Theatre Projector Junior

Scophony Theatre Projector

Junior Model

The Theatre Projector type of receiver is based upon the same technical principles as the Home Receiver and has been specially developed for use in cinemas, clubs, schools, etc. When Installed In a suitable hall the picture can be satisfactorily viewed by audiences of 500-750 at a time.

The picture size Is 6 ft. by 5 ft. of black and white colour much the same as that of the ordinary cinema. The screen Is flat and the picture Is projected from the rear.

Either a standard cinema arc or a super-pressure mercury lamp Is used as a light source.

The brightness of the screen is sufficient to permit subdued Illumination of gangways and passages as required by the Regulations of Local Authorities.

The electrical gear apart from the light control modulated oscillator is contained on a separate rack.

Two radio receivers are used of the tuned radio frequency type, one for sound and one for vision.

The vision signals are fed into a line amplifier which has gain control and HF correction control so that picture quality may be maintained Irrespective of the length of the cable. The sound signals are also fed into another amplifier of sufficient power to operate the powerful loudspeakers required for large halls.

The rest of the panels on the rack are a low-speed scanner drive unit, a high-speed scanner drive synchronous unit, and power supplies with mains switch and fuses.

The voltages do not exceed those used In a small cinema.

The Scophony public hall television projector resembles in appearance a standard cinema film projector, with Its separate rack for amplifiers and power supplies.

The apparatus Is of a type that can easily be handled by any cinema operator.

It Is possible to operate the projector from the control rack placed some distance away by using it suitable cable between the two.

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