International projectionist (Jan-Dec 1935)

&PR-21935 ©C1B 256730 March 1935 INTERNATIONAL PROJECTIONIST R0JECTI0NIS1 With Which is Combined PROJECTION ENGINEERING Edited by James J. Finn Volume 8 U MARCH 1935 Number 3 Letters from Readers Index and Monthly Chat Equipment Necessary for Sound System Servicing 7 Leroy Chadbourne More Bunk Concerning 1935 Status of Television 10 James J. Finn Step-By-Step Analysis of Sound Reproducing Equipment, VIII 11 Aaron Nadell Questions and Answers on Sound Projection 14 A Modern Method to Fight Tuberculosis 14 F. M. POTTENGER, M.D. Copper-Oxide Rectifiers for Projection Arc Supply 15 The Answer to the Question: A. C. or D. C. Suprex Arc Operation? 16 Ernest Hoffman & James J. Finn A Manufacturer's Views on L. I. Lamp Conversion Karl Brenkert 18 Some Problems of Motion Picture Engineering 19 Dr. A. N. Goldsmith Projectionists Score Wide Service Work Gains 20 News Notes Technical Hints Miscellaneous Items Published Monthly by JAMES J. FINN PUBLISHING CORPORATION 580 FIFTH AVENUE, NEW YORK, N. Y. Circulation Manager, Ruth Entracht Subscription Representatives Australia: McGills, 183 Elizabeth St., Melbourne New Zealand: Te Aro Book Depot, Ltd., 64 Courtenay Place Wellington England and Dominions: Wm. Dawson & Sons, Ltd., Pilgrim St., London, E. C. 4. Yearly Subscription: United States and possessions, $2 (two years, $3) ; Canada and foreign countries, $2.50. Single copies. 25 cents. Changes of address should be submitted two weeks in advance of publication date to insure receipt of current issue. Entered as second-class matter February 8, 1932, at the Post Office at New York, N. Y. under the act of March 3, 1879. Contents copyrighted 1935 by James J. Finn Publishing Corp. International Projectionist is not responsible for personal opinions appearing in signed articles in its columns. MONTHLY CHAT THE "triumph" scored by the motion picture industry over the Tri-Ergon forces of darkness led by William Fox is best translated in terms of gains made by the lawyers for opposing sides. Here again the worst evils of patent racketeering were on display, with more than $500,000 having been expended by the defendants in the suits. Labor unions, no less than others, have ample reason for giving lawyers a wide berth. SEEMINGLY dead, the A. C. arc rises from its tomb through the medium of a spirited letter received in the editorial mail bag. Letter and answer are included herein and make for very interesting reading. CITING the "complete and abject commercialization" of the daily press, the Electrical Workers Journal states: "Labor must continue to depend upon its own newspapers and magazines . . . If there ever was a time when labor should rally around its own newspapers and magazines, it is now." Amen. NUMEROUS recent letters suggest the possibility of forming a national technical organization of projectionists. Correspondents point to the success attendant upon state projectionist organizations and suggest the welding of these groups into one national body. Now, such a plan has long had our wholehearted support, despite the record of past failures in this direction. Surely the past five years have demonstrated the need for such an organization. But I. P. has neither the authority nor the resources to effect such an organization. If only a couple of existing state organizations would adopt strong favoring resolutions . . . CONSIDER, for example, what great good such an organization could do in connection with current servicing activities by projectionists. Consider, too, the prestige that would accrue to projectionists by having organization committees pass on new equipment, legislation, etc. The possibilities of such an organization are limitless. WHILE we are on the subject of sound reproduction, we mention the fact that there are some awful whoppers relative to extended frequency range reproduction being put into circulation. A bit of research on certain equipments might be a trifle embarrassing to the authors of these extravagant — if not actually misleading — claims. MANY projectionists there are who will relish the news that the double, or 2000-foot reel, is scheduled to make its bow shortly. Many others there are who won't relish the news but will have to go through all the motions of liking it.