American Cinematographer - October 1968 - 34

The System, being able to return to
the Start and rest there until the ac¬
tors are ready for another rehearsal,
or another take, results in fewer total
runs. Often, the actors are ready for
a take and the conventional loop is
already past the Start.
If the actors fluff during a take, the
System can return to the Start imme¬
diately without having to let the loop
go around.
Changes in Start or Finish preset
footages are easily made during the
session.
Rehearsal or Recording of difficult
passages can be narrowed down
manually, or, when Record precise INOUT is required, the presets can be
set for a single word, if need be.
The Sound Man is not burdened
with picking - up sync-bloops, and
switching monitor selectors. The possi¬
bilities for errors are reduced to a
minimum.

Equipment Requirements
1) Interlock Control Unit
Magna-Tech Type 158 Inter¬
lock Control Unit is used to con¬
trol a composite sync/interlock
system. The unit which operates
from multiple remote control sta¬
tions, applies the interlock volt¬
age, starts and stops the system
in Forward and Reverse, feeds
out direction information and
sensing information when the
equipment comes to a stop. It
operates with the standard 208/
230 volt 3-phase 6-wire inter¬
lock systems.
If the high-speed feature is
desired, additional high-speed
interlock motors are used.
2) Master Magnetic Recorder
Magna-Tech Type 1000 Se¬
ries, 35mm Magnetic Recorder is
available in single and multi¬
track models. The record ON
and record OFF controls for a
single track, or all tracks, and
record ON for each track of the
multi-track models, can be re¬
motely operated by momentary
make switching. The record am¬
plifiers are equipped with cir¬
cuitry to apply (record ON) or
remove (record OFF) the erase,
bias and audio in a timed se¬
quence. This is necessary to pro¬
duce continuous magnetic sound
tracks, with no indication where
the transition took place.
The rapid flywheel start fea¬

750

ture brings the recorder up to
speed in less than one second.
The tape lift assembly reduces
head-wear and prevents gumming-up of heads in reverse, and
high-speed.
3) Magnetic Reproducer
Magna - Tech
1000
Series
Magnetic Reproducer with rapid
start and tape life feature, elec¬
trical
interlock,
high
quality
sound reproduction and rapid
action flutter suppression system
is equipped to operate Forward
and Reverse.
4) Reversible Projector
Magna - Tech Type PR- 135,
35mm Reversible Projector uses
the basic Philips FP-20 mecha¬
nism. It will run release prints or
spliced work prints Forward and
Reverse, and in high-speed, in
electrical interlock with other
equipment. The composite opti¬
cal sound track is reproduced in
the normal lip sync position. The
projector can be equipped with
an incandescent or a Xenon
light source, which will show a
picture in both Forward and Re¬
verse travel, or in Forward only.
5) Footage & Frame Counter
Magna-Tech Type 9C Forward/
Reverse Interlock Counter Sys¬
tem consists of a shaft encoder
or generator, a transistorized
electronic counter and projec¬
tion readouts for displaying the
reading. The generator is mount¬
ed on, and timing belted to the
projector. The display is 4 digits,
and frame. The digital output in¬
formation corresponding to the
film footage (and frame) posi¬
tion is used to feed the Elec¬
tronic Looping Console.
6) Electronic Looping Console
Magna-Tech Electronic Loop¬
ing Console operates with the
aforementioned
(Items
1-5)
equipment. It takes the footage
(and frame) information from the
9C Electronic Counter and the
operational
command
inputs
from the mixer and/or dubbing
director, and feeds out data in
proper sequence to control the
motion and functions of the pro¬
jection, the recording and the
playback equipment. The com¬
plete integrated system, consist¬
ing of Items 1-6, operates auto¬
matically or manually.
In addition to the above, a

/ /i

Hundreds of loops needed to re-make tracks
for a single feature. The new electronic post¬
synchronization system may make this costly
and time-consuming method obsolete.

A

second Type 1 53 Electronic Con¬
trol Unit, table-top version, can
be provided for the Director's or
Client's use.

7)
Magna-Tech Monitor Selector
Type 154 is controlled from the
Processor in the EL Console. It
automatically switches the Con¬
trol Room Monitor, the Studio
Monitor, and the cue-phones in
accordance with the Selectors
which are preset.
The Cue-Track Selector has (6) con¬
trols:
Ahead of Start ON/OFF
Loop ON/OFF
Past Finish ON/OFF
FWD Only/FWD and REVERSE
Rehearse Only/REH, REC & PB
Phones Only/Phones & Studio
Speaker
The Playback Selector has (5) con¬
trols:
Ahead of Start ON/OFF
Loop ON/OFF
Past Finish ON/OFF
FWD Only/FWD & REV
Playback Only/Playback & Re¬
hearse
It can easily be seen that with prop¬
er selection of the above controls, af¬
ter a recording is made, it can be re¬
produced immediately, in the correct
sequence with the cue track, ahead
and past the loop.
In another application, the cue track
can be muted in the loop.
Separate manual overrides are pro¬
vided for both the Studio, and Control
Room monitors. *

AMERICAN CINEMATOGRAPHER, OCTOBER 1968
American Cinematographer - October 1968

Table of Contents for the Digital Edition of American Cinematographer - October 1968
