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©C1B 208520 November 1933
INTERNATIONAL PROJECTIONIST
RGJIrXTIONlSI
With Which is Combined PROJECTION ENGINEERING Edited by James J. Finn
Volume 6
NOVEMBER 1933
Number 2
Index and Monthly Chat 5
Mathematics for the Projectionist, III 7
Gordon S. Mitchell and Harlan R. Asquith
Graphite Anode Tubes for Sound Reproducers 13
D. E. Replogle
Feature Title Embellishment 14
Hugo Lateltin
The History of the Animated
Cartoon 15
Earl Theisen
The Code 16
An Editorial
Expect Code Interpretations
Favorable to Labor 17
James J. Finn
Projection Room Switches 20
Sidney Wein
'Automatic' Change-Overs Not
Practicable Now 21
George Edwards
Greater Efficiency With Present
D.C. Arcs 23
Joseph Bliven
Hail Barrows' Craft Aid at Boston Banquet 24
Utilizing the Local Radio Man in Emergencies 25
Aaron Nadel Technical Hints News Notes 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
420
February 8, 1932, at the Post Office at New York, N. Y. under the act of March 3, 1879. Entire contents copyrighted 1933 by James J. Finn Publishing Corp.
International Projectionist is not responsible for personal opinions appearing in signed articles in its columns.
MONTHLY CHAT
|)ECIDEDLY a hit is the series ot articles on mathematics for the projectionist, authored by Gordon S. Mitchell, now current in these pages. For years now we have speculated on ways and means to goad our readers into letter-writing, but no question-and-answer series of articles rang the bell until the Mitchell articles hove on the scene. There must be other topics which would prove equally interesting to a majority of readers, and we certainly would like to receive a few suggestions along this fine.
I~)UR wearied postman is further burdened by hundreds of letters of thanks from organizations and individuals relative to our distribution of code information immediately following the close of the Washington hearings. Proud to serve such an appreciative audience, I. P. is content to say "You're welcome".
"R CAVICTOR CO. is reported as about ready to form a $30,000,000 subsidiary to promote its television interests. Said information wins little credence from us, but it does serve as a reminder to have another look into the present state of the television art. The new N.B.C. studios in Radio City are thrice prepared down to the last circuit for television broadcasting — when, as and if a number of technical problems and one big merchandising problem are settled. The answer to the question, "Who's going to pay the tariff?" will determine the possibilities for television within the near future.
"Y^"E don't relish some of the practices now current in the theatre equipment field, particularly with respect to compulsory servicing, the blanket repair and replacement part contract, so-called, which is sponsored by Erpi, and the release of false information regarding operating values of certain types of sound tubes in order to harass the independent tube manufacturer. It occurs to us to ask why, if RCA can sell its sound reproducing equipment outright and not impose compulsory servicing burdens on exhibitors, Erpi should not do likewise.
Maybe the impending suit of 102 New York exhibitors against Erpi will provide the answer to some of these questions.
PROJECTIONISTS' modus operandi makes them easy marks for colds which often develop into something more serious. Read the Cold Code within, and watch yourself.
Every year at this time we make an appeal for support of the Xmas Seal drive. A pleasant duty on our part, for we have personal knowledge of the aid rendered to projectionists by the organization backing the Seal drive. Buy Xmas Seals.