Broadcasting (Jan - Mar 1949)

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GraybaR recommends 1931-A GENERAL RADIO BroolGOst 6 lelevision Meosuring Equipment Here's what you need to "watch" your broadcast signal as required oy the FCC — whether for AM, FM, or TV. Any radio engineer will O.K. these General Radio monitors, distributed by Graybar, for their maker's products have been radio's favorites for decades. Illustrated are the Type 1931-A Amplitude-Modulation Moni:or, which performs five functions for AM, including measurement Df percentage of modulation on either positive or negative peaks; -Jie Type 1181-A Frequency Deviation Monitor for AM, which indicates direction and magnitude of deviation from assigned frequency; the Type 1170-A Monitor for FM and the aural FM channel for TV, which indicates both frequency deviation and modulation percentage; the 1182-T Frequency Monitor for TV video, which indicates transmitter frequency deviation. Complete specifications are available via Graybar. Graybar has everything you need in broadcast equipment . . . PLUS everything for wiring, ventilating, signaling, and lighting for your entire station and grounds! Whatever your requirements to get the most suitable items most quickly, call your nearest jraybar Broadcast Equipment Representative. Graybar Electric Zompany, Inc. Executive Offices: Graybar Building, New York 1 7, Wew York. 4908 Distributor of WeStem ElectriC Broadcast Equipment GRAYBAR BRINGS YOU BROADCASTING'S BEST: Amplifiers (1) (See key to numbers at right) Antenna Equipment (1) Cabinets (5) Consoles (1 ) Loudspeakers and Accessories (1,3) Microphones, Stands, and Accessories (1, 3, 6, 7, 8) Monitors (1, 4) Recorders and Accessories (9) Speech Input Equipment (1) Test Equipment (4, 10) Towers (Vertical Radiators) (11) Tower Lighting Equipment (2, 12) Transmission Line and Accessories (13) Transmitters, AM and FM (1) Tubes (1, 2; 18) Turntables, Reproducers, and Accessories (1) Wiring Supplies and Devices (3, 8, 14, 15, 16, 17) MANUFACTURED BY: (1) Western Electric; (2) General Electric; (3) Whitney Blake; (4) General Radio; (5) Karp Metal; (6) Hugh Lyons; (7) Meletron; (8) Hubbell; (9) Presto; (10) Weston; (11) Blaw-Knox; (12) Crouse-Hinds; (13) Communication Products; (14) General Cable; (15) National Electric Products; (16) Triangle; (17) Bryant; (18) Machlett There are Graybar offices in over 100 principal cities. f/iese are t/ie Graybar Broadcast Equipmenf Represenfafives in key cities: XTLANTA :. W. Stone, Cypress 1751 iOSTON I. P. Lynch, Kenmore 6-4567 :hicago : H. Taylor, Canal 4104 CINCINNATI J. R. Thompson, Ma:n 0600 CLEVELAND W. S. Rockwell, Cherry 1360 DALLAS C. C. Ross, Central 6454 DETROIT P. L. Gundy, Temple 1-5500 JACKSONVILLE W. C. Winfree, Jacksonville 5-7180 KANSAS CITY, MO. R. B. Uhrig, Grand 0324 LOS ANGELES R. B. Thompson, Trinity 3321 MINNEAPOLIS W. G. Pree, Geneva 1621 NEW YORK F. C. Sweeney, Wafkins 4-3000 PHILADELPHIA G. I. Jones, Walnut 2-5405 PITTSBURGH R. F. Grossett, Court 4000 RICHMOND E. C. Toms, Richmond 2-2833 SAN FRANCISCO K. G. Morrison, Market 5131 SEATTLE D. I. Craig, Main 4635 ST. LOUIS J. P. Lenkerd, Newsteod 4700 JROADCASTING • Telecasting March 7, 1949 Page 5S