Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 198
Fig. no MOTION PICTURE ELECTRICITY 191 When the above points are properly attended to, thenthe vertical carbon setting as illustrated in Fig. no willproduce unequaled results, practically as good as can behad with direct current for the same number of wattstaken from the line. In closing this… … Fig. in trie arc, I want to say that the carbon settings illustratedin Figs. 103 and 105 may also be used when the arc iscontrolled by the Hallberg Economizer, although there isno particular advantage in setting the carbons that way,besides it requires a more expert operator to handle thecarbons…
Motion picture theaters · Electric lighting
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