The Educational screen (c1922-c1956])

The Sonomaster is a completely self-contained instrument with its own powerful amplifier and speaker. The amplifier is a four-stage, six-tube unit including rectifier. Power output is 14 watts and the amplifier has separate channels for microphone and phonograph, since in addition to its fine record-playing qualities, the Sonomaster is also an efficient public address system. A 10-inch heavy duty permanent magnet dynamic speaker (25 watt capacity) with remarkable fidelity of performance on both speech and music at all volume settings has been expressly designed for the Sonomaster. The new instrument operates on 50 cycle, 110-120-130 volt AC. The export model is identical except that its operation is from 50-60 cycle, 220-230-240 volt alternating current sources for which a voltage selector is provided at no additional cost. Considering the incorporation of so many quality features, the Sonomaster has a high degree of portability, weighing but 40 pounds. The outside dimensions of its beautifully finished case are 22}^" long, \6'/z" wide and 11" high. Revere Markets New 16mm Camera With this new 16mm Magazine Load Camera, Revere Camera Company made their entry in the 16mm motion picture field before 200 guests at the Stevens Hotel in Chicago. Introduced to the Midwest photographic trade, along with the new Revere "16" Sound Projector, the New Revere Camera camera embodies many advanced features, including a built-in micromatic telescopic view finder. Twin-Speaker Unit for Kodascope FS-IO-N A Twin-Speaker Unit, offering greater sound volume and definite gains in tonal quality, is available now. in strictly limited quantities, as standard equipment with Sound Kodascope FS-IO-N Projectors. The unit consists of two twelve-inch speakers built into the halves of a convenient carrying case that can be set up in several ways — joined or separated — to make possible optimum sound coverage in any auditorium. Set side February, 1948 Twin-Speaker Unit by side, placed at an angle to cover the audience, or located at opposite sides of the auditorium stage or platform and connected by an accessory cord, the twin speakers offer a flexilile means of adju.sting sound to the arrangement of the seats and the size and shape of the auditorium. Since the speakers utilize the full output of the amplifier, there's greater sound volume when it's needed. The Sound Kodascope FS-IO-N projector will be available with either the single speaker or with the twin speakers. Radiant Screens Join the "Service" at Home And Abroad The popular 52" X 70" Portable Tripod Projection Screen designed by Radiant Manufacturing Corp. will play an imi ortant role in showing educational and recreational films to our Military Personnel in Germany, Korea, Japan and China. Radiant has just received a new order for over 3000 of these Projection Screens, the first to be built in accordance with new combined 16mm. SOUND PROJECTOR AiytKlflER, SPEAKER AND SCREEN — AltIN. -ONE — .5M^J.t, COM.PACT CASE WElBXlNU lESSTBAN 3) IBS. The New Under 31 lb. "Bantam" at $325 Gives You BIG Projector Features Pjus Many New Exclusive DeVry Refinements * Brilliant, Flickerless Pictures * Amazingly Life-Like Sound * 2000 <t. Film Capacity * 750-1000 Watt Illumination Alight Out-Put Exceeds 200 Lumens * Sound and Silent Projection * Fast Motor-Driven Rewinding * Coated Projection Lens * Coated Condenser Lens * Automatic Loop Setter * Rotating Sound Drum * Prefocused Exciter Lamp * Simplest Film Threading * Instant, Positive Tilting * Precision Built of Quality Materials * Absolute Film Protection ■k Motor Driven Forced-Air Cooling * Operation on Either AC or DC Singit; Case ■'Banlam" with buih-io 6.inch ALNICO 5 permanent magnei speaker, is readily detachable for placement at screen as desired. Dual Case "Bantdtn" projector an4 1 mpltfier in ooe I .»e. 8" AIJJICO S permanent magnet speaker in separate matched case. 3y ONLY FROM DeVrt da rM (C 1*ntni piaiK'an ira^ri and bwll be <>m MM* iraftunM vkow 3$mm t^wpintnl h intd to pio 4«n thi ptrtrct ihow w Itw WsiKi Tiatf Ititottn DE VRY CORPORATION ES E2 I 1111 Armitage Ave., Chicago 14, III. ! Plaota 8iv« ut fuH partkukiM on riia n«w 0«Vir"BmitaiH'* E I t I 97