subminiature tube

subminiature tube

[¦səb′min·yə·chər ′tüb]
(electronics)
An extremely small electron tube designed for use in hearing aids and other miniaturized equipment; a typical subminiature tube is about 1½ inches (4 centimeters) long and 0.4 inch (1 centimeter) in diameter, with the pins emerging through the glass base.
References in periodicals archive ?
Among their topics are agricultural commitment in the Grasshopper Region, pots and the stories they tell: whole vessel assemblages as strong analytic cases, inferring identity and social division in a multi-ethnic historical cemetery: the Alameda-Stone Cemetery in Tucson, strong cases and the historical record: the case of portable radios with subminiature tubes, and strong methods in all cases.