Theatre Design & Technology - Fall 1978 - 32

complete selection of permanent glass color filters, spread lens,
louvers, and hoods.
For further information contact: Mr. Marvin Gelman, Lighting Services, Inc.; 150 East 58th Street, New York, NY 10022; 212/838-8633.

Datacue Memory Lighting Control
Marketronics has announced their Datacue memory lighting control system. It can handle 200 presets for 32 or 64 channels. It will
interface with any solid state dimmer and can operate in conjunction
with manual controllers. Stored, dipless, manually alterable crossfades can be accomplished. The unit is available as a portable or
console mounted. It has large digital readouts and utilizes state of the
art computer design.
For further information contact: Marketronics; P.O. Box 12641;
North Kansas City, MO 64116; 816/454-4741.

Brilliant narrow shafts of light are produced by the 5.5 volt, 26 and
27 series fixture which is ideal for lighting small objects or accenting
details on large ones.
The 12 volt, 46 and 47 series fixture in addition have an expanded
range of interchangable lamps that will give a narrow spot, wide flood
and a very wide flood in 25 and 50 watt lamps.
These low voltage units use sealed-beam PAR 36 lamps powered
by integral step down transformers operating at 5.5 and 12 volts from
120 volt AC circuits. The lower output voltages permit the use of
glare-free lamps that consume less power and generate less heat
than standard voltage lamps.
Models 26 and 46 have an enclosed lamp housing with the "bare
transformer" look; whereas the 27 and 47 models use an exposed
bulb assembly.
In addition to a variety of mounting options, lamp types and finishes, these fixtures have accessory retaining clips that accept a

Make sure your lighting instruments stay put
with Tech Theatre's exclusive

Safety
.....-_--..."Sfrap
This exclusive safety strap, made of Back-toBack Velcro8: will assure that your lights stay
where you put them. Each strap is easy to
install and reusable indefinitely. Meets U.S.
Military Specification MI L-F-21840E with
Amendment 1, and listed on ASL No. CTC-29.
Send for complete details.

TECH THEATRE INCORPORATED
4724 Main Street - Lisle, Illinois 60532
Telephone 312-971-0855
'The Obvious Source for ALL of Your Theatrical Supply Needs"

Theatre Design & Technology

Microphone Cables and Audio Equipment from Wireworks
Wireworks Corporation offers a wide and complete selection of
microphone cables and microphone multicable systems, offering a
single-source convenience for the professional audio equipment
user.
The product line includes: microphone cables in 12 colors for easy
identification and eye appeal. A flexible microphone multicable system in sizes, lengths and terminal configurations to fit virtually any
requirement.
Wireworks' full product and services capabilities are described in
the company's new brochure. For more information contact: Larry J.
Williams, Wireworks Corporation; P.O. Box 3600; Hillside, New Jersey 07205; 201/352-7800.

Libra Electronics Ltd.
Libra Electronics was formed less than a year ago and produces in
the United Kingdom what is thought to be the first modular, expandable, sound mixing and effects replay system designed especially for the theatre. The mixer utilizes a novel approach to input and
output selection which enables complex sound cue sequences to be
presented. Live microphone balancing and equalization, with facilities for two separate fold back groups, can also be supplied, simultaneously with spot effects replay if desired. The number of operational
controls in the program signal chain is kept to a minimum so that
inexperienced operators are not confused.
A number of systems have been installed in theatres in the United
Kingdom and these include the Bristol Old Vic and Royal Lyceum
Theatre, Edinburgh.
For further information contact: Libra Electronics, Ltd.; Unit 4 Browells Lane; Feltham, Middlesex TW13 7ER, Great Britain.

US ITT /Fall, 1978

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