Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems (1921)
Smith, Arthur Bessey, b. 1875, Campbell, Wilson Lee · New York : McGraw-Hill · leaf 73
Fig. 56.—Detail of connector-switch bank. the armature for the fraction of a second, giving it a very noticeable lag.As explained more fully in the description of the circuits of this system, … Fig. 57.—Wiring of connector-switch banks. the introduction of these slow-acting relays makes possible the operationof the switches by simply making and breaking the calling partys loop, r*. ^y
Telephone
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
