American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 166
if necessary, inserting moreor less resistance in the galvanometer cir-cuit. The deflection is noted. The switcts is then turned to the right, which act cutsout the unknown resistance x and in-serts the rheostat r. r is adjusted until adeflection similar to that obtained withthe unknown resistance… … CAPACITY TESTS. It is frequently desirable to know the electro-static capacity of a wire orcable. This capacity may be ascertained by the aid of a standard condenser andcertain other apparatus, shown theoretically in Fig. in, in the manner to be describ-ed. As has been stated, the capacity of the…
Telegraph
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