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Re: [Amps] cathode return?

To: <>, "amps" <>
Subject: Re: [Amps] cathode return?
From: "Tom W8JI" <>
Date: Sun, 25 Jun 2006 17:43:08 -0400
List-post: <>
> I have seen designs for using such directly-heated cathode 
> tubes
> which simply attach the cathode common return to one of 
> the filament
> connections.  (The filament connections have multiple RF 
> bypass
> capacitors between them, and to ground.)
> What are the arguments for and against each of these 
> approaches to
> providing the "cathode return"?

There is no cookie-cutter answer.
Depending on filament voltage and other operating/bias 
voltages, you can get varying amounts of 60 cycle AC on the 

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