PAGE #12 "2810" SERIES with a built-in monitor speaker and volume control. (See illustration on Page 10.) The "2820DA" with its individual monitoring facilities is also excellently given to application as a channel of stereophonic power amplification. Two P.E.C. "12815-16" 15" PM Coaxial Speakers in enclosed bass-reflex baffles are recommended to utilize fully the audio output from the "2820DA" amplifier and to provide more nearly optimum distribution over the audience area. Included are 100 foot speaker-amplifier cable and polarized connector assembly; a 50 foot inter-speaker cable and polarized connector assembly. (See Page 6 and Page 7 for full description and illustration.) CONSERVATIVE APPLICATION: For the projection of 35mm motion picture film with the conventional optical sound track; indoors and outdoors, where a picture of excellent brilliance, size 10.2' x 14' is adequate; amplification and speaker systems will accommodate the average auditorium seating up to 1000 persons. ELECTRICAL POWER REQUIREMENTS FOR DUAL INSTALLATION: 115 Volt, 1 phase, 60 cycle current - Ideal: 3.5 K.V.A.; minimum 2.8 K.V.A. "2810" Series also available on special order for operation from: 115 Volt, 1 phase, 25 cycle current. 115 Volt, 1 phase, 40 cycle current. 115 Volt, 1 phase, 50 cycle current. - Same price as 60 cycle. Operation from 220 volt current requires a step-down transformer in accordance with the above fre- quencies and wattage. ORDERING DATA: For operation from 115 volt, single phase, 60 cycle current or from 115 volt, single phase, 50 cycle current -- but not from both -- specify one. 2 - "2810" - 2000 foot capacity, 1000 watt 35mm Motion Picture Sound Projector Complete. 2 - * - Series II Coated f1.9 Projection Lens; focal length as selected from Lens Chart on Page 29, and from Lens List on Page 14. 1 - "2820DA" - 20 watt Amplifier at 2% distortion, with built-in monitor speaker and volume control. 1 - "3999" - Amplifier Power Cable. 2 - "12815-16" 15" PM Coaxial Speaker in enclosed bass-reflex baffles. 1 - "3714" - 100 foot Amplifier-Speaker Cable and connector assembly. 1 - "3712" - 50 foot inter-Speaker Cable and connector assembly. The above seven items afford a complete dual installation with all necessary cables, lenses, etc., ready for operation from the specified electrical supply. (See equipment price list and parts price list for total cost of above dual installation.) APPROXIMATE WEIGHTS AND DIMENSIONS - EXPORT PACKED: Case No. Gross weight; lbs. Net Weight; lbs. Dimensions-inches Contents 1 279 190 20 x 26 x 41 1- "2810" Projector & Lens 2 279 190 20 x 26 x 41 1- "2810" Projector & Lens 3 105 54 14 x 24 x 26 1- "2820DA" Amplifier 1- "3999" Power Cable 4 122 55 17 x 29 x 36 1-"12815-16" Speaker 1- "3714" Speaker Cable 5 122 55 17 x 29 x 36 1-"12815-16" Speaker 907 lbs. 1- "3713" Speaker Cable LOT EXPORT BOXING CHARGE $20.00 VARIATIONS: If an interrupted program is not considered objectionable, one Model "2810" Projector may be de- ducted; Model "2820DA" Amplifier will accommodate either one or two projectors.