> a. is it permissable to apply high voltage simultaneously to the
> filaments and plate and wait the delay time before applying excitation?
> Eimac data sheet just mentions "cathode warm up time 180 seconds).
That is the way Alpha does it, Ron.
>
> b. does it make good sense to place a vacuum (or a good quality ) relay
> series installed in one leg of the high voltage AC secondary and let
> that switch in the HV to the rectifier board after the delay?
Not necessary. Invest in good step-start and HV glitch protection.
(((73)))
Phil, K5PC
>
> Thanks, Ron W2CQM/3
>
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