EV>I was onboard several Aircraft Carriers 1960-1962 and there were R-390
EV>receivers in the Radio Room but they weren't in the URR style case.

The URR was developed by Colins under a govemment contract. They made
very few themsleves but most for the Govemrent were build by a number of
Contractors. Including:

Amelco

Arvin
Industries

Capehart
Corporation

Clavier
Corporation

Dittmore-Freimuth

Electronic
Assistance
Corporation

Fowler
Industries

Imperial
Electronics

Manson
Labs


Motorola
Incorporated


Servo
Industries

Stewart-Warner

Teledyne
Incorporated




The ones that collins did build cost $2210.00 each in 1951
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 þ SLMR 2.1a þ Typo Tom Strkes Again