[R-390] IF Alignment Question

[Barry]

----- Original Message -----
From: <Flowertime01 at wmconnect.com>
To: "R-390-List" <R-390 at mailman.qth.net>
Sent: Sunday, September 10, 2006 10:17 AM
Subject: Re: [R-390] IF Alignment Question


> Barry,
>
> You are OK. PANIC NOT
> ________________________
> I noticed that when I switched slowly from band 0 to band 1, the diode
load
> would increase a bit before clicking to the next band.
>
> ???
> This is your first clue that you need to pull the RF deck someday and do a
> visual alignment of the RF band switch.
>
I did a complete gear-train rebuild and mechanical/switch alignment.  I just
had the deck off again for some other work and put it back in place
yestarday just before beginning this alignment.  It doesn't seem to be the
bandswitch make/break as much as the slight differences in the positions of
the IF slug racks.  That's when I noticed that if I tweaked them while
listening on a signal from the antenna jack rather than the test point
methods.

Can you expand a bit on the "octave" tuning method you described?

Thanks again,

Barry - N4BUQ