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They were joined in 1921 by Eugene F. McDonald, [4] and Zenith Radio Company was incorporated in 1923. The fledgling company soon became known for its high-quality radios and electronic innovations. Zenith introduced the first portable radio in 1924, [ 4 ] [ 5 ] the first mass-produced AC radio in 1926, [ 5 ] and push-button tuning in 1927. [ 4 ]
Consumer console radios were made by RCA, Philco, General Electric, Montgomery Ward (under the Airline brand name), Sears (under the Silvertone brand name), Westinghouse, Motorola, Zenith and others. Brands such as Zenith made a few high priced models ("Stratosphere") mainly produced moderately priced radios [ citation needed ]
A shortwave radio receiver often receives other broadcast bands, such as FM radio, Longwave and Mediumwave. Shortwave radio receivers are often used by dedicated hobbyists called shortwave listeners. Hammarlund Comet Pro shortwave receiver, circa 1931. Zenith console radio receiver with shortwave bands, circa 1938.
Inserting the power plug into a socket on the chassis or the side of the radio (depending on model) switched the T/O to battery operation. The first post-war T/O was the 8G005Y, designed by Robert Davol Budlong, an industrial design consultant responsible for many of the Zenith radio products. Priced at $125, it was in production from 1946 to ...
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.
This would leave General Electric without a buyer for its transmitters, so the officers proposed that GE purchase American Marconi, and use the assets to form its own radio communications subsidiary. Young consented to this proposal, which, effective November 20, 1919, transformed American Marconi into the Radio Corporation of America.
GE Marc V is a historic U.S. format or protocol of trunked, two-way radio introduced by General Electric Mobile Radio in the early 1980s. This equipment was also sold in Australia . The product name looks and sounds similar to GE-Mark V , a turbine controller made by General Electric.
During the "Golden Age of Radio" (1920 to 1950), families gathered to listen to the home radio in the evening, such as this Zenith console model 12-S-568 from 1938, a 12-tube superheterodyne with pushbutton tuning and 12-inch cone speaker.