[Amps] HV relay

[Jim Brown]

On Fri, 5 Feb 2010 06:26:23 -0800, MIKE DURKIN wrote:

>Im changing my 2 at 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