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VISION, SCOPE & RAMA
1926
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1952 Cinerama
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1956
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2001
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Visit biografmuseet.dk about Danish cinemas
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All-Purpose Sound Reproduction
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Read more
at
in70mm.com
The 70mm Newsletter
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Written
by: Showmen’s Trade Review, October 15, 1955 |
Date:
01.07.2008 |
Caption (Picture missing): The Altec developed Switching Relay Equalizer rack, permitting
knob-control switching from TODD-AO, to Cinema-Scope 4-track, to
Perspecta, to optical print sound tracks, is shown at right. Above, Fred
Pfeiff, of TODD-AO, is seen operating the relay switch at front of the
Altec panel.
Climaxing numerous technical contributions its engineering staff has
made to the sound phases of the TODD-AO system, Altec Service
Corporation last week put into production its Switching Relay-Equalizer
which provides compatibility with all existing sound systems. The device
allows the projectionist to select the sound operation for TODD-AO,
CinemaScope 4-track magnetic, Perspecta and standard optical prints. The
Altec panel provides individual equalization and level balancing
controls for 20 magnetic tracks. On a two-projector installation, the
facilities allow setting the six-TODD-AO channels on each projector for
dentical quality; likewise the four CinemaScope channels on each
machine.
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More
in 70mm reading:
Todd-AO
The Todd-AO Projector
Showmen’s Trade Review, October 15, 1955:
Oklahoma! in Todd-AO
Todd-AO
Magna Theatres
Todd-AO Corporation
Philips Collaborated On Projector Design
Todd-AO Projection and Sound
Six track recording equipment
All-Purpose Sound Reproduction
Rodgers & Hammerstein II
Six track recording equipment
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Updated
21-01-24 |
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