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Re: [Amps] SB-220 grid current

To: "Robert B. Bonner" <rbonner@qro.com>
Subject: Re: [Amps] SB-220 grid current
From: "Tom W8JI" <w8ji@w8ji.com>
Date: Sat, 25 Nov 2006 12:27:20 -0500
List-post: <mailto:amps@contesting.com>
> No plate voltage


No. No plate voltage causes the grid meter to pin at low 
levels of drive.

In a GG amp a negative grid meter swing is caused by a short 
from the cathode to chassis ground. That can be a shorted 
tube or anything on the cathode shorted to the chassis.

73 Tom


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