Theatre Design & Technology - May 1969 - 32

RECENT DEVELOPMENTS (concluded)
demonstrator in the accompanying ill ustration is a model made available by Century
Lighting, Inc., at the USITT Conference in
Los Angeles, March 17-20.
Unlimited numbers of dimmers may be controlled in a single MEMO-Q system, and a
single master button can instantly record in
the memory all the values of acomplete
lighting setup. Different setups can be recalled at will in any desired order, and any
scene can be merged directly into any other
in which they are recorded. Setups can be
reproduced at any desired speed in any desired order-hindered only by the speed developed in the punching system.
As seen the punching system consists of a
10 button decade numbering the selection
of a desired cue by the number of that cuethe buttons being arranged not unlike those
of an adding machine. In case cues are
called up sequentially there is no need for
cue number identification: they appear in
order, true and fast. Cue numbers can also
be changed by the convenient method of
dupl icating an entire set of readings (still
another facility) with another number.
An outstanding convenience is the provision
of a solo button which, when pressed,
shuts off all other circuits to allow the assessment of th e lighting provided by that
circuit alone. However, if a change needs
to be made during the course of a rehearsal
or performance (when no untoward change
should be visible on stage). the meter reading for that circuit must be duplicated on
the potentiometer and then the circuit transferred to manual. This can then be stored.
The memory consists of ferrite cores in
various groupings up to a hundred or more.
However, pil ing up the ferrite cores may
have complexities.
The code is 5 bit, providing a 32 step intensity resolution in the memory (most other
similar systems are 6 bit with 64 steps).
The accuracy is + 1 step on either system
and so in the 5 bit code, if the setting 6V4
is called for the setting, it may be 6 or
6'/2 in execution. Since the ferrite core
memory cannot be removed for storage, a
special arrangement must be made and this
can be provided by the manufacturer: a
special print-out record facility will be installed if the prospective owner calls for it.
Century MEMO-Q console

Electric Chicken Feeders for movable scenic
units (Las Vegas)

06.01.00 The Photolamp Division of Sylvania Electric has introduced a 10 ,OOO-watt
tungsten-halogen lamp for theatre, television
and film. The lamp, which has an over-all
length of 15 inches, is available in 3200
and 3350 hours respectively. The lamps are
interchangeable with present G-96 10,000watt standard incandescent lamps.
The accompanying illustration showing both
lamps provides a graphic contrast. As with
all T-H lamps, this size has not only a
longer life than the conventional G-96 lamp,
but it also provides uniform performance over
that life span. The addition of this 10kw
lamp provides a relatively complete series
of tungsten-halogen lamps to meet all production requirements.

10, 000 watt
Sylvania

Tungsten-Halogen lamp by

Kaye Bal/and and Eve Arden Compare Conventional and more Compact TungstenHalogen 10,000 watt lamps

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