Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 193
■W:o ^ o C: i-^ ^ co U X>-^ o c no iu cv o 3,-o o 5. ^ rv v- ■II *>.- 3 ■ Ex) vj … MOTION PICTURE ELECTRICITY 187 bon setting when the arc is properly controlled. I do notwant the reader to get the impression, however, that thevertical carbon setting can be used with all kinds of cur-rent controllers, because it cannot. The vertical carbonsetting was devised and recommended for…
Motion picture theaters · Electric lighting
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
