radio tube

noun

1. a vacuum tube used in a radio receiving set.

Example Sentences

“Now,” said Jack, “is the time that I wish I had my 20-kilowatt radio tube that I have been working on so long.”

From Project Gutenberg

Mainspring of the device is a newly-developed radio tube capable of generating for practical use an ultra-high frequency wave of 500 megacycles that is not affected by static conditions, has a cork-centre bounce, has a frequency that can be measured at distances as low as 50 feet off the ground.

From Time Magazine Archive

His incisive understanding of their experiments with a new radio tube left them speechless, unable to believe that he had quit school when he was 13.

From Time Magazine Archive

The tube is completely sealed-off, like an ordinary radio tube, needs no pumping to maintain the high vacuum.

From Time Magazine Archive

With this inventor's audion radio tube, the babble of formerly isolated voices, for good or evil . . . has been propelled to the farthest corners of the earth .

From Time Magazine Archive