[R-390] Two questions as I put an R-390a back together

Barry n4buq at aol.com
Thu Jan 5 10:44:03 EST 2006


The lights go to the top of the escutcheon.

As for the knobs, it should be fairly obvious which knobs go where based on
the lettering.  I know the Local Gain, RF Gain, Main Power, BFO Pitch, and
Bandwidth use larger knobs.  I don't recall offhand what sizes are on the
rest of the controls.  I don't have my radio in front of me.  You might be
able to tell from http://members.aol.com/n4buq/r390a


The two knobs without marker lines are for the Dial Lock and Zero Adjust.

Hope this helps.

Barry - N4BUQ

----- Original Message ----- 
From: <mfisch at kent.edu>
To: <R-390 at mailman.qth.net>
Sent: Thursday, January 05, 2006 9:33 AM
Subject: [R-390] Two questions as I put an R-390a back together



Hi:

I have fixed up an R-390a and found I had to do the front panel and
knobs.  I did not take careful enough notes and the manuals probably
have the answer, but so far I've had no luck answering the following:

1)  Does the bezel have the lights towards the bottom of the front
panel or towards the top?  (The panel has the parts labels for the
lights below the hole, but the wire for power suggests the top would
be better).

2)  There are two types of non-megacycle/ kilocycle knobs larger and
smaller.  Where do the larger ones go?  (The pictures and drawings
make both look the same size to my eyes.)

Thanks
Mike (hopefully again a ham soon, WA8WKK in the late 60’s.)

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