B battery

American  

noun

Electronics.

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

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Etymology

Origin of B battery

First recorded in 1920–25

Example Sentences

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 The Pride of Palomar by Kyne, Peter B. (Peter Bernard)

In using either of these heterodyne receivers be sure to carefully adjust the B battery by means of the potentiometer.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)

C, carbon plug; I, iron plug; M, mercury globule; A, aerial; B, battery; T, telephone; S, adjusting screw.

From Hertzian Wave Wireless Telegraphy by Fleming, John Ambrose

As these rising and falling currents act on the pulsating currents from the B battery which flow through the detector tube and the headphones you will hear them as beats.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)

B, battery; I, induction coil; K, signalling key; S, spark gap; A, aerial wire; E, earth plate.

From Hertzian Wave Wireless Telegraphy by Fleming, John Ambrose