Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 138
is spoken of as a io,ooo-ohm magneto, and the 10,000refers not to the resistance of the bell magnets or the generatorarmature, as is often supposed, but to the external resistancethrough which they will successfully work. A good bridging generator should ring twenty looo-ohm bells inmultiple over a… … FIG. 86.-MANUALLY OPER.ATED: SHUNT. to have the armature winding shunted out of the line when thegenerator is not in use. Especially is thiS: desirable where morethan two telephone instruments are placed in series in the samecircuit. Under these conditions, unless some by-path is affordedaround the…
Telephone
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