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The earliest radio programs of the 1920s were largely unsponsored; radio stations were a service designed to sell radio receivers. In early 1922, American Telephone & Telegraph Company (AT&T) announced the beginning of advertisement-supported broadcasting on its owned stations, and plans for the development of the first radio network using its ...
Chrysler and Philco announced an all-transistor car radio in the April 28, 1955, edition of the Wall Street Journal. [1] This Philco car radio model was the first tubeless auto set in history to be developed and produced. [2] It was a $150 option for 1956 Chrysler and Imperial cars and hit the showroom floor on October 21, 1955. [3] [4] [5]
Vintage amateur radio is a subset of amateur radio hobby where enthusiasts collect, restore, preserve, build, and operate amateur radio equipment from bygone years, such as those using vacuum tube technology.
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.
When radio was introduced in the early 1920s, many predicted it would kill the phonograph record industry. Radio was a free medium for the public to hear music for which they would normally pay. While some companies saw radio as a new avenue for promotion, others feared it would cut into profits from record sales and live performances.
A Philco 90 "cathedral" style radio, circa 1931. Although some households owned one or more sophisticated table radios or console models with shortwave and radio-phonograph combinations as early as the 1920s, table radios offered in various cabinet materials and designs at an assortment of prices from $10 to over $100 proliferated in the 1930s.
However, some very early (c. 1928–1931) radio programs were on sets of 12-inch or even 10-inch (25 cm) 78 rpm discs, and some later (circa 1960–1990) syndicated radio programs were distributed on 12-inch 33 + 1 ⁄ 3 rpm microgroove vinyl discs visually indistinguishable from ordinary records except by their label information.
Hyam Greenbaum and the BBC Television Orchestra in a test broadcast from Alexandra Palace television station to audiences at Radiolympia. Radiolympia, also known as the Radio Show, was a pioneering exhibition of radio equipment, latterly television equipment, held annually at Olympia in London, England, in the 1920s to 1940s, [1] [2] except for a period of interruption during World War II.