As low as required to peak the output at 1200W, about 30-40 ma total with
used tubes at 60W or so.
I bought this amp as a basket case, bad tubes, transformer, bandswitch, etc,
so do not know what it did when new.
Carl
----- Original Message -----
From: tz4am@aol.com
To: km1h@jeremy.qozzy.com ; amps@contesting.com ; wa6fgi@steeltrails.net
Sent: Saturday, December 29, 2018 11:02 AM
Subject: Re: [Amps] Alpha 76A drive levels...
Carl,
Thanks for the information. What is the grid current reading at 1200w?
Jeff
TZ4AM
-----Original Message-----
From: Carl <km1h@jeremy.qozzy.com>
To: amps <amps@contesting.com>; Gary Smith <wa6fgi@steeltrails.net>
Sent: Sat, Dec 29, 2018 2:59 pm
Subject: Re: [Amps] Alpha 76A drive levels...
Alpha offered a low drive mod for that series of amps, check their legacy
amp docs.
My 76PA 3 holer will easily run 1800W with100W drive, I back it down for
1200W.
Carl
----- Original Message -----
From: "Gary Smith" <wa6fgi@steeltrails.net>
To: <amps@contesting.com>
Sent: Sunday, December 23, 2018 5:06 PM
Subject: [Amps] Alpha 76A drive levels...
To the group:
Have a friend who recently purchased a Alpha 76a two-holer.
He currently is driving it about 65 watts getting 500 watts or so output.
As he has no instructions on the amp, is this low level of drive okay or
should it be driven at a higher level of input power.
Thanks to the group,
Gary...wa6fgi
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