International Library of Technology · Scranton, International Textbook Co. · leaf 383
l types of series-parallel controller that differ considerablyin detail from those just described. They now supply con-trollers of the General Electric type, but quite a large numberof their older styles are still in use. We will describe the 46 ELECTRIC RAILWAYS. 24 28A controller. Fig. 31 shows… … d
Electrical engineering
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