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Projection Engineering, June, 1930
Page 37
Polymet Products for Sound Equipment
S the world's largest makers of essential parts for the radio industry, The Polymet Manufacturing Corporation has been able to approach the field of sound equipment with a wealth of production and engineering experience. All types of previously existing equipment have been studied and the faults of other systems eliminated in Polymet's complete new line of Sound Picture Amplifiers and Booster Systems for Photo Electric Cell Operation.
These new and better Polymet amplifying and control systems raise sound reproduction to higher levels of performance. Inquiries are solicited.
POLYMET MANUFACTURING CORPORATION
839-A East 134th Street
New York City
MANUFACTURERS OF THE FAMOUS
G.I. MICROPHONES
CARBON AND CONDENSER TYPES
2M-30W Amplifier. Four stages — Two position mixer, buttons for measuring microphone current — approximately 30 Watt output. List $600.00. G.I.C. IM-15W. Three stages. Exceptionally high gain. Remarkably free of hum. Excellent quality. Complete mike input circuit is incorporated ■within the amplifier, all run from one power supply. Adaptable to Mikes, Radio and Phonograph. List $250.00.
GENERAL INDUSTRIES CORP.
WALTHAM, MASS.
But
before buying those new lamps, so essential to the proper projection of talking pictures today, consult the man in your organization best informed on efficient equipment — your projectionist. He's sure to recommend
STRONG
Automatic Reflector Arc Lamps
For Sale by Trustworthy Independent Supply Dealers Everywhere
THE STRONG ELECTRIC CORP.
2501 Lagrange St. Toledo, Ohio
Export Office— 44 Whitehall St., New York City, N. Y.
A one-man Portable
TALKING PICTURE MACHINE
A practical 16 mm. sound on disc talking picture machine. A home type projector and turntable encased in a small hand grip with an amplifier and dynamic speaker in a second case. Total weight sixtv pounds. Units available for either 78 or 33'y3 R.P.M. discs. Suitable for commercial or home use. Over 50 numbers now available for showing.
Write for dealer and distributor proposition.
Price only $350 F.O.B. New York, N. Y.
AUDIVISION
Corporation General Motors Building, 1775 Broadway, N. Y. City