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History of the manufacturer  

Collins Radio Company; Cedar Rapids (IA)

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Name: Collins Radio Company; Cedar Rapids (IA)    (USA)  
Abbreviation: collins
Products: Model types

Collins Radio Company, Cedar Rapids, Iowa. Founded by Arthur Andrew Collins, W0CXX (1909 - 1987). In 1973 North American Rockwell took over (Rockwell-Collins).

Collins Radio Company, gegründet 1933 von Arthur Collins, machte sich zunächst als Hersteller von Amateurfunk- und später kommerziellen Sendern und Empfängern einen Namen.
In den Fünfzigerjahren brachte Collins mit den 75A, 51J - Empfängern und den etwas kleinformatigeren Geräten der "S-Line", 75S und 51S, technisch und mechanisch hervorragende Geräte heraus, welche bzgl. techn. Leistungen wie auch Design Meilensteine waren.
1973 wurde die Firma von Rockwell übernommen und wendete sich als Rockwell - Collins Inc. militärischer Übermittlung und der Avionik zu.

Founded: 1931
Production: 1931 -
Arthur Collins WØCXX started business together with one employee in the basement of it's home, in 1933 Collins Radio Company moved to 2920 First Ave., Cedar Rapids. The young company became known for supplying the 1934 Byrd Antarctic Expedition II with telecommunications equipment.
In the following years, Collins expanded in the Amateur equipment market, started producing transmitters used in aviation and commercial services.
In 1940 Collins Radio had 150 employees and moved to the so-called "Main Plant" in 855 - 35th Street, Cedar Rapids. Production was changed for wartime requirements, mainly the AN/ART airborne transmitter and the TCS vehicular transmitter - receiver.
After the war, Collins Radio Comp. constructed two new production sites in Burbanks (1946) and Dallas (1950), in 1953 the added the C Avenue Complex.
The 75A ham band receiver presented in 1946 with it's crystal controlled first oscillator and permeability tuned second oscillator was considered as an all-time classic amateur receiver.
After 1949 the 51J series of general coverage receivers evolved in the marvel of the R390A shortwave receiver, a milestone with it's mechanical digital frequency display and the famous mechanical IF filters.
The smaller "S-Line" ham band (75S) and general coverage (51S) receivers, transceivers and linear amplifiers followed at the end of the fifties.
Collins Radio Company was acquired by Rockwell International in 1971, Arthus Collins resigned shortly after the merger in 1972 and founded A. Collins Consulting, Inc.
In the 1980s, Rockwell - Collins Inc. focused on the military and commercial / avionics communications sector.

Some models:
Country Year Name 1st Tube Notes
USA  40 Amplifier 7C 6C6  Amplifier for Collins series 12 hi-fi speech equipment. 
USA  60–65 Broadcast Console 212G-1   Number of tubes/valves varies with number of modules installed in mixing console 
USA  66 55-G1 2N3823  The 55G-1/LF Low-Frequency Tuner is a manually operated tuner that is an accessory unit... 
USA  36 Remote Amplifier 12X 6J7G  For broadcast usage. 3 channels. 4 stages. 101 db gain. Remote power supply 412... 
USA  36 Power Supply 412A   Remote power supply 412A for Collins 12X Remote Amplifier. 
USA  41 Radio Transmitter COL-52245 - TCS-12   1.500 - 12.000 kHz. A unit of model TCS-12 Radio Equipment. Manufactured for Na... 
USA  45 Audio Equalizer 116F-1    
USA  44 Remote Amplifier 12Z-2 9001  For outside broadcasts, 4 channels, VU meter, 4 XLR terminals, screw terminals for Line 1,... 
USA  57 516F-1   Fuente de alimentación para transceiver Collins KWM-1. 6,3V AC, 800 Vdc, 260 Vdc and -6... 
USA  50 Transmitter 17L-6   Collins 17L-6 Transmitter; For aviation use, sourced by Dynamotor. 
USA  52–64 T-195/GRC-19 5726  Collins T-195/GRC-19 radio transmitter. Also made by other manufacturers. Three variants:... 
USA  52 R-391/URR   Autotune (8 channels, Moore says 7 position autotune!) version of the R-390/URR. IF: 9-18 ... 


Further details for this manufacturer by the members (rmfiorg):