[R-390] Oldham Connector piece needed plus deaf band question

Flowertime01 at wmconnect.com Flowertime01 at wmconnect.com
Sat Sep 27 23:39:00 EDT 2008


Gary,

Did you get some help with the Oldham coupler parts?


And my question for the group is this:  The receiver is slightly hard of
hearing on the bands between 7 - 16 mHz.  Crystal oscillator is strong as
measured at the diode load jack and other bands perform well.  I figure the
common genealogy between the 390 and 392 should share some common problems
and fixes as well.   

Is this a sign of an alignment issue in the RF deck or something else?

Actually, two Octaves of the RF deck need some adjustment.

One is the 4.0 to 7.999 it needs some peaking to get the top end back up to 
par.
Second is the 8.00 to 15.999 it needs some adjustment to get that whole 
octave back up to par.

Time for the signal generator, power meter, or AC voltmeter and resistor on 
the audio output.

Roger AI4NI


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