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Quam-Nichols Co., 33rd Place and Cottage Grove
Ave., Chicago. III. RCA Mfg. Co., Camden, N. J. Triangle Conduit & Cable Co., Elmhurst, N. Y.
ANTENNA MASTS
American Bridge Co., Pittsburgh, Pa.
Beasley Construction Co., John F., P. 0. Box 1547,
Muskogee. Okla. Blaw-Knox Co., P. 0. Box 1198, Pittsburgh, Pa. Hartenstine-Zane Co., Inc., 225 Broadway, N. Y. C. Lehigh Structural Steel Co., 17 Battery Place,
N. Y. C. Lingo Mfg. Co., Camden, N. J. New Jersey Erectors, 346 Broadway, Newark, N. J.
ANTENNA SURVEYS
Bendix Radio Corp., 60 E. 25th St., Chicago, III. Burnett Radio Laboratory, 4814 Idaho St., San
Diego, Calif. Premier Crystal Labs., 55 Park Row, New York,
N. Y. RCA Mfg. Co., Inc., Camden, N. J. Skifter, Hector R., St. Paul, Minn. Washington Institute of Technology, Washington,
D. C.
ATTENUATORS
Audio Products Co., Los Angeles, Calif.
Centralab Division, Globe Union Mfg. Co., 900 E. Keefe Ave., Milwaukee, Wis.
Cinema Engineering Co., 7606 Santa Monica Blvd., Hollywood, Calif.
Clarostat Mfg. Co., 285 North Sixth St., Brooklyn, N. Y.
Collins Radio Co., 2921 First Ave., Cedar Rapids, la.
Daven Co., The, 158 Summit St., Newark, N. J.
General Radio Co., 30 State St.. Cambridge, Mass.
International Resistance Co., 401 N. Broad St., Philadelphia, Pa.
Leeds & Northrup, 4970 Stenton Ave., Philadelphia, Pa.
P. R. Mallory & Co., 3029 E. Washington St., Indianapolis, Ind.
Ohmite Mfg. Co., 4835 W. Flourney St., Chicago, III.
Precision Resistor Co., 334 Badger Ave., Newark, N. J.
RCA Mfg. Co., Camden, N. J.
Remler Co., Ltd., 19th and Bryan Sts., San Francisco, Cal.
Shallcross Mfg Co., Collingdale, Pa.
Tech Laboratories, 7 Lincoln St., Jersey City, N. J.
United Transformer Corp., 150 Varick St., New York, N. Y.
Utah Radio Products Co., 820 Orleans St., Chicago,
AUDIO-FREQUENCY AMPLIFIERS
Allied Radio Corp., 833 W. Jackson Blvd., Chicago,
III. Gates Radio & Supply Co., Quincy, III. General Radio Co., 30 State St., Cambridge, Mass. General Transformer Corp., 1250 W. Van Buren St.,
Chicago, III. RCA Mfg. Co., Camden, N. J. Radio Engineering & Mfg. Co., 26 Journal Square,
Jersey City, N. J. Radio Television Industries Corp., 2 Linden St.,
Reading, Mass. Radolek Co., Division of Walter C. Braun, Inc.,
601 W. Randolph St., Chicago, III. Sundt Engineering Co., 4238 Lincoln Ave., Chicago,
III. United Sound Engineering Co., 2233 University
Ave., St. Paul, Minn. Webster Electric Co., Racine, Wis. Western Electric Co., 195 Broadway, N. Y. C.
BATTERIES
Bond Electric Corp., 146 Munson St., New Haven, Conn.
1940 BUYING GUIDE
Bright Star Battery Co., Clifton, N. J.
Burgess Battery Co., Freeport, III.
Edison, Thomas A., Inc., Edison Storage Battery
Division, West Orange, N. J. Electric Storage Battery Co., 19th and Allegheny
Aves, Philadelphia. Eveready Baottery Co. (See National Carbon Co.) Exide (See Electric Storage Battery Co.) General Dry Batteries, Inc., Cleveland, Ohio. Globe-Union, Inc., 900 E. Keefe Ave., Milwaukee,
Wise. National Carbon Co., 30 E. 42nd St., N. Y. C. Ray-O-Vac Co., 2317 Winnebago St., Madison, Wis. Ross, Charles, Inc., 244-250 W. 49th St., N. Y. C. Universal Battery Co., 3410 La Salle St., Chicago,
III. U-S-L Battery Corp., Niagara Falls, N. Y. Willard Storage Battery Co., 246 E. 131st St.,
Cleveland, Ohio.
BELLS— CHIMES, MUSICAL AND ELECTRICAL
Acme Electric Construction Co., 37 W. VanBuren
St., Chicago, III. Deagan, J. C, Inc., 1770 Berteau Ave., Chicago. Kohler-Liebich Co., 3553 Lincoln Ave., Chicago. Maas Organ Co., 3015 Casitas Ave., Los Angeles,
Calif. Rangertone, Inc., 201 Verona Ave., Newark, N. J. KCA Manufacturing Co., Inc., Camden, N. J. Ross, Charles, Inc., 244 W. 49th St., N. Y. C. Rybeck, Frances J. Co., New York, N. Y. Sound Projects Co., 3140 W. Walton St., Chicago,
III. Transformer Corp. of America, 69 Wooster St., New
York, N. Y.
BIAS CELLS
Mallory, P. R. & Co., Inc., 3029 E. Washington St., Indianapolis, Ind.
BINDING POSTS
(See HARDWARE, RADIO) Eby, Hugh H. Co., 2066 Hunting Park Ave., Philadelphia, Pa.
BROADCAST EQUIPMENT
American Communications Corp., 1560 Broadway,
New York, N. Y. American Sales Co., 44 W. 19th St., N. Y. C. Bassett Research Corp., South Bend, Ind. Collins Radio Co., 2920 First Ave., N. E., Cedar
Rapids, Iowa. Doolittle & Falknor, 7421 S. Loomis Blvd., Chicago,
III. Ferranti Electric, Inc., 30 Rockefeller Plaza, New
York, N. Y. Gates American Corp., Quincy, III. General Communication Products, Inc., Hollywood,
Calif. General Engineers, Upper Darby, Pa. Graybar Electric Co. (Distributors for Western
Elec), 420 Lexington Ave., N. Y. C. Hygrade Sylvania Corp., Clifton, N. J. International Broadcasting Equipment Co., 312 W.
51st St., Chicago, III. K!uge Radio Co., 1041 N. Bonnie Brae, Los Angeles, Cal. Lear Developments, Inc., 24 State St., New York,
N. Y. Miles Reproducer Co., 812 Broadway,. New York,
N. Y. Neely, Norman B., 5334 Hollywood Blvd., Hollywood, Calif. Northern Electric Co., Ltd., 1261 Shearer St..
Montreal, Canada. Peerless Radio Mfg. Co., Albany, N. Y. Piezoelectric Laboratories, 612 Rockland Ave., New
Dorp, S. I., N. Y. RCA Mfg. Co., Camden, N. J.
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