International projectionist (Nov-Dec 1933)

Page scan 00041 from International projectionist

Record Details:

Title:
International projectionist
Date:
Nov-Dec 1933
Publisher:
New York : James J. Finn Publishing Corporation
Volume:
International Projectionist (Nov-Dec 1933)
Leaf #:
00041
Language:
English
Collection:
Technical Journals
Format:
Books
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
International Projectionist presented the technology of cinema sound and image projection while addressing the issues and concerns of union projectionists. -- David Pierce, 2013
Date Added:
September 12, 2024
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0JECTI0NIS1 Edited by James J. Finn A New HEAVY-DUTY 205-11 5^A^f *7 1. LONG LIFE — insured by a special processed filament. 2. HIGH DISSIPATION— from a special carbon-covered metallic anode. 3. HIGH EFFICIENCY— achieved by the new design in grid structure. 4. NO ARCING— the plate and grid leads are farther separated from each other. 5. RIGIDITY— the structure is supported at four points. incorporating in its design the new trend in tube engineering toward — carbon anodes The new AMPEREX 205-D is truly a heavy-duty tube. It will dissipate more than twice the power of the standard 205-D without the least trace of gassing or overheating. The anode of the AMPEREX 205-D has all the advantages of its carbon counterpart, such as "black body" radiation, getter action, as well as rough surface. This new 205-D is superior because it is not fragile. Light in weight, this tube is less bulky than other 205-D's. Positive contact throughout is assured because the anode of the AMPEREX 205-D is welded to its supports. Rejuvenate your amplifier with a set of new AMPEREX heavy-duty 205-D's. You will be astonished at their power-handling ability Distributed by all Branches of National Theatre Supply Co. AMPEREX ELECTRONIC PRODUCTS, Inc. 501 Madison Avenue New York, N. Y. December 1933 Vol. 6 No. 3 A magazine devoted to better visual and sound reproduction 25c a copy $2.00 a year