Broadcasting Telecasting (Jan-Mar 1960)

NAB PREVIEW EXHIBITS CONTINUED GPL DIVISION OF GENERAL PRECISION INC. Space 26 GPL will exhibit a new high-resolution vidicon film chain and remote vidicon camera chains. In addition, video recorders, sync generators, video switchers, 35 mm telecast projectors, video and pulse distribution amplifiers and tv projection systems will be shown. Personnel: N.M. Marshall, E.J. Manzo, A.F. Brundage, L.L. Pourciau. HARWALD CO. Space 12 Harwald again will display film inspection and editing equipment, with related gear including a 16 mm projector and such items as splicers and racks. Personnel: Robert Grunwald, Richard Wallace, Howard Bowen, Paul Browder, Sam Caldwell, Maurice Dalton, Ray Short. HUGHEY & PHILLIPS Space 30 Hughey & Phillips will display tower obstruction lighting equipment featuring new tower lighting isolation transformers. Other equipment to be displayed includes: tower light control and alarm units for unattended microwave relay stations; photoelectric control and beacon flasher units; beacons: obstruction lights and other control units. Personnel: J.H. Ganzenhuber, H.J. Geist, R.L. Lang, F.J. Little Jr. INDUSTRIAL TRANSMITTERS & ANTENNAS INC. Space 11 ITA will exhibit a completely redesigned line of fm transmitters of 10 w through 15 kw, plus remote control and multiplex subgenerators and STL receivers. The 1 kw, FM-1000B uses a 4CX1000A in the final operated grounded grid. The 5 kw transmitter, FM-5000B, has been rated for 7500 w operation and the 10 kw transmitter, FM-10,000B, has been rated for 15,000 w operation. All transmitters have been designed for remote control and multiplex operations. Personnel: Bernard Wise, Eliot Barker, Clyde Heck, Stanley Friedman, Robert Jordan. KAHN RESEARCH LABS INC. Space 5 Kahn will exhibit a stereo exciter-driver system to permit compatible stereo broadcasts over a single am transmitter on two am receivers. Stereo is achieved by placing two standard am receivers about six feet apart and tuning each set to the respective upper and Lower sidebands. Sideband rather than carrier tuning makes am fidelity comparable with fm, Kahn asserts. Also to be shown; a compatible single sideband to double effective transmitter power, improve mdio fidelity and reduce adjacent and co-channel interference; a symmetra-peak mode! used to increase coverage range of am, fm and tv voice transmissions and to improve overall limiter and AGC amplifier performance. Personnel: Leonard R. Kahn, Kenneth B. Boothe. KLIEGL BROS. Space 17 A complete line of tv lighting fixtures, accessories, wiring devices and lighting selection and control equipment for monochrone and color telecasting will be demonstrated. Featured will be a new SCR semiconductor dimmer using silicon controlled rectifier. Personnel: Herbert R. More, William F. Morris, David Safford. MACKENZIE ELECTRONICS INC. Space 9B MacKenzie Electronics will present its complete broadcast line of automatic injection announcing and sound effects equipment including the 5CPB program repeater, an instant cueing device for playing of pre-recorded spot announcements, station breaks, jingles, etc., with instantaneous stop-start operation. Also to be unveiled for the first time will be a new recording unit. Personnel: Louis G. MacKenzie, Norman J. Ostby, Wayne Graham, Jim Tharpe. METROPOLITAN ELECTRIC MFG. CO. Space 15 Metropolitan will display its light control systems including the lumitron magnetic amplifier, the controlled junction rectifier (C-J-R) dimmers and complete studio lighting facilities. Personnel: Jim Connolley, Paul Shapiro, Bill Shelley, Jim Shelley, Charles Shevlin, MINNEAPOLIS-HONEYWELL REGULATOR CO. Space 10 Minneapolis-Honeywell will display its latest model of the transmitting station parameter automatic logger, consisting of two parts. One placed at the transmitter will measure and telemeter the parameters. The other at the studio will automatically record on a 12-inch wide strip and chart all of the various parameters, sequentially and continuously. The recorder will log 15 different parameters, dwelling 30 seconds on each. Eight selective alarms are incorporated with the recorder which will light up when any parameter selected goes out of bounds either high and/or low. Personnel: George McKnight, Gustave Ehrenberg. MINNESOTA MINING & MFG. CO. Space 40N The complete line of Scotch brand magnetic products and accessories for broadcasting will be displayed. Among them are: audible range tapes, video tapes, the new VRB6-V4 plastic spot commercial reel with shipping carton, available empty, or with 400 or 800 feet lengths of video tape, and new intermediate lengths of tape. All video tapes will have preburnished feature which reduces signal drop out. Personnel: C. L. Alden, W. H. Madden, D. T. Windahl, Bert Holmberg, D. J. Slattery, J. S. Savidge, R. D. Stoll. MIRATEL INC. Space 47 N Products are video monitors and citizens band radio transmitters-receivers, Conelrad receivers, power supplies, audio controlled relays and program failure alarm. Personnel: William S. Sadler, H. E. Kurzweg, N. C. Ritter. MUZAK CORP. (Programatic Broadcasting Service) Space 1 Programatic will demonstrate its new fully automatic radio programming service under actual working conditions, showing how commercials and complete pre-recorded programs, with network cutins, may be integrated into virtually any broadcast schedule. A hospitality suite will be maintained in Room 605. Personnel: John Esau, Robert H. Prater, Robert E. Fender, Gus Weber. Joseph W. Roberts and David Bain. RCA Space 21 A line of new tv broadcast "designed to facilitate local station or network operations and bring a living picture into the home" will be shown by RCA. Topping the exhibit will be a new monochrome camera with "a big-image 4'/2inch eye," an automation system display for all-day tv programming and an advanced tv tape recorder "with the ability to edit program material electronically." The three devices are "valuable tools to enable the broadcaster to produce a picture of higher quality than ever before possible," said C. H. Colledge, general manager, RCA Broadcast & Television Equipment Div. "The RCA array of equipment is the largest ever displayed at an NAB convention." Major developments in am and fm radio include a new 1 kw fm transmitter and a 10 kw "big brother." The 4Vi-inch image orthicon pickup tube used in the new TK-12 camera is designed to play a big role in magnetic tape recording, having increased resolution and better gray scale rendition than the standard 3-inch studio camera tube, according to Mr. Colledge. The TK-12 camera is entirely new, he said, leading to third or fourth generation tape recording copies comparable in clarity to the original. Live pictures will be greatly improved, he said, adding that TK-12 is "highly stable with only two operating controls and built-in ability to hold the road even during prolonged operation." The automation system utilizes a perforated paper tape prepared when the program schedule for the day is formulated, a typewriter-like machine punching tape and turning out a printed program schedule. The tape is inserted in a control-room reader which feeds signals into the system's memory. Only manual effort required after tape preparation is the loading of film or slide projectors and pushing of the control button to start the cycle. Remote manipulation of studio tv cameras from the control room is handled through a joy-stick on the video console. CONTINUED on Page 99 94 (NAB CONVENTI 1VIEW) BROADCASTING, March 28, 1960