Theatre Design & Technology - Dec 1973 - 31

life of 200 hours compared with 100 for incandescent,
and 250 and 750 hours for the Ouartzline 2,000-watt
types).

- light output stays high. (Like Ouartzline lamps, the
new lamps maintain more than 90 percent of initial light
output throughout their life. Typical non-halogen incandescents lose some 20 to 50 percent of their initial output
during life).
- minimum noise. (Like other GE high-wattage spotlight lamps, Econo-Kleen lamps have low-noise construction which assures minimum noise generation, even on
solid state dimmers).
Schmies pointed out that Quartzline lamps still offer
lowest overall operating cost, longest life, and the smallest
bulb size, "although non-halogen incandescents have the
edge on lowest initial cost."
He said that General Electric designed the new lamps to
provide buyers with a "balanced choice between the
recognized advantages of Ouartzline tungsten-halogen
lamps and the economy of non-halogen incandescents."
With the two new lamps, there are now nine mogul bipost based, 3,200K GE lamps designed for stage/studio
*
spotl ight appl ications.
*

Registered trademark of General Electric Company
tungsten-halogen lamps.

GE LAMP DIRECTORY AND GUIDE
ECONO-KLEEN LAMPS FROM GE
A new line of stage/studio lamps that combine economy with long life, stable color and consistent high light
output have been developed by the General Electric
Comnany.
Called "Econo-Kleen", the new 2,000 and 5,000-watt
tungsten-halogen lamps offer users a midway choice between lower cost incandescent lamps and top-performing
halogen-cycle quartz lamps such as GE's Ouartzline.*
The 3,200K, mogul bipost base lamps will be used
primarily in lens-type spotlights for motion picture and
TV production and for theatre stage and photographic
lighting.

The new "Stage/Studio Lamp and Equipment Directory" simplifies the identification, application and ordering
of Ouartzl ine * and other incandescent lamps most frequently used in lighting theatre stages, television and motion picture production, and professional photography
studios.
In addition to lamps, the new booklet lists more than
1,200 lighting fixtures in a "fixture relamping guide", and
includes ANSI cross-references matching ANSI code with
equivalent GE lamp or replacement.

Heward M. Schmies, OEM Market Planning Manager
for GE's Lamp Marketing Department, described EconoKleen lamps as "the first commercial use in this country of clear, heat resistant glass rather than quartz for a
studio lamp with a halogen regenerative cycle."

Single copies are available without charge through GE
Lamp Sales Department offices in major cities, or the
Inqu iry Bureau, Dept. SS-123, General Electric, Nela Park,
*
Cleveland, Ohio 44122.

The halogen cycle occurs, he explained, throughout the
interior of the 6 and 8-inch spherical bulbs rather than
confined in a quartz tube as in Ouartzline lamps.

NEW INTERCOMMUNICATION SYSTEM FOR
SOUND, LIGHTING AND CAMERA CREWS

Schmies cited these major characteristics of the EconoKleen lamps: - nearly twice the life of comparable non-

halogen incandescents, although not as long as Quartzline.
(The 2,000-watt Econo-Kleen lamp has an average rated

Three General Electric lighting reference guides widely
used by the television, motion picture, and theatre lighting industries have been combined into a single, easier-touse publication.

THEATRE DESIGN AND TECHNOLOGY

Lum iere Productions, I nco announces the formation of
its new division, Clear-Com. Clear-Com will manufacture
its newly developed System CCX 100, a closed-circuit
intercommunication system designed specifically for the

DECEMBER, 1973

Table of Contents for the Digital Edition of Theatre Design & Technology - Dec 1973