Worst of all, if you accidentally reversed the A and B battery connectors, you could fry your radio's precious tubes.
When the B battery is connected, it puts a positive charge on the plate of the tube.
The potentiometer must never be shunted around the B battery or the latter will soon run down.
"If you follow the yellow wire you'll come to B battery," said Wilde.
The 8-inch shell had made very short work of B battery's mess.
Weve got too high a voltage on the B battery, said Bob, after a moment of study.
In using either of these heterodyne receivers be sure to carefully adjust the B battery by means of the potentiometer.
Since the electrons do not reach the plate the current from the B battery cannot flow between it and the filament.
B battery's guns were tucked beneath some stubby full-leaved trees that would hide them from the keenest-eyed aerial observer.
Don't fail to adjust the B battery after putting in a fresh vacuum tube, as its sensitivity depends largely on the voltage.