Journal of the Society of Motion Picture and Television Engineers (1950-1954)

a signal of the correct frequency and of suitable amplitude, variations from constant speed of the recording and/or reproducing machine can be measured. The instrument operates at a nominal carrier frequency of 3000 cycles/sec, but will tolerate up to 5% variation in mean carrier frequency, thus enabling measurements to be made on machines that are running off speed, or using film of disks whose recorded 3000-cycle tone is inaccurate. The meter consists of a narrow-band amplifier, a limiter, a discriminator and detector, and a metering system, the whole unit being self-contained with its own power supplies. The input amplifier is tuned to 3000 cycles/sec and has a bandwidth of 1000 cycles /sec. It is provided with an input control for adjusting signal level. An amplitude limiter, which eliminates effects caused by signal level variations, is followed by a power amplifier which drives a discriminator operating at a mean frequency of 3 kc. The discriminator may be tuned from 2850 to 3150 cycles/sec to accommodate variations in mean carrier frequency. The error in the input frequency expressed as a percentage of speed is indicated on a scale. The input signal level at the discriminator, which is set up on a meter by means of a control in the limiter circuit, is maintained constant by the limiter. The Gaumont-Kalee Flutter Meter is distributed in the U.S. by S.O.S. Cinema Supply Corp., 602 West 52d St., New York 19. Employment Service These notices are published for the service of the membership and the field. They are inserted for three months, at no charge to the member. The Society's address cannot be used for replies. Positions Wanted Motion-Picture Television Technician: 10 yr intensive skill and know-how related to 16-35mm cinematography, animation, recording (optical, tape, disk), editing, laboratory processing practice (black-and-white, color); also kinescope recording techniques; self-reliant; inventive; relocate if required; write: CMC, Technical Associates, 60 East 42d St., New York 17, N.Y. Motion-Picture Cameraman: Retiring from Naval Service. 15 yr experience in camera operation, printing, processing, adm. and supervision of production crews. Desires position in TV, educational or industrial field, inaugurating a motion-picture program. Available after May 1954. Prefer West Coast. Write: W. W. Collier, 422 W. Jackson Ave., Warrington, Fla. Positions Available Wanted: Sound Engineer for New York film production studio, operation and maintenance on optical and magnetic sound equipment; electronics background essential. Send resume to R. Sherman, 858 West End Ave., New York, N.Y. Technical Photographer, age 27 to 38, for senior position with large California industrial research organization. Should be conversant with contemporary techniques for recording data ; acquainted with microscopy, graphic arts and color processes. Job involves application of photographic techniques as experimental tool in research projects. Administrative experience helpful. Excellent career opportunity for an ingenious and inventive person. Retirement pension and other benefit plans. Application held in strict confidence. Write giving personal data, education and experience to Henry Helbig and Associates, Placement Consultants, Examiner Bldg., 3d and Market Sts., San Francisco 3, Calif. Sound Engineer: Complete responsibility for sound control, including printing, processing, maintenance of standards, etc. Tri Art Color Corp., 245 West 55th St., New York 19, N.Y. Motion-Picture Supervisor, GS-8: Duties as Chief of Motion Picture Section to include all phases of aeromedical research cinematography. Experience in planning, directing, lighting, color control, recording in single or double-system sound. Laboratory work requires experience with sensitometric control equipment, contact printers, automatic processors, Moviola, sound synchronization equipment, titlers, etc. For detailed information write: Photography Officer, USAF School of Aviation Medicine, Randolph Field, Texas. Motion-Picture Sound Transmission Installer and Repairer, for the Signal Corps Pictorial Center, Long Island City, N. Y. — one at $2.59/hr; one at $2.29/hr (40-hr week). Applicants for $2.29/hr position must have had 4^ yr progressively responsible experience in the construction, installation and maintenance of electronic equipment, of which at least 1 ^ yr must have been in the specialized field of motion-picture film, disk or magnetic sound recording or reproducing equipment. Applicants for $2.59/hr position must have had at least 5 yr responsible experience in the design, development and installation of electronic equipment, of which at least 2 yr must have been in the specialized field of motionpicture film, disk or magnetic sound recording or reproducing equipment. Must be familiar with filter design and transmission testing, involving the use of a wide variety of testing and measuring 187