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  2. Transistor radio - Wikipedia

    en.wikipedia.org/wiki/Transistor_radio

    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.

  3. Radio receiver - Wikipedia

    en.wikipedia.org/wiki/Radio_receiver

    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. [7] Boom box - a portable battery-powered high fidelity stereo sound system in the form of a box with a handle, which became popular during the mid-1970s.

  4. Category : Low-power FM radio stations in the United States

    en.wikipedia.org/wiki/Category:Low-power_FM...

    Low-power FM radio stations (LPFM) started broadcasting in the year 2000 after the FCC began licensing of 100 watt and 10 watt local community radio stations across the United States and its territories. Many LPFM radio stations are on the air serving local areas of the country today.

  5. List of community radio stations in the United States

    en.wikipedia.org/wiki/List_of_community_radio...

    Following is a list of FCC-licensed community radio stations in the United States, including both full-power and low-power non-commercial educational services. The list is divided into two sections: The list is divided into two sections:

  6. List of radios - Wikipedia

    en.wikipedia.org/wiki/List_of_radios

    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.

  7. Micropower radio - Wikipedia

    en.wikipedia.org/wiki/Micropower_radio

    Micropower radio is a subset of pirate radio concerned with low-power radio broadcasting, usually less than about 100 watts radiated power and sometimes less than 0.1 watt. . Micropower radio transmits to a number of recipients ("listeners" or "viewers") that belong to a small local g

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