Motion Picture Herald (Jan-Mar 1956)

A New Low Price! Cinematic IV Adjustable Prismatic Anamorphlc Lenses with Permanent mounting brackets for all projectors. (%/v ^375 BEST VALUES In Metallic Seamless Screens, Aperture Plates and Everything for CinemaScope S.O.S. CINEMA SUPPLY Corp. Dept. A. 602 W. 52 St., N. Y. 19— Cab/e: Sosound SPECIAL PURCHASE! Another shipment of Simplex rear shutter double bearings has arrived from large circuit. High numbers, latest features. Good condition, for regular or standby use. A steal at only $99.75 each. *STAR CINEMA SUPPLY CO. (21 W. SSth Street, New York 19, N. Y. IMPORTANT NEWS/ SHOWMEN — Before Buying your Stage Equipment why not ask your supply dealer to show our complete line or send for FREE Literature and price list now. Save time and money by doing business with A merica’ largest manufacturer. HARTZELLE, ALABAMA Engineering Department. Service organizations will adjust and repair Ampex sound equipment at no charge during the warranty period established for the various Ampex units and at competitive rates after the warranty has expired. New service agencies will augment service facilities now provided by Ampex dealers maintaining service departments. Named to date are Electronic Engineers, Inc., Chicago; Manufacturer’s Electronic Service, Hollywood, Calif. ; and the Robert Dollar Company, San Francisco. Carpet Lining with "Anti-Friction'' Top A SPONGE rubber carpet lining with a fiber topping designed to give it an “anti-friction” surface has been developed by Hewitt-Robins, Inc., Stamford, Conn. Called “Tex-Top,” the new “economy-priced” product complements the company’s first-line carpet underlay called “Kik-Kwik.” It is explained by the manufacturer that while both of its linings have “anti-friction” treatment, they are acquired in different ways. That of “Kik-Kwik” is achieved by a new method of rubber compounding, it is stated, while the new lining uses fiber topping. The new product is made in gauges of 3/16 and Inches; widths of 36 and 53 inches; and lengths of 20 yards. Radiant Announces New Projection Screen A NEW SCREEN especially designed for “all types of wide-screen projection” has been announced by the Radiant Manufacturing Corporation, Chicago. It has been trade-named the “Peripheral Vision Superama Screen.” The screen was thoroughly field-tested through installations in theatres in all parts of the country for a period of three months, according to A. Wertheimer, executive vice-president of Radiant. It is now available, he added “at the same price as is in effect on our previous models.” Ampex Single-Track Magnetic Sound Unit A SINGLE-TRACK magnetic sound system, complete with two reproducers, for reproduction from CinemaScope prints in theatres having only one amplification-speaker channel (as for optical sound) has been announced by the Ampex Corporation, Redwood City, Calif. The cabinet provides a preamplifier for magnetic sound chageover for two projectors, optical-magnetic selector switch, gain control for magnetic operation, and self-contained power supply, forming a unit designed to be mounted on a projection room wall. Cut-outs on the top and bottom of the cabinet permit convenient conduit runs, and terminal boards for connection to external cabling are located convenient to the cutouts. Louvers on the top and bottom panels of the cabinet are designed to provide for cooling. Gain and changeover controls have been combined into a single operating knob, located on the right-hand side panel of the cabinet. An auxiliary changeover control and indicator is also located on the front panel. The optical-magnetic switchover control is located on the right-hand side panel of the cabinet. Both the gainchangeover and optical magnetic switchover control shafts may be extended along the projection room wall to the second projector station for operation at either position, through the use of optical extension rods. Gain indication is provided on a dial, visible from the front of the cabinet. All power functions, including the on-off switch. Indicating pilot lamp and fusing, are located on a panel mounted on the rear wall of the cabinet, accessible through the front panel. The front co\’er may be removed for access to the interior of the cabinet. Equalization connections are arranged on a terminal board mounted directly on the amplifier. The preamplifier design is based upon one used by Ampex in numerous magnetic recording applications, the company announcement states. omponent parts of the Ampex single-track magnetic sound system. 24 MOTION PICTURE HERALD, JANUARY 7. 1956