International projectionist (Jan-Dec 1946)

New Novel Service Kits Now Supplied to All RCA Field Servicemen A major advance in the theatre sound service field has been made with the introduction and distribution by RCA Service Co. of a complete new test kit to all its field personnel. Substantial quantities of the new units have been shipped during the past several weeks, and all RCA field servicemen will be equipped by December 15. Included in this kit are a specially designed battery-operated voltohmyst, a triatic signal tracer and capacitor checker, a power level meter, a d.c. ammeter and shunt, socket selectors for checking tubes, and all necessary leads for instruments. All units are contained in a reir forced fibre case which is 19" long, 7y2" deep, and 14" high. The complete kit weighs only 35 pounds. The signal tracer deserves special consideration, since it was developed and designed to fill a long-felt need for a universal tester. It will measure capacitors between 10 mmfds. and 10 mfds.. and will indicate whether the capacitor under test has low or high shunt r°s:stan"e. Headphones are not needed to secure a bal ance of the bridge circuit: this is accomplished by an electron-ray indicator tube. Because of the high-impedance input of the signal tracer, it can be connected directly to a signal-carrying circuit with held engineer is furnished with the latest Academy test film, which incorporates picture and sound excerpts from productions of the major studios. Other test films supplied include a buzz track and a 7,000-cycle recording for adjusting the optical units; a 300-cycle film for balancing photocell outputs and checking pushpull soundheads; a frequency recording from 30 cycles to 10,000 cycles for check Compact postwar RCA theatre service kit. Left to right, in foreground, are battery-operated Voltohmyst, power level indicator, ammeter shunt, tube socket selectors, D.C. ammeter, and triatic signal tracer and capacitor checker. Reinforced fibre carrying case in background. out appreciably disturbing the signal. This is a distinct advantage, since it permits checking of the electronic circuits in the theatre sound system under actual operating conditions. In addition to this modern test kit, each I ^hrolidciu Ljreeting.5 to ALL I. A. MEMBERS Loca! No. 414 Wichita, Kansas Sincere Ljood l/UiineA Sincere to all OFFICERS and MEMBERS of the I. A. T. S. E. from Local No. 303, Hamilton Ontario, Canada I I Sneddon A K^reetlna ALBERT F. RYDE Business Agent I. A. T. S. E. LOCAL NO. 233 Buffalo, N. Y. ing overall frequency response characteristics of the sound system, and overload frequency recordings for checking the power output of the amplifier. 2 Billion Industry Take! Total admissions tax collection of $48,597,428 for October, on September business, topped by more than $6,000,000 the previous all-time high of October, 1945. The record "take" for October raised the fiscal year total of $166,942,935.51, compared with a corresponding figure last year of only $138,600,899.84 — 3 difference of $28,342,035.67. If collections through the rest of the current fiscal year match this rate the total admissions tax "take" will just top half a billion dollars — which means an industry gate of better than two billion dollars! Precision REFLECTORS Sold by most independent Ihealrc supply dealers. THE STRONG ELECTRIC CORP. The World's Largest Manufacturer of Projection Arc Lamps 87 City Park Ave. Toledo 2, Ohio 26 INTERNATIONAL PROJECTIONIST • December 1946