Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 78
lug isin the last pair of blocks, whichhave no connections. Fig. 572shows a top view of the blocksof a simple decade constructedupon this plan. o o TESTING AND TESTING APPARATUS 497 Oues. What other advantages are gained with thedecade arrangement? Ans. The single plug used with each decade is… … Fig. 575.—Leeds and Northrup dial Wheatstone bridge. Rotating switches are used instead ofplugs, which permits quicker adjustment of the resistances, adapting it to rapid working.The ratio coils are arranged as in fig. 568. There are four dials which form the rheostat.The units dial contains 9 one…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-855-554.webp)
