Search results
Results from the WOW.Com Content Network
In the 1930s some radios were manufactured using Catalin, which is the phenolic resin component of bakelite, with no organic filler added, but nearly all historic bakelite radios are the standard black-brown bakelite color. Bakelite as used for radio cabinets was traditionally brown, and this color came from the ground walnut shell flour added ...
The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.
The entry of radio into the realm of news triggered a feud between the radio and newspaper industries in the mid-1930s, eventually culminating in newspapers trumping up exaggerated [citation needed] reports of a mass hysteria from the (entirely fictional) radio presentation of The War of the Worlds, which had been presented as a faux newscast.
RCA antique radios, and early color television receivers such as the RCA Merrill/CT-100, are among the more sought-after collectible radios and televisions, due to their popularity during the golden age of radio and the historic significance of the RCA name, as well as their styling, manufacturing quality and engineering innovations. Most ...
1920s: Radio was first used to transmit pictures visible as television. 1926: Official Egyptian decree to regulate radio transmission stations and radio receivers. [40] Early 1930s: Single sideband (SSB) and frequency modulation (FM) were invented by amateur radio operators. By 1940, they were established commercial modes.
A crystal radio tuned to a strong local transmitter can be used as a power source for a second amplified receiver of a distant station that cannot be heard without amplification. [112]: 122–123 There is a long history of unsuccessful attempts and unverified claims to recover the power in the carrier of the received signal itself.
Ray, William B. FCC: The Ups and Downs of Radio-TV Regulation (Iowa State University Press, 1990) Rosen, Philip T. The Modern Stentors; Radio Broadcasting and the Federal Government 1920–1934 (Greenwood, 1980) Settel, Irving. A Pictorial History of Radio (1960) Sies, Luther F. Encyclopedia of American Radio: 1920–1960 (McFarland, 2nd ed. 2 ...
Milestones in radio: the first half century (1895–1945). The UNESCO courier (February 1997), p. 16–21; Radio Review/Radio Listeners Guide (1925–1929), Broadcasting Yearbook (1935–2010), World Radio TV Handbook (1947–) Berg, Jerome S. The early shortwave stations: a broadcasting history through 1945 (2013) radioheritage.net