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 126
the instrument. West ninstruments are direct reading and dead beat. Although the scales have practically uniformdivisions, it is not assumed in the calibration that they are uniform, and the scales are notprinted or engraved. The method of calibration consists in laying out each large divisionof… … KiG. 632.—Weston Portable voltmeter, inspectors style. This instrument is provided with areversmg Icey. Instead of the regular binding posts, pins are used with which connectionsare .made by means of contact cups attached to flexible cords. These contact cups areconvenient m making connections, or…
Electrical engineering
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