From Wikipedia, the free encyclopedia
In
electronics, a B battery is any
battery used to provide the
plate voltage of a
vacuum tube. It is sometimes colloquially referred to as a "dry
battery" (although there's no reason why a "wet" battery of
suitable voltage couldn't be utilised for the purpose) The term
comes from the days of valve (tube) radios when it was common
practice to use a dry battery for the plate (Anode) voltage and
a rechargeable lead/acid "wet" battery for the filament voltage.
Even when the plate voltage rail is fed by a power supply
rather than a battery, it is generally referred to as the "B+"
line.
Eveready #762-S 45 Volts
Radio "B" Battery (Portable size)
L 4.125" W 2.5" H 5.75" ca. 1942
"B" Battery circuit of a Triode (white area)
See also
-
A battery (vacuum tubes)
-
C battery (vacuum tubes)
External link
-
Instructions for Operating The Crosley 51 Radio Receiver
Examples of usage of A, B, and C batteries in an early
radio.
Categories:
Electric batteries |
Vacuum tubes |
Battery shapes |
Electronics stubs