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Projection Engineering, July, 1930
Page 5
WESTON MODEL 547 The Accepted Standard for Servicing Sound Equipment
"Since the advent of synchronized sound with the motion picture, new problems confront the Projectionist. Chief among these is the proper operation and maintenance of the electrical equipment. The efforts of the entire motion picture industry and allied manufacturers are judged more or less by the results seen and heard at the theatre, and it is from these results that support for further development is derived. One of the necessary means of securing proper operation and maintenance of the electrical equipment is through the use of electrical measuring instruments."
In this quotation from a recent editorial article on Servicing Sound Equipment is found recognition of the need for frequent electrical inspection of amplifiers and tubes, as well as the electrical circuits concerned with proper functioning of sound equipment. And in this new field, as in all others where electrical measurement is essential to efficient service, engineers and projectionists are turning to Weston instruments.
The illustration shows a compact, portable equipment, known as the Weston Model 547 Radio Set Tester, recommended for this purpose. It comprises three instruments mounted in a durable Bakelite case with removable cover, and connected through a system of switches and binding posts so arranged that each instrument and range is automatically connected in circuit for every required measurement. Comprehensive in scope and simple to operate. Write for full particulars.
Weston Electrical Instrument Corporation 608 Frelinghuysen Ave. Newark, N. J.
DEPENDABLE!
EVEREADY RAYTHEON TUBES FOR TALKING PICTURES, TELEVISION AND ALL INDUSTRIAL PURPOSES
THESE tubes have a firmly established position in the fields of talking pictures, television and industrial usage.
The Eveready Raytheon Foto-Cell is a long-life tube for talking pictures and television. It is also finding new industrial uses every day, such as paper testing, color matching, automatic counting, control of illumination and many others. It comes in several standard types, or can be made to specification.
The Eveready Raytheon Kino-Lamp, for television reception, has uniform glow over the entire plate, and its reproductive qualities are perfect without the need of mirrors or ground glass.
Write, if you are interested in talking pictures, television or Foto-Cell applications of any kind. Free — Eveready Raytheon Technical Bulletin No. 1, dealing with the Kino-Lamp, and No. 2, covering the Foto-Cell.
• • •
The Eveready Hour, radio's oldest commercial feature, is broadcast
every Tuesday evening at nine (New York time) from WEAF over
a nation-wide N. B. C. network of 30 stations.
NATIONAL CARBON COMPANY, INC.
General Offices: New York, N. Y. Branches: Chicago Kansas City New York San Francisco Unit of Union Carbide I ; and Carbon Corporation
EVEREADY RAYTHEON
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