[R-390] Digital readout

[Cecil Acuff]

Rich do you remember if it was a mechanically driven affair?  I am assuming 
not if it didn't require calibrating it must have somehow monitored the 
various frequencies and did the math necessary to be accurate...

Sure would like to see one of those....that's something we could probably 
duplicate pretty easily.  You would think there would be technical 
documentation around on it somewhere....

Cecil....
----- Original Message ----- 
From: <richardmay01 at comcast.net>
To: <r-390 at mailman.qth.net>
Sent: Wednesday, October 04, 2006 9:41 PM
Subject: [R-390] Digital readout


>A digital readout mod actually did exist. It was an add-on using seven 
>segment leds, stealing its power from the power supply. I was in Japan and 
>noticed a few of these mods used on R-390A's for an intercept mode other 
>than Morse code. Pretty cool, no calibrating was required and they read 
>down to 100 cycles. I was lucky enough to talk the maintainance NCO out of 
>one. The BFO did not change the frequency readout.  Of course, in those 
>day, I didn't realize what I had and it is long gone. I have never seen 
>another one. Rich.
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