Radio and Television Today (Jan-Nov 1941)

Record Details:

Title:
Radio and Television Today
Date:
Jan-Nov 1941
Publisher:
New York : Caldwell-Clements, Inc.
Volume:
Radio and television today (Jan-Nov 1941)
Leaf #:
000744
Language:
English
Collection:
Broadcasting & Recorded Sound
Format:
Periodicals
Contributor:
Library of Congress, MBRS, Recorded Sound Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Date Added:
September 28, 2023
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NEW EQUIPMENT PRODUCTS FOR SOUND AND SERVICE 4 University speaker projector -k New line of radial cone units designed for uniform projection. Model RBP uses "Infinite Baffle" principle. Flat top design suitable for ceiling or single suspension mounting. Waterproof for outdoor use. All steel construction with "floating rubber" speaker mounting and "non-resonant" rubber rims. Available for 12 and 8 in. cone speakers University Labs., 195 Chrystie St., New York, N. Y.— Radio Today. Hallicrafters model RSC-2 * RSC-2 includes 3 units — an FM/AM tuner, a high fidelity 25-w. amplifier and a monitor speaker inclosed in a single rack. Amplifier provides for microphone and phono inputs. Frequency response of the amplifier alone is plus or minus 1V2 db. from 30 to 20,000. Hallicrafters, Inc., 2611 S. Indiana St., Chicago, 111. — Radio Today. Radio City tester •k Designed for testing and servicing coin-operated amusement devices and such as phonographs, pin ball games, etc. Model 415 is only 6 in. x 3 in. x 2% in. AC & DC voltages; tests and measures resistance of relays, contacts, etc. ; tests condensers. Jacks permit tests by headphones. Shop and portable types. Radio City Products Co., Inc., 88 Park PL, New York, N. Y.— Radio Today. Phi/co portable amplifier • Model 905-A, 15 watt sound amplifier is compact, and features a lapel microphone. Stand mike available. 110 v., 60 cycle. Philco Corp., Tioga & C Sts., Philadelphia, Pa — Radio Today. Audiograph amplifier * Compact, 15-w. amplifier with or without phonotop is B-15C. Musical background may be mixed with speech. 4 and 8 ohm outputs allow single or dual speaker operation. Frequency response is flat from 50 to 8000 cps. John Meek Industries, 1313 W. Randolph St., Chicago, 111 — Radio Today. Precis/on series 832-/1 ■*■ A 31-range, compact, AC-DC tester incorporates ranges to 1200 v., DC, 2400 AC, 5 megohms, 600 milliamperes and +62 db. A 3 in. square bakelite case houses the 800 microampere meter. 2% DC and 3% AC accuracy. Wire wound shunts and matched metallized multipliers of 1% accuracy. Precision Apparatus Co., 647 Kent Ave., Brooklyn, N. Y. — Radio Today. Knight communication system k Knight selective intercommunication system has 2% w. output enabling ten sub-stations to carry five simultaneous two-way conversations with absolute privacy. Up to 2,000 feet of cables may be used between each station. Walnut finished cabinets. 110-115 v. AC-DC operation. Allied Radio Corp., 833 W.. Jackson Blvd., Chi., 111.— Radio Today. UTC Varitran -k The Varitran is a variable voltage transformer capable of adjustment in infinite steps with high efficiency. Provides an output voltage of 0 to 130 for 115 v. input. United Transformer Corp., 150 Varick St., New York, N. Y. — Radio Today. IRC resistor assortment k A convenient assortment of V2-, 1 and 10-watt resistors in the most frequently needed resistance values is supplied in metal cabinets. Regular price for the resistors is charged, the cabinets are included at no extra cost. International Resistance Co., 401 N. Broad St., Philadelphia, Pa. — Radio Today. Clarostat rheostat k Armored type 25-watt rheostat mounted in a perforated metal housing. Uses an insulated metal core to support winding. Available in resistance values of 1 to 5000 ohms; other values on special order. Clarostat Mfg. Co., Inc., 285-7 N. 6th St., Brooklyn, N. Y— Radio Today. American mike k New dynamic microphone in which 2 units are used, has over-all range from 25 to 10,000 cps. Model D-220 has a selector switch permitting the' use of either the high section or low section as desired. American Microphone Co., 1915 S. Western Ave., Los Angeles, Calif. — Radiq Today. 36 RADIO TODAY