Educational screen & audio-visual guide (c1956-1971])

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rl MODEL V-25C COMBINATION SLIDE & STRIP FILM PROJECTOR COOL Venturi and Airjector cooling is the new revolutionary cooling system designed by Viewlex to make this the world's coolest projector. A stream of cool air is forced through the Airjector, which guides the flow to specific hot spots within the projector body. The Venturi chimney breaks up the barrier of msulated air which adheres to hot surfaces and bathes the lamp with a constant changmg flow of cool air. BRIL LI A NT -SpeciricaWy designed and engineered for 500 watt operation, yet delivers far greater screen illumination than most 750 watt projectors can produce. The exclusive LIGHT-MULTIPLIER opticdl system plus ootomafic condenser alignment for perfect focus every time proves Viewlex's right to projector leadership. Each condenser is coded and individually mounted for ease in cleaning just another indication of the quality that is built right into Viewlex projectors. One projector handles both single and double frame film strips, vertical and horizontal 2x2 and bantam slides. Professional quality 3", 7", 9" and 11" projector lenses available. It cannot tear or scratch your films. // }2wwx 35-01 QUEENS BOULEVARD, LONG ISLAND CITY 1, N. Y. ""••"croi,. "^'^^A, '^ /^ <^^^