This is the receiver component of another vintage Collins radio system and is usually paired with the T-195 HF transmitter to form GRC-19. It is often said to be a 'little brother' to the venerable R-390 - in the sense that is is ruggedised and simpler but performs just as well. It weighs in at a hefty 55lbs in its water-resistant case and has no power supply of its own - relying on the vehicle it was installed in. It was developed in the late 1940's and fully battle-tried in Korea although stayed in production via Collins licensees (such as Philco, Stewart-Warner and Western Electric) until the mid 1960's.
I'd rebuilding a AN/GRC-19 rig and I've not power up yet. It looks nice though.
Estimating the value of a rig can be challenging. The graph below shows historical prices paid by hams over the years. May it guide you to good fortune...
|USD 75.00||Good / Used||2011||JohnTF|
|USD 200.00||Okay / Used||2011||Sewermonger|
|USD||Good / Used||2014||KF0AM|
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