Electrical and scientific instruments and apparatus : november 20th, 1899 (1899)
Elmer G. Willyoung & Co · New York : E.G. Willyoung · leaf 84
sent toresponsible parties ; there has not been time to secure a cut of therevised model for this catalogue. STARJDARD LOW RESISTAXCES FOR USE WITH THEIVIEEYOUWO ». R. POTENTIOMETER. W4530. 1. Ohm, to carry 0.15 to 1.5 amperes |20 00 W4531. 0.1W4532. 0.01 1.5 • ■• 15 • • < 30. .. « 150 • ■• 150… … Fig. 80. Diagram op Checking Potentiometer. THE CHECKING POTENTIOMETER. The requirements of modern Central Stations, Municipal Laboratories,City Police and Fire Department Bureaus, etc., are such as to necessitatethe employment of very large numbers of Portable and Switchboard Voltand Ammeters.…
Electric apparatus and appliances · Equipment and supplies
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