[Amps] 8877 filament

[RCM]

> On May 7, 2017, at 10:50, Jim Thomson <jim.thom at telus.net> wrote:
> 
> Date: Fri, 5 May 2017 10:52:14 -0600
> From: MU 4CX250B <4cx250b at miamioh.edu>
> To: Jim Thomson <jim.thom at telus.net>
> Cc: "amps at contesting.com" <amps at contesting.com>
> Subject: Re: [Amps] 8877 filament
> 
> <What is the mechanism by which an indirectly heated cathode is
> <"poisoned" if the filament is run at a reduced voltage, with no other
> <voltage on the tube?


There are a bunch on notes and papers on the Eimac site.

It’s been some time since I looked through them.

Stuff about operation at reduced filament voltage, for longer life, but don’t remember anything about standby.

Someone with more time and brains, or if you don’t have copies you need them.

Their “Search Website” seems to find more than just the Library page.

http://www.cpii.com/library.cfm/9