[R-390] 390() vs 390(A)

[Roy Morgan]

At 10:20 PM 12/29/2004, ToddRoberts2001 at aol.com wrote:
...Too  many  tales  of R-391s eating    themselves have convinced me this 
is the right thing to do.-Sandy G.
>    C.H.(Sandy)Geiger III
>Good advice Sandy.  I feel the same way about the motorized tuning on the
>R-389. It was fun to watch it work once or twice but after seeing how fast it
>would spin the main tuning dial I just don't think it would be wise to use 
>that
>feature day in and day out.

To all R-389 Owners,

The main tuning knob on this radio has a mechanical clutch built into 
it.  Make sure that clutch is cleaned and operating properly. I have an 
R-389 in which the PTO is hopelessly munched (sob). I suspect it was from 
some hammer-fisted operator wrenching the tuning knob past the stop, or 
that the PTO had frozen water in it when the motor was engaged or the main 
tuning knob was forced.

It can ba a LOT of turns from one end of the R-389 tuning range to the 
other (up to 50), so that's why the motor-assisted main tuning in that 
radio.  (The second motor in the R-389 switches the first IF stage 
automatically as you tune within either of the two tuning ranges.  You 
can't do with out that motor that I know of.)

Roy



- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
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