Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 54
quired on the line wire, a transformer is introducedbetween the generator and the line wires for increasingthe line voltage, in which case it is called a step-uptransformer. CONSTANT POTENTIAL TRANSFORMER For general requirements, however, we need only con-sider the step-down transformer, which…
Motion picture theaters · Electric lighting
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