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by **bone** » Mon Sep 05, 2011 7:59 am

Does anyone know how to interpret the codes marked on loudspeakers?
I have a 15" L/S with the following codes printed in white:

On the chassis (Pressed steel)

10684 152351

and on the cone 35020

Thanks Tony.

by **Geek** » Mon Sep 05, 2011 3:47 pm

Code: Select all: Tubes and CRT's EIA code Amperex (USA) 111 Bendix 125 DuMont 158 Eimac (Eitel-McCullough, Inc) 162 Electronic Tube Corp 169 General Electric Co (USA) 188 Hytron (CBS-Hytron) 210 Machlett 231 RCA (Radio Corp of America) 274 Raytheon 280 Superior Tube Co 310 Sylvania (Hygrade Sylvania Corp) 312 Tung-Sol 322 United Electronics 323 Western Electric 336 Westinghouse 337 Zenith Radio Corp (CRT's) 343 Nortn American Philips Corp 423 Taylor (aka Cetron-Taylor) 713 Lewis & Kaufman 738 National Electronics (also Cetron) 749 Penta Laboratories 771 Vacuum Tube Products 781 Varian Associates 809 Litton Industries 879 Electrons, Inc 935 Capacitors EIA code Aerovox Corp 102 American Condensor 109 Centralab 134 Chicago Condensor 135 Aerovox Hi-Q Division 163 John E Fast 178 General Electric 188 Mallory 235 Micamold 240 Millen 242 Radio Condensor Company 273 Solar 296 Sprague 303 Gudeman 438 Good-All 446 Barker & Wiiliamson 461 Pyramid 472 United Condensor 516 Electrical Utilities Corp 569 Illinois Capacitor (Condensor) 616 American Radionic 648 Sangamo 658 Ajax 705 Standard Condensor 710 RMC (Radio Materials Corp) 732 Condensor Manufacturers 885 Transformers & Coils EIA code Stancor (Chicago-Standard) 138 Coil Engineering 141 Ensign Coil 172 Freed 183 General Radio 194 Jefferson Electric 218 Thordarsen-Meissner 238 Merit Coil & Transformer 239 Standard Coil 305 Essex (Transformer Division) 352 New York Transformer 366 Altec Lansing-Peerless 391 Foster Transformer 394 General Transformer 412 United Transformer Corp (UTC) 418 Radio-Television Products Corp 489 Empire Coil 452 Caledonia 503 Triwec Transformer 524 Midwest Coil & Transformer 549 Standard Winding Co 550 F & V Coil Winding 572 Woodward-Schumacher 606 Central Coil 637 Electrical Windings 682 Grand Transformers 757 Forest Electric 773 Ogden Coil & Transformer 776 Triad 830 Better Coil & Transformer 831 Acro Products (Acrosound) 878 Mohawk 883 American Transformer 892 Tresco 897 Coilcraft 906 Aerocoil 908 Acme Coil & Transformer 928 Magnetic Coil Mfring 933 Northlake 1005 Pacific 1052 Resistor & Potentiometers EIA code Allen-Bradley 106 Centralab 134 CTS (Chicago Telephone Supply) 137 Clarostat 140 Erie 173 IRC (International Resistance Co) 214 Mallory 235 Muter 244 Ohmite 251 Speer 300 Stackpole 304 Ward Leonard 532 Milwaukee Resistor 722 Dale 816 Atlas 932 Speakers (Drivers only, not cabinets) EIA Code CTS (Chicago Telephone Supply) 137 Jensen 220 Magnavox 232 DuKane (Operadio Corp) 252 Quam (Quam-Nichols) 270 Rola 285 Utah 328 Western Electric 336 Altec Lansing Corp 391 North American Philips (Norelco) 423 Oxford 465 Waldom Electronics 555 Electro-Voice 649 Russell Speaker Co 748 Quincy Speaker Mfr Corp 767 Klipsch 843 University 847 Oaktron 934 Other commonly seen manufacturers Company Product Code Admiral Corp TV's, Radios 101 Alpha Wire 733 Amphenol Sockets, plugs 554 ATR Vibrators 551 Anaconda Wire 547 Arvin Sears radios & TV's 248 Astatic Phono cartridges 345 Belden Wire 579 Bell Amps 708 Bogen Amps 589 BIC British imports 409 Cannon Connectors 440 Cinch Sockets, connectors 139 Collins Radio gear 439 Connector Corp Sockets, connectors 888 Consolidated Wire 607 Crosley Radios 152 Drake RF gear 851 DuKane (Operadio) Amps 252 Eby Sockets 160 Empire Phono cartridges 452 Essex Wire 175 Gates RF gear 187 General Cement Adhesives, Testor's paint 396 General Radio Test Equip 194 Hallicrafters Ham & SW gear 199 Hammarlund Ham & SW gear 201 Harmon-Kardon Hi-fi gear 794 Hickok Test Equip 508 International Rectifier Semiconductors 845 Jackson Tube Testers 216 E F Johnson Sockets, ham xcvrs 222 Kester Solder 224 Keystone Hardware 699 Lenz Wire 228 Littelfuse Fuses 230 McIntosh Hifi gear 793 Methode Connectors 720 James Millen Sockets 242 Muntz Cheap TV's 772 National Co Ham & SW gear, hifi 245 Newcomb Amps 437 Packard Bell TV's radios computers 254 Philco Radios & TV's 260 Philmore Hardware 262 Pickering (Stanton) Phono cartridges 631 Pilot Hifi tuners & amps 264 Pioneer Cheap recievers 706 Precision (Grommes) Hifi & PA amps 871 Radio Craftsmen Hifi gear 275 J P Seeburg Jukeboxes 289 Shure Brothers Phono carts, mics 590 Mark Simpson (MASCO) PA Amps 295 Simpson Electric Meters 614 Sonotone Phono cartridges 787 Tetrad Phono cartridges 842 Triplett Test equipment 321 Wells-Gardner Monkey Wards radios 334 Weston Test Equipment 338 Zenith Radios & TV's 343 More speaker codes Alphabetical: 1113 Acoustic Fiber Sounde 67 Eminence 706 Pioneer 101 Admiral 742 Esquire 1098 Pyle 391 Altec Lansing 1056 Fisher 270 Quam-Nichols 840 Ampex 188 General Electric 767 Quincy 795 Atlas 794 Harman Kardon 277 Radio Speaker 119 Automatic Manufacturing 416 Heath 280 Raytheon 24 Becker 575 Heppner 274 RCA 125 Bendix 169 Hitachi 285 ROLA 120 Hokutone 371 Best 220 Jensen 240 JW Davis 286 Ross 589 Bogen 232 Magnavox 748 Russell 719 Carbonneau 130 Matsushita 296 Solar 1059 Channel 789 McGregor 787 Sonatone 145 Cinaudagraph 1191 Micro Magnet 308 Stromberg 433 Cleveland 828 Midland 756 Universal 145 Consolidated 549 Midwest 847 University 150 Crescent 185 Motorola 328 Utah 137 C.T.S. 245 National 1279 WeberVST 1149 Curtis Mathes 918 Oaktron 336 Western Electric 466 Delco 252 Operadio 449 Wilder 252 Dukane 465 Oxford 343 Zenith 649 Electro-Voice 130 Panasonic 277 Emerson 260 Philco Numerical: 24 Becker 277 Emerson 748 Russell 67 Eminence 280 Raytheon 756 Universal 101 Admiral 285 ROLA 767 Quincy 119 Automatic Manufacturing 286 Ross 787 Sonatone 120 Hokutone 125 Bendix 296 Solar 789 McGregor 130 Matsushita 308 Stromberg 794 Harman Kardon 130 Panasonic 328 Utah 795 Atlas 137 C.T.S. 336 Western Electric 828 Midland 145 Cinaudagraph 343 Zenith 840 Ampex 145 Consolidated 371 Best 847 University 150 Crescent 391 Altec Lansing 918 Oaktron 169 Hitachi 416 Heath 1056 Fisher 185 Motorola 433 Cleveland 1059 Channel 188 General Electric 449 Wilder 1098 Pyle 220 Jensen 465 Oxford 1113 Acoustic Fiber Sounde 232 Magnavox 466 Delco 1149 Curtis Mathes 240 JW Davis 549 Midwest 1191 Micro Magnet 245 National 575 Heppner 1279 WeberVST 252 Operadio 589 Bogen 252 Dukane 649 Electro-Voice 260 Philco 706 Pioneer 270 Quam-Nichols 719 Carbonneau 274 RCA 742 Esquire 277 Radio Speaker

by **bone** » Thu Sep 08, 2011 2:50 am

Thanks for that Gregg. All I've got to do now is work out which one(s) refer to my speaker

by **nyazzip** » Fri Sep 09, 2011 11:52 pm

according to greg's list, prefix "152" is "crosley radios"....

by **bone** » Sun Sep 11, 2011 12:25 pm

Yeah but I don't think they made the 15" guitar speaker I found in a British amp :)

by **battradio** » Sun Sep 11, 2011 1:08 pm

bone wrote:Yeah but I don't think they made the 15" guitar speaker I found in a British amp :)

I think that tid bit would have ben helpfull to begin with . None of those codes are going to help .

by **Geek** » Sun Sep 11, 2011 2:02 pm

Exactly.

15" speaker in a British amp.... pretty much guarantee a Celestion.

Cheers!

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