Electrical measuring instruments : grand prize Louisiana Purchase Exposition, St. Louis, 1904 (1904)
Leeds and Northrup Company · leaf 10
aped]>lug heads with sharp edges. Decade Rheostat, Four Dials The dial switches of these rheostats are of a new and special con-struction which insures good contact. The range is 9999 ohms by stepsof I ohm. The sides of the box are made of perforated metal so as toallow good air circulation and… … Wheatstone Bridge and Rheostat This is the same general construction a^ tlic hi->t. There are five• lials in the rheostat which has a total resistance of lo.ooo ohms and mayhv varied by steps of .i f^hni. The bridge lia-> two coils each < >f looo. looaiul lo ohm>. Special rheostats…
