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From: ISW@cup.portal.com (Isaac S Wingfield)
Newsgroups: sci.electronics
Subject: Re: Battery Sizes
Message-ID: <14305@cup.portal.com>
Date: 4 Feb 89 20:47:14 GMT
References: <7288@batcomputer.tn.cornell.edu> <1405@arctic.nprdc.arpa>
Distribution: na
Organization: The Portal System (TM)
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Those batteries that were 1.6 to 2 times the size of "D"
cells were, I think, "G" size.
Back in the early days of tube type radios, several batteries
were needed, and to make it simple for Joe Public, they were
called by letters:
"A" battery for the filaments; low voltage, high current
"B" battery for the plate supply; high V, low I
"C" battery for the grid supply; medium V, very low I

I think you were confusing the "A" (filament) battery with the
"A" size (which I've never seen, maybe because all filament
supplies were called "A").

Regards, Isaac             isw@cup.portal.com