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Re: [Amps] 8877 grid current going negative etc

To: <almacottage@btopenworld.com>, <amps@contesting.com>
Subject: Re: [Amps] 8877 grid current going negative etc
From: "Andy Cook, G4PIQ" <g4piq@btinternet.com>
Date: Wed, 7 Dec 2005 11:56:04 -0000
List-post: <mailto:amps@contesting.com>
Ian,
 
It's probably either a grid cathode short in the tube (which can be
temperature related), but also check for any swarf etc. stuck between
the vanes of the input tuning cap on the cathode if it has one -
effectively still a DC grid cathode short - but less expensive! 
 
73,

Andy, G4PIQ
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