too.

Steve
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