Motion Picture Herald (Jan-Mar 1955)

AUTOMATIC DEVICES CO.. 2121 S. 12th St.. Allentown. Pa. Motor-generator sets for d.c. supply from a.c. lines. STANDARD MODEX (“Stabilare” No. 1373): A complete package unit with generator, ballast resistors, across-the-line starter and control panel; available in most output ranges and regular voltages, 60 cycles (other line conditions accommodated on special order). DISTRIBUTION: All theatre supply dealers. THE BALLANTYNE CO., 1712 Jackson St.. Omaha, Neb. Projectors, Arc Lamps, Rectifiers, Pedestals, magazines. Soundheads. Amplifiers. Horn Systems. Drive-In Speakers, Drive-In Directional Signs, Prefabricated drive-in screen towers. COMPLETE SOUND SYSTEMS: Arranged in five capacity groups — to 12S0 seats (with Na 39 horn systems), Models 530, 630, 730; up to 900 seats (with Na 20 horn system) Models 520, 620, 720; Up to 600 seats (with Na 14 horn system). Models 514, 614, 714; up to 350 seats (with No. 11 co-axial two-way speaker). Models 511, 611, 711; up to 350 seats (with HF-7 “Silver Spiral” speaker). Models 507, 607, 707. Sound systems also available with Altec-Lemsing horn systems. COMPLETE STEREOPHONIC SOUND SYSTEM arranged in four models. Model 6400 series (60 watt) for larger theatres. Model 3400 series (30 watt) for for medium sized theatres and Model 2400 series (20 watt) for smaller theatres. Model 4452 for drive-ins. SOUNDHEIADS: Designed for use with all standard makes of projectors, and adaptable to Power’s. Model 6 has directly connected all-gear flexible soundheadprojector motor drive, vibration-filtering exciter lamp mounting, isolated sound feed sprockets, gyroscopically controlled rotary scanning drum, constant axis optical system carriage, prefocused exciter lamp. Gfear boxes for 25-, 50 or 60-cycle current; boxes interchangeable. Model 9, a later development with new film travel, gear box, simplified drive, oil damped filter fly-wheel, patented tilt-out exciter lamp holder, with all moving parts in sealed ball-bearings. STEREOPHONIC SOUNDHEAD: Model SX400 button-on with 4-track pick-up. HORNS AND SPEAKERS: Three two-way systems with cellular high-frequency horn (alnico 5 PM driver), 15-inch PM low-frequency speaker unit mounted in acoustically reinforced horn baffle; and two small theatre models (HF-7-SS and No. 11). Model 30 has two low-frequency units; dividing network crossover at 500 cycles; five-step high-frequency attenuation for acoustical adaptation to auditorium. Model 20 similar to No. 30, but with single low-frequency unit. Model 14 has smaller low-frequency baffle with simpler high-frequency cellular horn mounted on top for adaptation of units to smaller theatres. Model HF-7-SS, for auditoriums up to 350 seats, has a “Silver Spiral” speaker mounted in horn baffle for full frequency output. Model 11 has two-way speaker unit, combining cellular high-frequency horn by means of an acoustical coupler, with dividing network and horn baffle mounting. Also AJtec-Lansing horn systems. HIGH-INTENSITY ARC LAMPS: Model 4579, 45-70 amps., arc magnetization by Alnico 5 permanent magnet; 14-in. reflector at 32-in. working distance for optical efficiency with f/20 lens; each carbon fed by independent screws with 12-in. travel on positive; mirror flame shield and dowser operated by handles on both sides; finished in grey wrinkle with anodized aluminum trim. Ballanfyne magnefic soundhead. RECTIFIERS: Six sizes of tungar rectifiers, in single or three phases; 40 amperes, 4-tube; 60 amperes, 4-tubes; 80 amperes, 6-tubes; 90 amperes, 6-tubes; lOO Durably tonsfruOed, rontrolled brightness factors for any type of theater. amperes, 12-tubes; 130 amperes, 16-tubes. All models are finished in gray baked-on wrinkle paint. type. PEDESTALS: Two regular theatre models, either available with upward-tilt equipment carriage for drive-in theatres. Model 1500 is straight-column type; Model 1800 has forward slant (streamline effect). Lamp and motor switches available for mounting on either. EXCITER LAMP SUPPLY: Model N50-D, tube type for two lOv, 5 amp. lamps, DC and also 50 x 44 AC AMPLIFIERS: Amplification units for regular thea'res, in dual or single channel cabinet ; MX, RX series for drive-in theatres; SX series for stereophonic sound. Dual channel system (PD-56) has two amplifiers with switch changeover, monitor and its amplifier built in. PD-55 provides single channel in dual cabinet for adding standby (PD-50), single channel in single channel cabinet. All volume controls of step type with silver contacts. Also available axe speaker-amUfier equipment for cry-rooms, etc. (PD-52) ; hearing aid amplifier (PD-53); monitor cabiiiet (PD-54). The MX S^es for drive-ins provides systems for from 400 to over 1,000 cars. MX-1 single-channel 200w; MX-2 dual channel 200/400w; both systems include MX-ZSA ramp control panel to monitor or cut out any speaker section; room panel accommodates cabinet for non-sync, radio, etc. The RX Series for drive-ins provides systems for from 200 to 600 cars. RX-11 single chaimel 125w; RX-12 dual channel 125/250w; both systems include RX-228A ramp control panel. The SX-425 preamplifier including 4 SX-420 preamplifiers and 1 SX-421 preamplifier power supply installed in one SX-422 4-unit cabinet with volume control and changeover; SX-42S booth monitor includes SX-426 monitor and amplifier instailea in SX-427 cabinet for monitoring each channel and all channels simultaneously in stereophonic sound, SX-435 power amplifier includes 4 SX-430 power amplifiers (each 30 watt) installed in one SX-431 cabinet; SX-465 power amplifier includes 4-SX-460 power amplifiers (60 watt) installed in one SX-461 4-unit amplifier cabinet; SX-2425 complete amplifier assembly including 3 SX-2422 combined power amplifiers (20 watt) and preamplifier installed in one SX-2421 4-unit amplifier cabinet, SX-2428 booth monitor includes SX-2426 monitor and amplifier installed in SX-2427 cabinet. PROJECTORS: Model BW (mfd. by Wenzel Projector Ck).), oilite bearings, drive a stationary stud turned by main drive gear, lens mount with adjustments front of case, framing light and full-size door on operating side, re.ar shutter, provisions for 4-inch lens mount. DRIVE-IN SPEAKER: types. AX90, Doub'l Coae, PM speaker with aluminum voice coil, alumizite treated diaphragm, and two cones, one superimposed on the other for protection from weather*, in a diecast aluminum housing with baked finish in several contrasting colors, junction box of same housing design, with or without downlights, speaker with straight or coiled cords. AX 45 overflow crowd speakers consisting of bell-shaped marine all-weather speakers, complete with box cap and volume control. DRIVE-IN SPEAKERS: Type AX and QX double cone PM speaker with aluminum voice coil, Alumizite treated diaphram and weather treated cones. Front cone fits over rear cone for protection from weather and is replaceable at the speaker post. Die-<»st aluminum housing with baked enamel finish in several colors. TYPE EX AND HX single cone speakers in case and finished with or without downlights. AX45 single bell with box cap and volume control. DRIVE-IN SIGNS: New cast aluminum signs with letters cast as a part of the aluminum housing for ramp signs, enter and exit, and directional signs. Available for post mount or wall mount. ★ (ALSO SEE PAGE 19) 2 Types of Metallic screens to choose from, competitively priced, single weight or double weight screens. ★ Extra bright' white matte screens available for extra wide theaters. ★ Tops for Cinemascope and large screen picture reproductions. See your Local Supply Dealer (f/r contact us direct jor jurther injormation') BODDE SCREEN COMPANY • 8829 VENICE 8LVD. • LOS ANGELES 34, CAL. SCREEN TOWERS: Prefabricated laminated wood. Available as complete tower or trusses can be purchased only. Designed for drive-in theatres by drive-in engineers. Can be shipped by common carrier. Available in 56 and 64-foot trusses, curved or straight, and any width. Trusses set 10-feet on center and face can extend 4feet beyond eng leg for wing. DOMESTIC DISTRIBUTION: Authorized theatre supply dealers (name for specific territory available from manufacturer). Cable Address: BALCO. Export Agent: K. Streuber & La Qiicotte, 250 West 57th St., New York 19, N. Y. (cable KASTREUBER). BAUSCH & LOMB OPTICAL CO., 658 St. Paul St., Rochester, N. Y. Projection lenses. SUPER CINEPHOR: Cbated lenses working at an aperture of f/1.8, available in focal leng;ths from 2 through V/i inches in 54 inch steps, 4)4 innch f/1.9 and 82 Motion Picture Herald, March 26, 1955