Sirs,
According to the later revision of CB-2 on the '77,
the bias voltage unkeyed is ~57 volts. When keyed, it goes to 15 volts,
and when driven goes to ~8 volts.
Hal
W4HBM
On Fri, 17 Sep 2004 15:06:42 -0700 "daniel hearn" <dhearn@ix.netcom.com>
writes:
> Isn't it the case that the 77 has cutoff bias from the EBS when not
> driven?
> 73, Dan, N5AR
>
> -----Original Message-----
> From: amps-bounces@contesting.com
> [mailto:amps-bounces@contesting.com]On
> Behalf Of Phil Clements
> Sent: Friday, September 17, 2004 11:18 AM
> To: AMPS@CONTESTING.COM; Harold B. Mandel
> Subject: Re: [Amps] Applying HV to PA anodes
>
>
>
> > Is it or is it not necessary to withhold anode voltage while the
> > '800A7's (etc.) warm up???
>
> Not necessary, nor is it with 8877's. All Alpha 77 series amps
> apply
> HV as soon as you switch primary power.
>
> (((73)))
> Phil, K5PC
>
>
>
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