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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   Ç SLMR 2.1a Ç Typo Tom Strkes Again  
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