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[Amps] hf-2500 again

To: <amps@contesting.com>
Subject: [Amps] hf-2500 again
From: "K1TTT" <K1TTT@ARRL.NET>
Date: Sat, 20 Apr 2013 14:33:08 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Ok, got parts in and replaced most of the bias circuit.  Now I have 9.7v on
the cathode on rx and 8.7v on tx.  Would those be reasonable for bias when
cutoff and tx in ab2 operation for the pair of 3cx800a7's??  I have a
feeling the cutoff voltage is a bit low as I am seeing a bit of plate
current, at least its just barely moving the needle instead of the 400ma I
had before.

 

David Robbins K1TTT
e-mail:  <mailto:k1ttt@arrl.net> mailto:k1ttt@arrl.net
web:  <http://wiki.k1ttt.net/> http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or  <telnet://k1ttt.net/> telnet://k1ttt.net

 

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