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Re: [Amps] [BULK]Re: [BULK]Re: cathode to ground in tetrode amp

from [Jim Tonne] [Permanent Link][Original]
To: "John Popelish" <jpopelish@rica.net>, <Amps@contesting.com>
Subject: Re: [Amps] [BULK]Re: [BULK]Re: cathode to ground in tetrode amp
From: "Jim Tonne" <tonne@comcast.net>
Date: Mon, 30 Jan 2006 21:27:33 -0500
List-post: <mailto:amps@contesting.com> 

Subject: Re: [Amps] [BULK]Re: [BULK]Re: cathode to ground in tetrode amp

The 22 uH and 1000 pF in the grid peaks at 1 MHz and rolls off at 12 dB
per octave after that.

Can anyone tell me why they put a 12K resistor from screen to ground?
Its on the load side of the screen current meter.  Perhaps negative screen
current sometimes?

-JT


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