Re: [Amps] List of Upgrades or Mods for Alpha 77DX / SX?

[Paul Christensen <w9ac@arrl.net>]

Rich,

On my 77Dx, the only changes have been to 1) balance the 8877 filament, taking 
all filament current off the chassis; 2) adding a filament choke; 3) adding 
Siemens GDTs; and 4) ensuring the 8877 gets the target 5.0V under today's 
elevated utility voltage. 

Paul, W9AC


Sent from my iPhone5

On Dec 30, 2012, at 2:00 PM, Rich Hallman - N7TR <rich@n7tr.com> wrote:

> Looking for a consolidated list of what people have for needed upgrades or 
> mods done on the Alpha 77DX/SX?
> 
> Thanks...Rich
> 
> Rich N7TR
> ex KI3V, N3AMK, WB3JOV
> www.n7tr.com<http://www.n7tr.com>
> http://www.qrz.com/db/N7TR
> Telnet: dxc.n7tr.com N7TR DXCluster
> 
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