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Admiral radio-phonograph, c. 1950, at the Lamar County Historical Museum. In 1934 in Chicago, Illinois, Ross Siragusa founded Continental Radio and Television Corporation (CRTC), which produced consumer electronics such as radios and phonographs. [1] The radios were designed and produced by Radio Products Corporation (RPC), owned by Irwin J ...
The term All American Five (abbreviated AA5) is a colloquial name for mass-produced, superheterodyne radio receivers that used five vacuum tubes in their design. These radio sets were designed to receive amplitude modulation (AM) broadcasts in the medium wave band, and were manufactured in the United States from the mid-1930s until the early 1960s.
Majestic radios from the Grigsby-Grunow halcyon era of the late 1920s–early 1930s have become antique radio collectors' items, prized for their craftmanship and appearance. [ 49 ] [ 50 ] Some models, such as the Art Deco -styled model 161 produced in 1933, have been fully restored.
Today's radios are usually uneconomical to repair because mass production and technological improvements in numerous areas have made them so inexpensive to buy, while the cost of human labor and workshop overheads have increased greatly in comparison. Typical insides of an antique radio, showing the vacuum tubes.
Aurthur A Collins standing next to a transmitter. Arthur Andrews Collins (September 9, 1909 – February 25, 1987) was an American radio engineer and entrepreneur.He first gained national recognition as a teenager for significant advances in radio communication.
Today, many National radios are collected, restored and operated by vintage amateur radio enthusiasts. Through the 1970s and 1980s, National survived as a government contractor and ceased development and production of civilian equipment. However, by 1991, after continuing difficulties, the company ceased trading.