Quote:
Originally Posted by ex 2 Base
Some of these old bell indicator boards in stately homes and vicarages worked via several Leclance cells (Might have got the spelling wrong) anyway, in square glass jars with zinc anode.
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Leclanché cells were the ancester of the modern zinc/chloride cell and gave the same output of 1½V, so you would need the same number of these instead of the number of "C"/"D" cells. Incidentally, the jar contains a solution of ammonium chloride.