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Re: [Amps] HV relay

To: "amps fourm" <amps@contesting.com>
Subject: Re: [Amps] HV relay
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Fri, 05 Feb 2010 09:46:06 -0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
On Fri, 5 Feb 2010 06:26:23 -0800, MIKE DURKIN wrote:

>Im changing my 2@3-500Z amp to a single GS-35B and in the spec's 
>for the tube it states that the warm-up time is Aprox~ 2 minute. 
>So instead of using  a power SCR in the mains to switch on the HV 
>bank

It's OK to put HV on the tube during the warmup time. What you don't 
want to do is ask it to draw plate current or generate power. A 
simple delay circuit that locks out TX is all you need. 

73,

Jim K9YC


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