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The Majestic Model #71 introduced in 1927, for example, was a tuned radio frequency receiver with a 9-inch (23 cm) speaker, powered from AC house current. [10] This was a considerable improvement over previous radios having typically poor selectivity and producing inferior sound from old-fashioned horn speakers or earphones.
The Concert Grand loudspeakers were designed to fill large spaces and were not at their best with listeners closer than 20 feet away. In 1965, a pair of B-410 Concert Grands cost US$2000. Such a high price limited ownership to a small number of hi-fi aficionados and audiophiles. The model line continued to be manufactured by Bozak until 1977. [5]
[20] Collins: 51J-4 Professional 1955 .54-30.5 30 bands CW AM 12 Collins R-390 Government Collins R-390A Government 1955-1970 .5-32 double conversion 32 band valve AM CW FSK 0.1 1 2 4 6 16 16 0 1 Cubic: R-2411V Professional dual receivers AM CW FSK LSB USB 0.5 1 3 8 100 per side 4 44 2 Cubic R 3050 Professional 5 21 2 Cubic R-3500-20 Government
[1] [2] It was later renamed Rogers Majestic Corporation Limited when Rogers merged his company with Majestic Corporation of Chicago in 1928. The new company controlled Rogers Radio Tube Company and Rogers Batteryless Radio Company. Joseph Elsworth Rogers (1898–1960), brother of Edward Rogers, was an important member of the company and served ...
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.
By the 1929 model year, Philco was in third place behind Atwater Kent and Majestic (Grigsby-Grunow Corp) in radio sales. In 1930, the company sold 600,000 radios, grossed $34 million, and was the leading radio maker in the country. By 1934, they had captured 30% of the domestic radio market. [9] A Philco 90 "cathedral" style radio from 1931
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A radio receiver may be a separate piece of electronic equipment, or an electronic circuit within another device. The most familiar type of radio receiver for most people is a broadcast radio receiver, which reproduces sound transmitted by radio broadcasting stations, historically the first mass-market radio application. A broadcast receiver is ...
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