B battery

noun

Electronics.

1. an electric battery for supplying a constant, positive voltage to the plate of a vacuum tube.

Word History and Origins

Origin of B battery¹

First recorded in 1920–25

Example Sentences

The same day, she met members of the Canadian Army at Windsor Castle at an event to mark the 150th anniversary of the A and B batteries of the Royal Regiment of Canadian Artillery.

From BBC

“We’ve got too high a voltage on the B battery,” said Bob, after a moment of study.

From Project Gutenberg

Farrel," the captain declared, "if I had ever had a doubt as to why I made you top cutter of B battery, that last remark of yours would have dissipated it.

From Project Gutenberg

Don't connect a potentiometer across the B battery or it will speedily run down.

From Project Gutenberg

Don't fail to adjust the B battery after putting in a fresh vacuum tube, as its sensitivity depends largely on the voltage.

From Project Gutenberg