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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 595

An illustration from American telephone practice, 1905, leaf 595
hat the plates are alternatelypositive and negative. The extremely low internal resistance of storage batteries, andthe fact that their voltage is high (2 + volts per cell) and constantand that they are not subject to polarization, make them, allthings considered, the ideal source of current for… … FIG. 412.-ELEVEN-PLATE CHLORIDE CELL. for its energy on some outside source. Their ease of manipula-tion and general cleanliness and reliability are also strong pointsin their favor. They have long been used for supplying theoperators transmitters in large central offices, but the recent…

Telephone

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