|Name:||Collins Radio Company; Cedar Rapids (IA) (USA)|
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.
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.
|USA||54–85||R-390A/URR||6DC6||AM/CW/MCW; dual/triple conversion; (32) 1-MHz bands; xtal and mech. filter. 54000 sets mad...|
|USA||59–75||51S-1||6DC6||AM/CW/SSB; double-conversion above 7 MHz, triple conv. below. Notch-filter, 2 mechanical-f...|
|USA||58–61||75S-1||6DC6||Collins 75S-1 Receiver: covers 80 - 10 m amateur bands in 14 ranges (3,4-3,6 / 3,6-3,8 / 3...|
|USA||57/58||Transceiver KWM-1||6AH6||Collins KWM-1 Transceiver: covers ten 100 kHz segments in the range of 14 - 30 MHz resp. 1...|
|USA||55–58||Transmitter KWS-1||Collins KWS-1 transmitter: covers 80 / 40 / 20 / 15 / 11 / 2x 10 m ham bands; SSB/AM/CW, 1...|
|USA||55–59||75A-4||6BA6||Collins 75A-4 Amateur - Band Receiver: Double conversion, AM,CW, SSB, NB-FM optional, eigh...|
|USA||57–63||51J-4 (R-388A)||6AK5||Coverage 0.5 to 30.5 MHz in 30 ranges, AM/CW/MCW; Mechanical IF filters 1 / 3 / 6 kHz, se...|
|USA||52–56||51J-3 (R-388)||6AK5||General-coverage receiver covering 0.5 to 30.5 MHz in 30 bands, AM/CW/MCW. No bandwidth s...|
|USA||52–54||75A-3||6CB6||Collins 75A-3 Amateur - Band Receiver: Double conversion, AM/CW, NB-FM optional, seven ama...|
|USA||46–50||75A-1||6AK5||Collins 75A-1 Amateur Band Communications Receiver: Double conversion, AM/CW, six amateur ...|
|USA||50–52||75A-2||6AK5||Collins 75A-2 Amateur Band Communications Receiver: Double conversion, AM/CW, seven amateu...|
|USA||61–79||Transceiver KWM-2A||6AU6||Collins KWM-2A transceiver: CW/SSB, double-conversion, coverage of fourteen 200 kHz segmen...|
Further details for this radio manufacturer by the members (rmfiorg):