In six months or a year he'll make an effective radio tube, I'll bet.

"Radio tubes work only one way, which is why they can act as rectifiers."

The business was the second corporation licensed to produce radio tubes.

DuMont was hired as vice president and production manager for radio tubes.

Finally, because it didn't burn out like the radio tube, it was much more reliable.

This was a dozen years before De Forest invented the form of radio tube now in general use.

But the worst thing these guys do is steal a radio tube so they can listen to an underground deejay.

It goes right through, like electrons through a radio tube grid."

The last illusion of adventure died as the radio tubes lost their glow and the engine cooled.

A radio tube adjusts current flow when it's operating at forty million separate signals a second.

"I need radio tubes and so forth," Spock explained.

"What happens in a multi-grid radio tube when the suppressor grid is hanging free?"

I might even say better, since our business includes the use, maintenance, and development of radio tubes; your tubes are not too different from ours.

The electronic revolution, which swept the vacuum radio tube away 40 years ago, may be about to do the same to the lowly light bulb.

"Gassy," the man said, looking sternly at the radio tube before he threw it into his toolbox.

Kirk looked at him in astonishment The first officer added, "I need radio tubes and so forth.

There were three cheap radio tubes.

"He also says that there were a lot of radio tubes in the brute, as well as a thundering great magnet.

As a part of this, he set up one of the first radio tube manufacturing facilities in Russia, becoming the operations director in 1917.

Several years later, De Forest invented the prototype of what became the standard radio tube - the first effective device for electrical amplification.

The two radio tubes glowed.

But what has Cantrell's Comet got to do with the high cost of living-or with radio tubes?

With the advent of the radio tube and electronics, other detection-only systems were developed, but all used continuous waves and could not measure distance.

After graduation, he became a teacher at the adult education center of the Beijing Radio Tube Factory.

It uses oscillating radio tubes to produce electronic pulses at two supersonic sound-wave frequencies.