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[Amps] A Grounded Grid biasing question

To: amps@contesting.com
Subject: [Amps] A Grounded Grid biasing question
From: Radio WC6W <wc6w_amps@yahoo.com>
Reply-to: wc6w_amps@yahoo.com
Date: Wed, 9 Jul 2008 09:44:43 -0700 (PDT)
List-post: <amps@contesting.com">mailto:amps@contesting.com>
  Has anyone ever seen a design wherein an 8877, or similar triode, operated in 
grounded grid has the bias generator placed in the grid return line, rather 
than in the typical cathode (grid + cathode current) location?  

  This implies that the HV return must be allowed to float at least as positive 
as the bias value. The grid remains chassis grounded as usual.  And the 
advantage of this arrangement is that the bias generator need only pass the 
grid current which is typically 1/10 of the cathode current.

  A proposed circuit may be seen at:

http://wc6w.50webs.com/wc6wamps/index.html?fr40.html

73 & Good morning,
  Marv WC6W 

http://wc6w.50webs.com/




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