Akademik

battery for supplying a constant positive voltage to the plate of a vacuum tube

: an electric battery connected in the plate circuit of an electron tube to cause flow of electron current in the tube — called also plate battery; compare a battery, c battery

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

[1920-25]

B battery,

Radio, especially U.S. an electric battery connected to the plate lead and to the filament of the electron tube so that the electrons can flow through the tube.