[Amps] Applying HV to PA anodes

[Harold B. Mandel]

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 at 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 at contesting.com 
> [mailto:amps-bounces at contesting.com]On
> Behalf Of Phil Clements
> Sent: Friday, September 17, 2004 11:18 AM
> To: AMPS at 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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