[R-390] R392 Bandswitch & RF Deck

[wes Bolin]

I am still working on the RF section of my R392 receiver.  My problem is
that I get a stronger signal with my signal generator from the antenna lead
to E201 (grid of First RF Amplifier tube) with the Band one MC higher.
.800MC strongest on 1.8MC band
2.8 MC strongest on 3.8MC band

I did find in troubleshooting that Section 2 of the RF bandswitch (S201)
was reversed.  I rotated it 180 degrees and it looks like it is in
agreement with the positions of the other switch wafers from photos that I
have.

The MC Band and the Crystal Oscillator MC agree.  With the RF section on
the 2 MC band the cams on the rear side line up per the T.O.

I seem to be going in circles trying to find the problem.  Isolating
Section 1 of S201 with a sig gen has the strongest signal 1 MC higher.  And
isolating Section 2 of S201 has the strongest signal 1 MC higher also.

Since the Band MC, and the Crystal OSC, and the Cams all agree, what is
causing the problem?  Any help appreciated.  Maybe there is something
similar on a R-390A?

Thanks
Wes