Watchmen's Time Detectors Operated by Batteries or Magneto Generators (1900)
Holtzer-Cabot Electric Company · Holtzer-Cabot Electric Company · leaf 109
nd on alternating circuit from 52 to 1 ro volts, whilethe Generator will be wound to give any desired current and voltage. One pairof terminals may be connected to the 75 or 100 volt winding and used for elec-trolvsis, and another pair of terminals connected to a low pressure winding of,sav. 10… … For this class of work where the alternating current alone can be obtained,we have also an adjustable transformer, shown above, in which there aie no movingparts whatever, and from which an alternating current from one to 30 amperesand up to 20 volts may be obtained. This instrument is particularly…