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[AMPS] Drake L4-B

To: <amps@contesting.com>
Subject: [AMPS] Drake L4-B
From: rjbro@bellsouth.net (Richard Brown)
Date: Mon, 27 Aug 2001 20:50:15 -0500
With Drake L4-B SN #1962 after 5 min of normal operation audio becomes
distorted, very bad. This problem still exists when  amp is driven  with
two different xcitrs and two different low SWR antennas. Well grounded.
With Key down the plate current fluctuates suddenly between 400-500 Ma
erratically and irregularly. Spurrious  radiation is getting into
phones.   Replace with another L4-B  using two same antennas and with
same xcitrs, and there is no problem..What are possible problems with 
amp SN# 1962  ??
Tnx, Dick


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