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History of the radio manufacturer Stromberg-Carlson Co. ; Rochester (NY)


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Name: Stromberg-Carlson Co. ; Rochester (NY)    (USA)    
Abbreviation: stromberg  
Products: model-types  
Summary: Stromberg-Carlson (Tel.Mfg.) Co., 1060 University Ave., then 100 Carlson Road, Rochester, New York.
Trade names: Stromberg-Carlson, Te-Lek-Tor-Et.
Generalvertretung Schweiz: Charrière & Co., Bulle.
See also Stromberg Carlson Canada.

 
Founded: 1894
Closed: 1991
Radioproduction: 1924 - 1961
History: 2 employees of Chicago Bell Telephone formed a partnership in 1894. The business strategy of Alfred Stromberg and Androv Carlson was simple: they wanted to manufacture a better telephone. With the expiration of the patents on Alexander Graham Bell's telephone, about thirty independent companies sought to capture a piece of the market that Bell had dominated. Stromberg and Carlson created one such company.

The Stromberg-Carlson phone became known as the "farmer's telephone," because it helped the American farmer by connecting towns and breaking down the harsh isolation of rural life. By the turn of the century, Stromberg-Carlson emerged as a leader among the independent telephone manufacturers. This was due to their reputation for stable prices, uncompromising quality, and a strong emphasis on quality workmanship.

In 1904, Home Telephone Company, based in Rochester, NY, purchased Stromberg-Carlson and moved all operations to New York. World War I created a great demand for Stromberg-Carlson's phone equipment, so much so that all civilian business was put on hold during the war. During WWI, Stromberg-Carlson produced portable telephones and camp switchboards vital to the Signal Corps fighting in Europe. During World War II, the company increased production of advanced communications products, supplying switchboards, telephone instruments, field radio sets, and sound-powered systems to the U.S. Navy. After the war, with technology booming, the company expanded into the electronics industry. General Dynamics, a major defense supplier, became interested in the scientific abilities and electronic developments of Stromberg-Carlson. In 1955, the two companies merged, providing a wide range of products.

Stromberg-Carlson purchased a license to produce Neutrodyne radio receivers in 1923 and began production shortly thereafter; a license to the RCA patent pool was obtained in 1927.  Stromberg-Carlson’s strategy was to make high end receivers, and the company quickly developed a reputation for high quality engineering in its radios.  The company acquired Rochester radio station WHAM (still active today on 1180 kHz) in 1927.  Televisions and FM radios were added in 1939.Radio and TV production ended in 1956, shortly after the merger with General Dynamics.  Radio-phonographs and hi-fi components continued to be produced until 1961.  The company’s highly successful telephone-related businesses were partially sold off to Comdial (1982), with the remainder of the company merging with Siemens AG in the 1991.Sources:1.  Alan Douglas, “Radio Manufacturers of the 1920s,” Vol. 3, The Vestal Press Ltd., Vestal, NY (1991).2. Comdial company history at www.certified-cti.com.

     

Some models:
Ctry  Year  Name  1st Tube  Notes
USA  60  FM-443   6AQ8   
USA  59  CSA-2   7025  The Stromberg-Carlson Model CSA-2 is an AC operated 4 Tube Audio Amplifier. 
USA  59  CSA-1   7025  The Stromberg-Carlson Model CSA-1 is an AC operated 4 Tube Audio Amplifier. 
USA  59  AF-681KS   ECC83  The Stromberg Carlson Model AF-681KS is an AC operated 6 Tube Phono Amplifier with 4 Speed... 
USA  59  AF-681M   ECC83  The Stromberg Carlson Model AF-681M is an AC operated 6 Tube Phono Amplifier with 4 Speed ... 
USA  59  AF-681W   ECC83  The Stromberg Carlson Model AF-681W is an AC operated 6 Tube Phono Amplifier with 4 Speed ... 
USA  59  AR-432   7025  The Stromberg Carlson Model AR-432 is an AC Operated 6 Tube Audio Amplifier. 
USA  59  AF-681WS   ECC83  The Stromberg Carlson Model AF-681WS is an AC operated 6 Tube Phono Amplifier with 4 Speed... 
USA  59  C.A.R.7   12AF6  The Stromberg-Carlson Model C.A.R.7 is a Battery operated 5 Tube Custom Built AM Automobil... 
USA  59  AF-601WS   6AV6  The Stromberg-Carlson Model AF-601WS is an AC operated 5 Tube Phono Amplifier with 4 Speed... 
USA  39  402-H   1A7GT   
USA  59  AV-70   6AV6  The Stromberg Carlson Model AV-70 is an AC Operated 5 Tube Audio Amplifier. 

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

RCA, Hazeltine & Johnson Labs. licensing for US TV sets  (23.07.2008) Wolfgang Scheida  269/0
RCA, Hazeltine & Johnson Labs. licensing for ~1940s/1950s US TV sets The following textures in extracts you will find on 1940s Stromberg-Carlson and probably other brand TV sets: This apparatus is licensed under the United States Patent rights of: Hazeltine Research Inc. Radio Corporation of America (RCA) Edwin H. Armstrong (FM)  patents # 1.941.069 , 2.295.323 , 2.323.698 &  Re. 21.660 Johnson Laboratories Division of the Mantle Lamp Company of America   If you know something more about the last mentioned company and their radio & TV related patents please do not hesitate adding your knowledge to RM.org! Thanks in advance.
 
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