Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 204
210. Ifthe economizer is made for 220 volts, then the line wiresare connected to 1 and 2 for 200 volts; on 1 and 3 for 210volts, or to 1 and 4 for 220 volts (see diagram Fig. 112). MOTION PICTURE ELECTRICITY 197 Some operators desire varying candlepower at the arcto accommodate lighter, or more… … the plug in terminal No. 2, a heavy amperage is secured.Unscrew the plug and put it in. No. 3 and a medium cur-rent is secured, and for still less light, unscrew the plugand put it in terminal No. 4. This arrangement is exceed-ingly simple, cheap and practical and will never wear outor give…
Motion picture theaters · Electric lighting
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