Leeds & Northrup apparatus at the Louisiana Purchase Exposition 1904 (1904)
Leeds and Northrup Company · Leeds and Northrup Company · leaf 10
iamond-shapedplug heads with sharp e< Decade Rheostat, Four Dials The dial switches of these rheostats are of a new and special con-struction which insure- good contact. The range is 9999 ohms by stepsof 1 ohm. The sides of the box are made of perforated n s to allow good air circulation and… … Wheatstone Bridge and Rheostat Thi^ is the same general construction a> the last. There are fivedials in the rheostat which has a total resistance of 10,000 ohms and maybe varied \>\ steps of .1 ohm. The bridge has two coils each of rooo, rooand to (>hms. Special rheostats and wheatstone…
Electricity · Electrical Equipment · Electric Circuits · Electronics
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