Transistor Radio

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transistor radio

[tran′zis·tər ‚rād·ē·ō]
A radio receiver in which transistors are used in place of electron tubes.

Transistor Radio


a radio receiver in which semiconductor devices, primarily transistors and semiconductor diodes, are used for the amplification, frequency conversion, and detection of signals. The term “transistor radio” was introduced during the 1950’s, when transistors first came into industrial use and were employed in various types of receivers, such as radio broadcast, television, and communications receivers.

Transistor radios have been improved so as to broaden the range of usable frequencies, increase the power of the transistors, enhance the stability of the electrical characteristics of the transistors, and improve performance. For example, transistor radios for audio broadcasting were originally produced mainly for the reception of amplitude-modulated signals in the kilometer, hectometer, and—since the 1960’s—decameter wavelength ranges. The late 1960’s saw the development of all-wave receivers, which permit the reception of frequency-modulated ultrashort-wave signals. In the 1970’s the majority of commercially produced radio broadcast receivers were transistor radios. The advantages of transistors, namely, their smallness, low supply voltage, and low power consumption, have made it possible to reduce substantially the size and weight of receivers and to power the receivers by means of miniature batteries housed within the receiver casing. As a result, portable, pocket, and miniature transistor radios have been produced for mass distribution.

With the development of microelectronics, transistor radios based on discrete elements (for example, transistors and diodes) are being replaced by transistor radios in which modules and integrated microminiature electronic devices are used (seeINTEGRATED CIRCUIT. The use of microelectronics improves the quality of transistor radios and makes it possible to introduce such operating conveniences as automatic tuning, finger-touch control, and digital frequency display.


References in periodicals archive ?
My father was overseas in Korea and I peeked at presents in my mother's closet and I saw a transistor radio.
Jawad al-Shammari - now in his fifties - only learned of his country's liberation from BBC reports on a small transistor radio.
Plus I had a little transistor radio and got Radio Caroline, from when pop music was very free.
The station had its own swimming pool and, in the wee small hours, Ross would record part of his show and we'd go for a swim, with only a transistor radio at the side of the pool to ensure the show was still being broadcast.
In addition to color photographs of the works, essays consider hybrid Africa between memory and modernity, commingling views, God's transistor radio, concrete jungle fever, Ide Ude up to date, don't cheat on me, Gou, and Mami Wata cross-cultural shrines.
It advised people to monitor weather conditions, arrange food items, a transistor radio, flashlight with spare batteries and emergency equipment for use in the event of flooding.
The authority also asked to arrange food items, a transistor radio, flash light with spare batteries and emergency equipment for use in the event of flooding.
When I was a boy, I would sneak a transistor radio in my school bag or jacket pocket and run the earpiece up my sleeve and listen to him calling games while I sat in my class in elementary school.
Best of the cameos comes from Lou Reed, whose deadpan drawl transforms the tinny piano pop and transistor radio backing of Some Kind Of Nature.
The breeze that can be felt as well as heard; why do they always have to have their umbilically connected transistor radio "blaring out the latest pop record pollution".
The company behind Texas Instruments was founded, Geophysical Service, which went on to market the world's first transistor radio and hold 15,000 patents under its name.
Nude, with a potbelly, a round head and a tiny transistor radio in one hand.