Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 63
consists of activeplates of alumimmi and inactive plates of carbon or leadimmersed in electrolyte. There are a number of differentsolutions which can be used but a saturated water solutionof pure boracic acid seems to be a favorite. The voltage 40 ELEMENTS OF RADIO TELEPHONY that each cell will…
Radio
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