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Western Editor
Evans E. Plummer
Hollywood Editor
J. Garrick Eisenberg
Editor Donald McNicol
Associate Editors
James R. Cameron
Austin C. Lescarboura
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Vol. II
JUNE, 1930
Number 6
CONTENTS
Editorial 4
S. M. P. E. Convention at Washington 7
A Sound Printing Attachment for the Model D Continuous Printer By Joseph A. Dubray 10
The Condenser Reproducer By C. D. Feak 12
Radiovision Bids for Public Favor By Austin C. Lescarboura, Associate Editor 15
The Chief Problems of Television By George H. Robinson 17
Trouble Shooting in Amplifiers By Jas. R. Cameron, Associate Editor 18
Projection Advisory Council Honors N. D. Golden By Jas. R. Cameron 20
Radio Vouches for Authenticity of Signature By S. R. Winters 21
Excellence in Auditoriums By W. A. McNair 22
Cellulose Nitrate and Acetate Film • • By A. H. Nuckolls 24
Recent Developments in Talking Pictures By William McKay 26
Battling with the Odds of Visual Radio By 8. R. Winters 28
Powerizer Sound System Equipment 30
Departments
News of the Industry and New Developments 34
Index to Advertisers 38
■ "i ',
Published Monthly by
Publishing Aviation Engineering Radio Engineering Projection Engineering
Entered as second-class matter October 9, 1929, at the post office at Albany, N. Y., under the Act of March 3, 1879.
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Bryan S. Davis, President
James A. Walker, Secretary
Sanford R. Cowan Advertising Manager
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