We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
Projection Engineering, September, 1929
Page 1
TheNewAMPlION Oiant
DYNAMIC cctlR™ UNIT
is the Heart
of your
SOUND /SN EQUIPMENT
AMPLION— 2 STAGE AND 3 STAGE POWER AMPLIFIERS
Finest available on the American market. Have the lowest hum level of any A. C. amplifier. Delivers a fiat line characteristic over audio frenuency range, from 25 to 8,000 cycles.
AMPLION EXCITER— For batteryless installations. Furnishes 3 amperes of direct current at 8 volts, without audible alternating current hum, from a 110-volt 60cycle supply. One EXCITER will supply energy to charge the fields of from 1 to 3 dynamic Horn Units.
AMPLION MICROPHONE INPUT AMPLIFIERS
A — 1 stage amplifier for use with Amplion microphone, the usual form of grid bias Is not used, due to use of an original circuit
AMPLION MICROPHONES Made in 3 models Finest instrument in Europe or America, designed for hard commercial usage. Blasting is practically eliminated and the granular hissing sound is reduced 80% less than in other types.
AMPLION EQUIPMENT IS HEAD AND SHOULDERS ABOVE OTHERS IN
QUALITY AND PERFORMANCE
AMPLION group address equipment has been designed to a standard, not to a price, with the result that marvelous quality and volume, second to none, are realized.
AMPLION builds group address systems to fit any
requirement, and AMPLION engineers are prepared to cope with any acoustical situation indoors or out, such as found at railroad depots, county fairs, resorts, racetracks, football and polo games, skating rinks, auditoriums, hospitals, factories, stores, theatres and hotels.
New Amplion Giant Dynamic Unit
As illustrated above
AMPLION NEW AA-102 GIANT replaces the former A. C. 100 model. DYNAMIC AIR COLUMN UNIT Through new design we have realized a stronger magnetic field; also, due to a revolutionized internal construction, 300% greater volume is delivered at the 5,000 cycle note than before. These lii<jh frequencies make possible quality reproduction heretofore unattainable.
Write for Catalog of Complete Equipment
Amplion Exponential 10 ft. Air Column Horn
Specially designed to reproduce the human voice and orchestral music in talking picture and group address installations.
Also Amplion Theatre Amplifier (Model 2F-2A) equipped to drive TWOAmplion 10 ft. exponential horns.
Amplion Corporation
The Sign of
133 West 21st Street
AMPLION DISC
SYNCHRONIZING MACHINE Amplion Synchronizer dell vert* .1 constant, Axed speed. Motor drives both projector nnd turntable. Coupled to the projector by .1 silent chain drive thai eliminates ribratlon to the turn
Located en Hunt hnnd front Bide of projector — thus Having spare in projection room.
of America
Enduring Quality
New York, N. Y.
'6