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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 112

An illustration from American telephone practice, 1905, leaf 112
If the cell fails to work, examine itsterminals for poor connections. If the zinc is badly eaten, replaceit with a new one. If this fails to improve it, throw out the solutionand refill as at first. If now the cell does not work properly, theporous pot or carbon element may be soaked in warm water,… … FIG. 6S.-BAG TYPE LECLANCHE CELL. it seldom pays to attempt to repair a negative element after it hasbecome ineffective. The Bell Companies before their almost universal adoption ofcommon battery systems used in their long-distance work, m con-nection with the solid-back transmitter, another form…

Telephone

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