general connection of the instru-ment, is shown diagrainatically in fig. 11. The segments of the rotary switch are mounted upon hard rubberand the spring through which contact is made with the several seg-ments is insulated from the shaft by which it is operated, in order toavoid stray circuits… … BINDING POST BATTERY SWITCH Fig. 11.—Diagram of interior connections of electrolytic bridge. tion. The shaft operating the switch carries, just below the handle, abeveled collar upon which are three graduations, numbered 10,100, and1,000. These various resistances can be successively thrown in as…
Soils Analysis · Electric apparatus and appliances
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