[R-390] R-9XX

chacuff chacuff at cableone.net
Wed Mar 14 20:33:18 EDT 2012


If you watched it drift then I would have to guess it was counting the 
frequency of the mixing scheme and actually displaying the operating 
frequency.  A more simple optical or mechanical encoder design should not 
drift around.

Interesting.

Cecil
K5DL
----- Original Message ----- 
From: "jay golden" <jgolden577 at rochester.rr.com>
To: <r-390 at mailman.qth.net>
Sent: Wednesday, March 14, 2012 2:20 PM
Subject: [R-390] R-9XX


> It was I who several years ago wrote about having the R-9XX receiver with
> the LED display instead of the veeder root counter.  It also had a small 
> Bud
> box hung on the back, probably to house the electronics supporting the LED
> readout.  It was sold to me in th early '80s by Ted Dames whio alleged it
> was one of twenty-five or so surplused out of the White House 
> Communications
> Agency.  I returned it to him after watching it drift on the display.  It
> was otherwise an R390A.
>
> Jay Golden K2JSG
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