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A classic Emerson transistor radio, circa 1958. A transistor radio is a small portable radio receiver that uses transistor-based circuitry.Previous portable radios used vacuum tubes, which were bulky, fragile, had a limited lifetime, consumed excessive power and required large heavy batteries.
The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.
Portable radios typically are small enough to be hand held, or, for larger radios, have a handle or carrying strap. Portable radios may have an arrangement for powering from an outlet, conserving the batteries when an outlet is available. Portable "emergency" radios may be solar and/or hand crank powered. [6]
The reflex receiver, invented in 1914 by Wilhelm Schloemilch and Otto von Bronk, [136] and rediscovered and extended to multiple tubes in 1917 by Marius Latour [136] [137] and William H. Priess, was a design used in some inexpensive radios of the 1920s [138] which enjoyed a resurgence in small portable tube radios of the 1930s [139] and again ...
CW / SSB / (AM: receive-only) Yes Xiegu 5105 [53] Commercial 160m – 6m 4.5 SSB / AM / FM Yes Xiegu G90 [54] Commercial 160m – 10m 20 CW / SSB / AM / (FM experimental with low sound quality) Yes Elecraft KX3 Kit or assembled 160 – 6 meter ham bands / wide band RX 0.1 – 10 CW / SSB / AM / FM / digital modes Yes Yaesu FT-818, Yaesu FT-817(ND)
2001 – a portable AM/FM audio receiver with 8-track player (c. 1970). Commonly known as the "Spaceball". 2002 – a portable AM/FM audio receiver (c. 1972) 2003 – a pair of spherical speakers (c. 1972) 2004 – a portable AM/FM audio receiver with compact cassette recorder; 2005 – a vinyl turntable with integrated AM/FM audio receiver and ...