Tony Meloche wrote:

Keyboard In The Wilderness wrote:

Hey I can buy A batteries, (AA, and AAA), and C batteries -- right
What happened to the B battery ???

--
Keyboard In the Wilderness

"B" batteries wee a special size used for military/industrial
applications. I don't know if they're still made or not. But there were
never really and consumer items that were designed for the "B" battery,
that's why you never see them.

Tony


"B batteries provided the high voltage to the "plates" of tubes. I
recall 90
volt units.

A batteries provided filament voltage (1.5 volts) to a lot of tubes like
the
1EQ5, where the first digiot indicated the filament voltage, and the
letters
the type of tube characteristics, and the final digit the number of pins
that
were active.
6 AQ 5 was a 6 volt amplifier with two filment connections, a plate
coonection and two grids.
However sometimes there was a cathode too (I'm getting hazy on this
stuff),
maybe the filament didn't count as two."


Ah, I learned something new today. But I stand by the essence of my
original answer - it was very incomplete, though, I see now.

Tony