B battery



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

Worst of all, if you accidentally reversed the A and B battery connectors, you could fry your radio’s precious tubes.
Whatever Happened to the “B” Battery? Megan McArdle December 20, 2012

When the B battery is connected, it puts a positive charge on the plate of the tube.
Whatever Happened to the “B” Battery? Megan McArdle December 20, 2012

Historical Examples

The potentiometer must never be shunted around the B battery or the latter will soon run down.
The Radio Amateur’s Hand Book A. Frederick Collins

“If you follow the yellow wire you’ll come to B battery,” said Wilde.
Pushed and the Return Push George Herbert Fosdike Nichols, (AKA Quex)

The 8-inch shell had made very short work of B battery’s mess.
Pushed and the Return Push George Herbert Fosdike Nichols, (AKA Quex)

Weve got too high a voltage on the B battery, said Bob, after a moment of study.
The Radio Boys at Mountain Pass Allen Chapman

In using either of these heterodyne receivers be sure to carefully adjust the B battery by means of the potentiometer.
The Radio Amateur’s Hand Book A. Frederick Collins

Since the electrons do not reach the plate the current from the B battery cannot flow between it and the filament.
The Radio Amateur’s Hand Book A. Frederick Collins

B battery’s guns were tucked beneath some stubby full-leaved trees that would hide them from the keenest-eyed aerial observer.
Pushed and the Return Push George Herbert Fosdike Nichols, (AKA Quex)

Don’t fail to adjust the B battery after putting in a fresh vacuum tube, as its sensitivity depends largely on the voltage.
The Radio Amateur’s Hand Book A. Frederick Collins

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