Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 166
-called desk set has become more and more popular,particularly in the case of busy men who are compelled to use theirtelephones many times a day. Desk sets are usually made in thiscountry of the general type shown in Fig. 123, although the variousmanufacturers have modified the design in many… … FIG. 119.-DKY-EATTERY WALL SET-CLOSED. battery is usually arranged in a drawer of the desk or on the floorat some convenient point near the desk. The arrangement ofcircuits in a desk set involves several considerations not found inthe circuit of a wall set. The wall set is usually complete in…
Telephone
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