[Yaesu] FW: FTDX-400

[street@dalsa.com]

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From: Joe Street
To: 'yaesu'
Subject: FW: FTDX-400
Date: Wednesday, January 22, 1997 11:38


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From: Joe Street
To: 'yaesu'
Subject: FTDX-400
Date: Wednesday, January 22, 1997 10:28

I am repairing a Yaesu FTDX-400.  The problem is that the output of the 
crystal controlled local oscillator drops as the band switch is changed from 
80 m up through the range until there is virtually no output.  On 80 meters 
the rig is able to tune up with only about 125 watts output.  I have 
disconnected the output of the oscillator from the mixer and observed the 
same behaviour with an oscilloscope on the oscillator plate with no other 
load on the tube. The tube is new, and the plate tank circuit has been 
peaked according to the manual as well as the trimmers ascossiated with each 
crystal.

Has anyone else had this problem?  Any suggestions?

Joe Street
VE3UXE

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