| S. No. | Brand Name | Country | Remarks |
| 1 | ACE | To be Updated | To be Updated |
| 2 | PLUG | To be Updated | To be Updated |
| 3 | ACTRON | To be Updated | To be Updated |
| 4 | AD | To be Updated | To be Updated |
| 5 | ADMIRAL | To be Updated | To be Updated |
| 6 | ADZAM | To be Updated | To be Updated |
| 7 | AEI | To be Updated | To be Updated |
| 8 | AERIOTRON | To be Updated | To be Updated |
| 9 | AERO | To be Updated | To be Updated |
| 10 | AERODYNE | To be Updated | To be Updated |
| 11 | AIRHAWK | To be Updated | To be Updated |
| 12 | AIR KING | To be Updated | To be Updated |
| 13 | AIRLINE | To be Updated | To be Updated |
| 14 | AIR SCOUT | To be Updated | To be Updated |
| 15 | AIRTRON | To be Updated | To be Updated |
| 16 | AJAX | To be Updated | To be Updated |
| 17 | AKRAD | To be Updated | To be Updated |
| 18 | ALADDIN | To be Updated | To be Updated |
| 19 | ALDEN | To be Updated | To be Updated |
| 20 | ALGRA | To be Updated | To be Updated |
| 21 | ALLIED | To be Updated | To be Updated |
| 22 | ALLTRON | To be Updated | To be Updated |
| 23 | ART ) | To be Updated | To be Updated |
| 24 | AMERTRON | To be Updated | To be Updated |
| 25 | AMPEG | To be Updated | To be Updated |
| 26 | AMPEREX | To be Updated | To be Updated |
| 27 | AMPLITRON | To be Updated | To be Updated |
| 28 | ANODYNE | To be Updated | To be Updated |
| 29 | APOLLO | To be Updated | To be Updated |
| 30 | ARATRON | To be Updated | To be Updated |
| 31 | ARC | To be Updated | To be Updated |
| 32 | ARCHATRON | To be Updated | To be Updated |
| 33 | ARCHWAY | To be Updated | To be Updated |
| 34 | ARCO-TRON | To be Updated | To be Updated |
| 35 | ARCTRON | To be Updated | To be Updated |
| 36 | ARCTURUS | To be Updated | To be Updated |
| 37 | ARDON | To be Updated | To be Updated |
| 38 | ARISTOCRAT | To be Updated | To be Updated |
| 39 | ARNCO | To be Updated | To be Updated |
| 40 | ARS | To be Updated | To be Updated |
| 41 | ART | To be Updated | To be Updated |
| 42 | ARVIN | To be Updated | To be Updated |
| 43 | ATLAS | To be Updated | To be Updated |
| 44 | ATRON | To be Updated | To be Updated |
| 45 | KENT | To be Updated | To be Updated |
| 46 | AUDIO CLASSIC | To be Updated | To be Updated |
| 47 | AUDIOMAT | To be Updated | To be Updated |
| 48 | AUDION | To be Updated | To be Updated |
| 49 | AUDIOTRON | To be Updated | To be Updated |
| 50 | AUTOMATIC | To be Updated | To be Updated |
| 51 | AWV | To be Updated | To be Updated |
| 52 | B&K | To be Updated | To be Updated |
| 53 | B&W | To be Updated | To be Updated |
| 54 | BAKER – SMITH COMPANY | To be Updated | To be Updated |
| 55 | BAKER AND WILLIAMSOM | To be Updated | To be Updated |
| 56 | BECKMAN | To be Updated | To be Updated |
| 57 | B.E.L. | To be Updated | To be Updated |
| 58 | BELL & HOWELL | To be Updated | To be Updated |
| 59 | BELLARI | To be Updated | To be Updated |
| 60 | BELL-TONE | To be Updated | To be Updated |
| 61 | BELSON | To be Updated | To be Updated |
| 62 | BENNIT LAB | To be Updated | To be Updated |
| 63 | BESTEST | To be Updated | To be Updated |
| 64 | BESTONE | To be Updated | To be Updated |
| 65 | BOOGIE | To be Updated | To be Updated |
| 66 | BOGEN | To be Updated | To be Updated |
| 67 | BOSTRON | To be Updated | To be Updated |
| 68 | BOWMAN LABORATORIES | To be Updated | To be Updated |
| 69 | BRIGHT STAR | To be Updated | To be Updated |
| 70 | BRIGHTSON | To be Updated | To be Updated |
| 71 | BRILLIANTONE | To be Updated | To be Updated |
| 72 | BRIMAR | To be Updated | To be Updated |
| 73 | BRIVARON | To be Updated | To be Updated |
| 74 | BRUSH INSTRUMENTS | To be Updated | To be Updated |
| 75 | B-T Labs | To be Updated | To be Updated |
| 76 | TUBES | To be Updated | To be Updated |
| 77 | BUGERA | To be Updated | To be Updated |
| 78 | BUGLE BOY | To be Updated | To be Updated |
| 79 | BY HECK | To be Updated | To be Updated |
| 80 | C-C | To be Updated | To be Updated |
| 81 | C & M | To be Updated | To be Updated |
| 82 | CALVERT ELECTRONICS | To be Updated | To be Updated |
| 83 | CALVERTRON | To be Updated | To be Updated |
| 84 | CAPEHART | To be Updated | To be Updated |
| 85 | CAYIN | To be Updated | To be Updated |
| 86 | CBS | To be Updated | To be Updated |
| 87 | CECO | To be Updated | To be Updated |
| 88 | CEI | To be Updated | To be Updated |
| 89 | CHAMPION | To be Updated | To be Updated |
| 90 | CHELMER | To be Updated | To be Updated |
| 91 | CHIEF | To be Updated | To be Updated |
| 92 | CIFTE | To be Updated | To be Updated |
| 93 | CLARITONE | To be Updated | To be Updated |
| 94 | CLAIRTONE | To be Updated | To be Updated |
| 95 | CLAIRITRON | To be Updated | To be Updated |
| 96 | CLEARATONE | To be Updated | To be Updated |
| 97 | CLEARTRON | To be Updated | To be Updated |
| 98 | COAST | To be Updated | To be Updated |
| 99 | COLOMOR | To be Updated | To be Updated |
| 100 | COLONIAL | To be Updated | To be Updated |
| 101 | COMET | To be Updated | To be Updated |
| 102 | COMMANDER | To be Updated | To be Updated |
| 103 | CONCERTONE | To be Updated | To be Updated |
| 104 | CONQUERER | To be Updated | To be Updated |
| 105 | CONTINENTAL | To be Updated | To be Updated |
| 106 | CORNELIA | To be Updated | To be Updated |
| 107 | CORONADO | To be Updated | To be Updated |
| 108 | CORVAIR | To be Updated | To be Updated |
| 109 | COSSOR | To be Updated | To be Updated |
| 110 | COURIER | To be Updated | To be Updated |
| 111 | CRESCENT | To be Updated | To be Updated |
| 112 | CROSLEY | To be Updated | To be Updated |
| 113 | CROYDON | To be Updated | To be Updated |
| 114 | CRUSADER | To be Updated | To be Updated |
| 115 | CUNNINGHAM | To be Updated | To be Updated |
| 116 | CUMMINS | To be Updated | To be Updated |
| 117 | CURTIS MATHES | To be Updated | To be Updated |
| 118 | DALTRONICS | To be Updated | To be Updated |
| 119 | DARIO | To be Updated | To be Updated |
| 120 | DAYSTROM | To be Updated | To be Updated |
| 121 | DEFENDER | To be Updated | To be Updated |
| 122 | DeFOREST | To be Updated | To be Updated |
| 123 | DELATONE | To be Updated | To be Updated |
| 124 | DELCO | To be Updated | To be Updated |
| 125 | DETECTRON | To be Updated | To be Updated |
| 126 | DETRON | To be Updated | To be Updated |
| 127 | DEXTRON | To be Updated | To be Updated |
| 128 | DIANA | To be Updated | To be Updated |
| 129 | DIATRON | To be Updated | To be Updated |
| 130 | DICTATOR | To be Updated | To be Updated |
| 131 | DIS-X-TRON | To be Updated | To be Updated |
| 132 | DISTATRON | To be Updated | To be Updated |
| 133 | DIXIE | To be Updated | To be Updated |
| 134 | DOMINO | To be Updated | To be Updated |
| 135 | DRAKE | To be Updated | To be Updated |
| 136 | DUMONT | To be Updated | To be Updated |
| 137 | DUOTRON | To be Updated | To be Updated |
| 138 | DUOVAC | To be Updated | To be Updated |
| 139 | DURATRON | To be Updated | To be Updated |
| 140 | DUVAL | To be Updated | To be Updated |
| 141 | DYNACO | To be Updated | To be Updated |
| 142 | DYNASCAN | To be Updated | To be Updated |
| 143 | DYNETRON | To be Updated | To be Updated |
| 144 | EAGLE | To be Updated | To be Updated |
| 145 | ECA | To be Updated | To be Updated |
| 146 | ECG | To be Updated | To be Updated |
| 147 | ECHOTRON | To be Updated | To be Updated |
| 148 | ECLIPSE ** ECONOTRON | To be Updated | To be Updated |
| 149 | EDICRON | To be Updated | To be Updated |
| 150 | EDISWAN | To be Updated | To be Updated |
| 151 | EGNATER | To be Updated | To be Updated |
| 152 | EGRO | To be Updated | To be Updated |
| 153 | EI | To be Updated | To be Updated |
| 154 | EIMAC | To be Updated | To be Updated |
| 155 | ELECTRODYNE | To be Updated | To be Updated |
| 156 | ELECTRO-HARMONIX | To be Updated | To be Updated |
| 157 | ELECTROHOME | To be Updated | To be Updated |
| 158 | ELECTRON | To be Updated | To be Updated |
| 159 | ELECTRONS | To be Updated | To be Updated |
| 160 | ELECTRONIC | To be Updated | To be Updated |
| 161 | ELECTRONIC ENTERPRISES | To be Updated | To be Updated |
| 162 | ELEKTRON | To be Updated | To be Updated |
| 163 | ELEVAM | To be Updated | To be Updated |
| 164 | ELITETRON | To be Updated | To be Updated |
| 165 | ELPICO | To be Updated | To be Updated |
| 166 | EMERSON | To be Updated | To be Updated |
| 167 | EMPEROR | To be Updated | To be Updated |
| 168 | EMPIRE | To be Updated | To be Updated |
| 169 | EMPIRE-TRON | To be Updated | To be Updated |
| 170 | ENDURANCE | To be Updated | To be Updated |
| 171 | ENGL | To be Updated | To be Updated |
| 172 | EPIC | To be Updated | To be Updated |
| 173 | ERICSSON | To be Updated | To be Updated |
| 174 | ESETRON | To be Updated | To be Updated |
| 175 | ETRON | To be Updated | To be Updated |
| 176 | EUREKATRON | To be Updated | To be Updated |
| 177 | EVEREADY | To be Updated | To be Updated |
| 178 | EXCELTRON | To be Updated | To be Updated |
| 179 | FAA | To be Updated | To be Updated |
| 180 | FADA | To be Updated | To be Updated |
| 181 | Fanfare | To be Updated | To be Updated |
| 182 | FANON-MASCO | To be Updated | To be Updated |
| 183 | FASTRON | To be Updated | To be Updated |
| 184 | FERRANTI | To be Updated | To be Updated |
| 185 | FMC | To be Updated | To be Updated |
| 186 | F&M | To be Updated | To be Updated |
| 187 | FENDER | To be Updated | To be Updated |
| 188 | FINDTRON | To be Updated | To be Updated |
| 189 | FIRESTONE | To be Updated | To be Updated |
| 190 | FIVRE | To be Updated | To be Updated |
| 191 | FLEETWOOD | To be Updated | To be Updated |
| 192 | COMPANY | To be Updated | To be Updated |
| 193 | FROST RADIO | To be Updated | To be Updated |
| 194 | FULTONE | To be Updated | To be Updated |
| 195 | FUNKWERK ERFURT | To be Updated | To be Updated |
| 196 | FUTABA | To be Updated | To be Updated |
| 197 | GAMMATRON | To be Updated | To be Updated |
| 198 | GE | To be Updated | To be Updated |
| 199 | GEC | To be Updated | To be Updated |
| 200 | GECOVALVE | To be Updated | To be Updated |
| 201 | GELOSO MILANO | To be Updated | To be Updated |
| 202 | GENERAL ELECTRIC | To be Updated | To be Updated |
| 203 | GENERAL MOTORS | To be Updated | To be Updated |
| 204 | COMPANY | To be Updated | To be Updated |
| 205 | GIANT ELECTRONICS | To be Updated | To be Updated |
| 206 | GIBSON | To be Updated | To be Updated |
| 207 | GLASSCRAFT | To be Updated | To be Updated |
| 208 | GOLD AERO | To be Updated | To be Updated |
| 209 | GOLD BRAND | To be Updated | To be Updated |
| 210 | GOLD SEAL | To be Updated | To be Updated |
| 211 | GOLDEN COMET | To be Updated | To be Updated |
| 212 | GOLDEN GATE | To be Updated | To be Updated |
| 213 | GOLDENTONE | To be Updated | To be Updated |
| 214 | GOLDTONE | To be Updated | To be Updated |
| 215 | GOOD TONE | To be Updated | To be Updated |
| 216 | GRAND TONE | To be Updated | To be Updated |
| 217 | GRAYBAR ELECTRIC CO. | To be Updated | To be Updated |
| 218 | GREEN SEAL | To be Updated | To be Updated |
| 219 | GREENTRON | To be Updated | To be Updated |
| 220 | GREGO | To be Updated | To be Updated |
| 221 | GREYLOCK | To be Updated | To be Updated |
| 222 | GROM MES | To be Updated | To be Updated |
| 223 | GROOVE TUBE | To be Updated | To be Updated |
| 224 | GUIDE | To be Updated | To be Updated |
| 225 | HH SCOTT | To be Updated | To be Updated |
| 226 | HVRE | To be Updated | To be Updated |
| 227 | HALLICRAFTERS | To be Updated | To be Updated |
| 228 | HALTRON | To be Updated | To be Updated |
| 229 | HAMMARLUND | To be Updated | To be Updated |
| 230 | HAMMOND | To be Updated | To be Updated |
| 231 | HARMAN KARDON | To be Updated | To be Updated |
| 232 | HEATH | To be Updated | To be Updated |
| 233 | HELIOTRON | To be Updated | To be Updated |
| 234 | HEINTZ | To be Updated | To be Updated |
| 235 | KAUFMAN | To be Updated | To be Updated |
| 236 | HERCULES | To be Updated | To be Updated |
| 237 | HICKOK | To be Updated | To be Updated |
| 238 | HICKOK~SCOPE | To be Updated | To be Updated |
| 239 | HI-CONSTRON | To be Updated | To be Updated |
| 240 | HITACHI | To be Updated | To be Updated |
| 241 | HITRAY | To be Updated | To be Updated |
| 242 | HIT-RAY | To be Updated | To be Updated |
| 243 | HOFFMAN | To be Updated | To be Updated |
| 244 | HOGES | To be Updated | To be Updated |
| 245 | HONEYWELL | To be Updated | To be Updated |
| 246 | HUBTRON | To be Updated | To be Updated |
| 247 | HY-GAIN | To be Updated | To be Updated |
| 248 | HYTRON | To be Updated | To be Updated |
| 249 | HYVAC | To be Updated | To be Updated |
| 250 | ICATRON | To be Updated | To be Updated |
| 251 | IDEAL | To be Updated | To be Updated |
| 252 | IEC | To be Updated | To be Updated |
| 253 | IMPERIAL | To be Updated | To be Updated |
| 254 | IMPERIALTRON | To be Updated | To be Updated |
| 255 | INDUSTRO | To be Updated | To be Updated |
| 256 | INTERNATIONAL | To be Updated | To be Updated |
| 257 | ITT | To be Updated | To be Updated |
| 258 | JADIS | To be Updated | To be Updated |
| 259 | JAN ( Joint Army Navy ) | To be Updated | To be Updated |
| 260 | JEWEL – RCA | To be Updated | To be Updated |
| 261 | JHS | To be Updated | To be Updated |
| 262 | JINVINA | To be Updated | To be Updated |
| 263 | JJ | To be Updated | To be Updated |
| 264 | JOVE | To be Updated | To be Updated |
| 265 | J&R | To be Updated | To be Updated |
| 266 | JOHNSON | To be Updated | To be Updated |
| 267 | KADETTE | To be Updated | To be Updated |
| 268 | KAUFMAN | To be Updated | To be Updated |
| 269 | KEENTONE | To be Updated | To be Updated |
| 270 | KEN-RAD | To be Updated | To be Updated |
| 271 | KENRAD | To be Updated | To be Updated |
| 272 | KENRICH | To be Updated | To be Updated |
| 273 | KENTRON | To be Updated | To be Updated |
| 274 | KINODYNE | To be Updated | To be Updated |
| 275 | KLEERTONE | To be Updated | To be Updated |
| 276 | KNIGHT | To be Updated | To be Updated |
| 277 | LA RADIOTECHNIQUE | To be Updated | To be Updated |
| 278 | LEADER | To be Updated | To be Updated |
| 279 | LECTRON | To be Updated | To be Updated |
| 280 | LEGION | To be Updated | To be Updated |
| 281 | LESCO | To be Updated | To be Updated |
| 282 | LESLIE | To be Updated | To be Updated |
| 283 | LESTRON | To be Updated | To be Updated |
| 284 | LINDAI | To be Updated | To be Updated |
| 285 | LIVE-TONE | To be Updated | To be Updated |
| 286 | OPTA | To be Updated | To be Updated |
| 287 | LORENZ | To be Updated | To be Updated |
| 288 | LOS GATOS | To be Updated | To be Updated |
| 289 | LUMLEY | To be Updated | To be Updated |
| 290 | MACO | To be Updated | To be Updated |
| 291 | MACY | To be Updated | To be Updated |
| 292 | MAGICTRON | To be Updated | To be Updated |
| 293 | MAGNADYNE | To be Updated | To be Updated |
| 294 | MAGNATRON | To be Updated | To be Updated |
| 295 | MAGNAVOX | To be Updated | To be Updated |
| 296 | MAJESTIC | To be Updated | To be Updated |
| 297 | MAJOR | To be Updated | To be Updated |
| 298 | MARATHON | To be Updated | To be Updated |
| 299 | MARCONI | To be Updated | To be Updated |
| 300 | MARK’S | To be Updated | To be Updated |
| 301 | MARSHALL | To be Updated | To be Updated |
| 302 | MARTRON | To be Updated | To be Updated |
| 303 | MARVIN | To be Updated | To be Updated |
| 304 | MASCO | To be Updated | To be Updated |
| 305 | MASTER | To be Updated | To be Updated |
| 306 | MASTERTONE | To be Updated | To be Updated |
| 307 | MATSUSHITA | To be Updated | To be Updated |
| 308 | MAZDA | To be Updated | To be Updated |
| 309 | MCMURDO | To be Updated | To be Updated |
| 310 | MECK | To be Updated | To be Updated |
| 311 | MELLOTRON | To be Updated | To be Updated |
| 312 | MELODY MASTER | To be Updated | To be Updated |
| 313 | MELOPHONIC | To be Updated | To be Updated |
| 314 | MELOTONE | To be Updated | To be Updated |
| 315 | MELZ | To be Updated | To be Updated |
| 316 | MERCURY | To be Updated | To be Updated |
| 317 | MESA/BOOGIE | To be Updated | To be Updated |
| 318 | METEOR | To be Updated | To be Updated |
| 319 | MICRO | To be Updated | To be Updated |
| 320 | MING DA | To be Updated | To be Updated |
| 321 | MOJO TONE | To be Updated | To be Updated |
| 322 | MONITORADIO | To be Updated | To be Updated |
| 323 | MONOTRON | To be Updated | To be Updated |
| 324 | MOTOROLA | To be Updated | To be Updated |
| 325 | MULLARD | To be Updated | To be Updated |
| 326 | MULTIVOX | To be Updated | To be Updated |
| 327 | MUSIKTRON | To be Updated | To be Updated |
| 328 | MWT | To be Updated | To be Updated |
| 329 | MYTRON | To be Updated | To be Updated |
| 330 | NATIONAL | To be Updated | To be Updated |
| 331 | NATIONAL UNION | To be Updated | To be Updated |
| 332 | NEC | To be Updated | To be Updated |
| 333 | NEOTRON | To be Updated | To be Updated |
| 334 | NEPTRON | To be Updated | To be Updated |
| 335 | NEPTUNE | To be Updated | To be Updated |
| 336 | NESSTONE * * NEUHAUS | To be Updated | To be Updated |
| 337 | NJRT | To be Updated | To be Updated |
| 338 | NORTHERN ELECTRIC | To be Updated | To be Updated |
| 339 | NOVATRON | To be Updated | To be Updated |
| 340 | NOVOSIBIRSK | To be Updated | To be Updated |
| 341 | NUCLEAR | To be Updated | To be Updated |
| 342 | NUTONE | To be Updated | To be Updated |
| 343 | NUTRON | To be Updated | To be Updated |
| 344 | ODEON | To be Updated | To be Updated |
| 345 | OK | To be Updated | To be Updated |
| 346 | OLSON | To be Updated | To be Updated |
| 347 | OLYMPIC | To be Updated | To be Updated |
| 348 | OPERATONE | To be Updated | To be Updated |
| 349 | ORANGE | To be Updated | To be Updated |
| 350 | OREL | To be Updated | To be Updated |
| 351 | ORION | To be Updated | To be Updated |
| 352 | OSCILLOTRON | To be Updated | To be Updated |
| 353 | OSRAM | To be Updated | To be Updated |
| 354 | PACE SETTER | To be Updated | To be Updated |
| 355 | PACKARD | To be Updated | To be Updated |
| 356 | PACKARDBELL | To be Updated | To be Updated |
| 357 | PARAMOUNT | To be Updated | To be Updated |
| 358 | PEAVEY | To be Updated | To be Updated |
| 359 | PEERTRON | To be Updated | To be Updated |
| 360 | PENTA LABORATORIES | To be Updated | To be Updated |
| 361 | PENTA LABS | To be Updated | To be Updated |
| 362 | PENTRON | To be Updated | To be Updated |
| 363 | PEPTONE | To be Updated | To be Updated |
| 364 | PERFECTONE | To be Updated | To be Updated |
| 365 | PERFECTRON | To be Updated | To be Updated |
| 366 | PERMATEST | To be Updated | To be Updated |
| 367 | PERRYMAN | To be Updated | To be Updated |
| 368 | PHILC0 | To be Updated | To be Updated |
| 369 | PHILIPS | To be Updated | To be Updated |
| 370 | PHILLIPS | To be Updated | To be Updated |
| 371 | PHILOTRON | To be Updated | To be Updated |
| 372 | PHONOTRON | To be Updated | To be Updated |
| 373 | PILOTRON | To be Updated | To be Updated |
| 374 | PINNALCE | To be Updated | To be Updated |
| 375 | PIONEER | To be Updated | To be Updated |
| 376 | PLATO | To be Updated | To be Updated |
| 377 | PLAYTRON | To be Updated | To be Updated |
| 378 | PM EURO | To be Updated | To be Updated |
| 379 | POLJARON | To be Updated | To be Updated |
| 380 | POLYTRONICS LAB | To be Updated | To be Updated |
| 381 | POMOCO | To be Updated | To be Updated |
| 382 | POPE | To be Updated | To be Updated |
| 383 | POWERTONE | To be Updated | To be Updated |
| 384 | PREMIER | To be Updated | To be Updated |
| 385 | PSVANE | To be Updated | To be Updated |
| 386 | PUR-A-TONE | To be Updated | To be Updated |
| 387 | PUROTRON | To be Updated | To be Updated |
| 388 | QUADROTRON | To be Updated | To be Updated |
| 389 | QUALITONE | To be Updated | To be Updated |
| 390 | QUARK | To be Updated | To be Updated |
| 391 | TRON | To be Updated | To be Updated |
| 392 | RA-DEX-TRON | To be Updated | To be Updated |
| 393 | RAD-TEL | To be Updated | To be Updated |
| 394 | RADIOCOIN | To be Updated | To be Updated |
| 395 | RADIO SHACK | To be Updated | To be Updated |
| 396 | RADIOTONE | To be Updated | To be Updated |
| 397 | RADIOTRON | To be Updated | To be Updated |
| 398 | RAF | To be Updated | To be Updated |
| 399 | RAINBOW | To be Updated | To be Updated |
| 400 | RAM | To be Updated | To be Updated |
| 401 | RAULAND | To be Updated | To be Updated |
| 402 | RAVAC | To be Updated | To be Updated |
| 403 | RAYHEON | To be Updated | To be Updated |
| 404 | RAYTHEON | To be Updated | To be Updated |
| 405 | RAYTRON | To be Updated | To be Updated |
| 406 | RCA | To be Updated | To be Updated |
| 407 | REALISTIC | To be Updated | To be Updated |
| 408 | REAL-TONE | To be Updated | To be Updated |
| 409 | RECORDIO | To be Updated | To be Updated |
| 410 | REDDY KILOWATT | To be Updated | To be Updated |
| 411 | REGAL | To be Updated | To be Updated |
| 412 | REGENT | To be Updated | To be Updated |
| 413 | RELCO | To be Updated | To be Updated |
| 414 | Rossi | To be Updated | To be Updated |
| 415 | RFT | To be Updated | To be Updated |
| 416 | REFLECTOR | To be Updated | To be Updated |
| 417 | RELIABLE | To be Updated | To be Updated |
| 418 | RIVERA | To be Updated | To be Updated |
| 419 | ROGERS | To be Updated | To be Updated |
| 420 | ROHRE | To be Updated | To be Updated |
| 421 | ROHS | To be Updated | To be Updated |
| 422 | ROYAL | To be Updated | To be Updated |
| 423 | ROYALTRON | To be Updated | To be Updated |
| 424 | RT | To be Updated | To be Updated |
| 425 | RUBY | To be Updated | To be Updated |
| 426 | RWN | To be Updated | To be Updated |
| 427 | RYAZAN | To be Updated | To be Updated |
| 428 | RY-TONE | To be Updated | To be Updated |
| 429 | SANBORN | To be Updated | To be Updated |
| 430 | SAMSON | To be Updated | To be Updated |
| 431 | SAMSUNG | To be Updated | To be Updated |
| 432 | SATURN | To be Updated | To be Updated |
| 433 | SCHUAB | To be Updated | To be Updated |
| 434 | SCHUAB-LORENZ | To be Updated | To be Updated |
| 435 | SCOTT | To be Updated | To be Updated |
| 436 | SEARS | To be Updated | To be Updated |
| 437 | SEEBURG * * SELECTRON | To be Updated | To be Updated |
| 438 | SENCO | To be Updated | To be Updated |
| 439 | CARLSON | To be Updated | To be Updated |
| 440 | SHERWOOD | To be Updated | To be Updated |
| 441 | SHIELD | To be Updated | To be Updated |
| 442 | SHUGUANG | To be Updated | To be Updated |
| 443 | SIEMENS | To be Updated | To be Updated |
| 444 | SILVER | To be Updated | To be Updated |
| 445 | SILVER DOMINO | To be Updated | To be Updated |
| 446 | SILVER SHIELD | To be Updated | To be Updated |
| 447 | SILVER TONE | To be Updated | To be Updated |
| 448 | SILVERTONE | To be Updated | To be Updated |
| 449 | SIMPLEX | To be Updated | To be Updated |
| 450 | SKYLINE | To be Updated | To be Updated |
| 451 | SODION | To be Updated | To be Updated |
| 452 | SOLARTRON | To be Updated | To be Updated |
| 453 | SOLDANO | To be Updated | To be Updated |
| 454 | SOPHIA ELECTRIC | To be Updated | To be Updated |
| 455 | SONATRON | To be Updated | To be Updated |
| 456 | SONGBIRD | To be Updated | To be Updated |
| 457 | SONORA | To be Updated | To be Updated |
| 458 | SOVEREIGN | To be Updated | To be Updated |
| 459 | SOVTEK | To be Updated | To be Updated |
| 460 | SPARTON | To be Updated | To be Updated |
| 461 | SPEED | To be Updated | To be Updated |
| 462 | STANDARD | To be Updated | To be Updated |
| 463 | STANDARD BRAND | To be Updated | To be Updated |
| 464 | STANDARD TURNER | To be Updated | To be Updated |
| 465 | STANDARD TV | To be Updated | To be Updated |
| 466 | STAR | To be Updated | To be Updated |
| 467 | STERLING | To be Updated | To be Updated |
| 468 | STEWART WARNER | To be Updated | To be Updated |
| 469 | SUN | To be Updated | To be Updated |
| 470 | SUNLIGHT LAMP | To be Updated | To be Updated |
| 471 | SUPER AIRLINE | To be Updated | To be Updated |
| 472 | SUPERTONE | To be Updated | To be Updated |
| 473 | SUPERTRON | To be Updated | To be Updated |
| 474 | SVETLANA | To be Updated | To be Updated |
| 475 | SYLTONE | To be Updated | To be Updated |
| 476 | SYLVANIA | To be Updated | To be Updated |
| 477 | SYLVANIA INDUSTRIAL | To be Updated | To be Updated |
| 478 | SYNTRON | To be Updated | To be Updated |
| 479 | TAD | To be Updated | To be Updated |
| 480 | TAYLOR | To be Updated | To be Updated |
| 481 | TECTRON | To be Updated | To be Updated |
| 482 | TECUSA | To be Updated | To be Updated |
| 483 | TELAM | To be Updated | To be Updated |
| 484 | TELEDYNE | To be Updated | To be Updated |
| 485 | TELEFUNKEN | To be Updated | To be Updated |
| 486 | TELEKING | To be Updated | To be Updated |
| 487 | TELE-TONE | To be Updated | To be Updated |
| 488 | TELETONE | To be Updated | To be Updated |
| 489 | TELETRON | To be Updated | To be Updated |
| 490 | TELE-TRONICS | To be Updated | To be Updated |
| 491 | TELTRON | To be Updated | To be Updated |
| 492 | TEONEX | To be Updated | To be Updated |
| 493 | TESLA | To be Updated | To be Updated |
| 494 | TESLOVAK | To be Updated | To be Updated |
| 495 | THERMOTRON | To be Updated | To be Updated |
| 496 | TURNER | To be Updated | To be Updated |
| 497 | THOMAS | To be Updated | To be Updated |
| 498 | TIP TOP | To be Updated | To be Updated |
| 499 | TITAN | To be Updated | To be Updated |
| 500 | TOSHIBA | To be Updated | To be Updated |
| 501 | TRACE ELLIOT | To be Updated | To be Updated |
| 502 | TRAIL BLAZER | To be Updated | To be Updated |
| 503 | TRANSLETERONICS * * TRAVLER | To be Updated | To be Updated |
| 504 | TRIAD | To be Updated | To be Updated |
| 505 | TRIANGLE | To be Updated | To be Updated |
| 506 | TRIGON | To be Updated | To be Updated |
| 507 | TRIO TRON | To be Updated | To be Updated |
| 508 | TRIOTRON | To be Updated | To be Updated |
| 509 | TRIPLETONE | To be Updated | To be Updated |
| 510 | TRIPLE TRON | To be Updated | To be Updated |
| 511 | TRIPLETRON | To be Updated | To be Updated |
| 512 | TROJAN | To be Updated | To be Updated |
| 513 | TRONAL | To be Updated | To be Updated |
| 514 | TRONIX | To be Updated | To be Updated |
| 515 | TROY | To be Updated | To be Updated |
| 516 | TUNG-SOL | To be Updated | To be Updated |
| 517 | TUNGSRAM | To be Updated | To be Updated |
| 518 | ULTRATONE | To be Updated | To be Updated |
| 519 | ULTRON | To be Updated | To be Updated |
| 520 | ULYANOV | To be Updated | To be Updated |
| 521 | UNILINE | To be Updated | To be Updated |
| 522 | UNITED ELECTRON | To be Updated | To be Updated |
| 523 | UNITED ELECTRONICS | To be Updated | To be Updated |
| 524 | UNITONE | To be Updated | To be Updated |
| 525 | URECO | To be Updated | To be Updated |
| 526 | UREKATRON | To be Updated | To be Updated |
| 527 | VACOBUB | To be Updated | To be Updated |
| 528 | VACTRON | To be Updated | To be Updated |
| 529 | VAKUUMTECHNIK GMBH.,ERLANGEN | To be Updated | To be Updated |
| 530 | VALVE ART | To be Updated | To be Updated |
| 531 | VALUTRON | To be Updated | To be Updated |
| 532 | VALVO | To be Updated | To be Updated |
| 533 | VAN DYKE | To be Updated | To be Updated |
| 534 | VENUS | To be Updated | To be Updated |
| 535 | VESTA | To be Updated | To be Updated |
| 536 | VICTOR | To be Updated | To be Updated |
| 537 | VIDEO | To be Updated | To be Updated |
| 538 | VIDEON | To be Updated | To be Updated |
| 539 | VIKING | To be Updated | To be Updated |
| 540 | VISSEAUX | To be Updated | To be Updated |
| 541 | VISTRON | To be Updated | To be Updated |
| 542 | VOLTRON | To be Updated | To be Updated |
| 543 | VOM | To be Updated | To be Updated |
| 544 | VM | To be Updated | To be Updated |
| 545 | VOSKHOD | To be Updated | To be Updated |
| 546 | VULTRON | To be Updated | To be Updated |
| 547 | WARDS | To be Updated | To be Updated |
| 548 | WATERS | To be Updated | To be Updated |
| 549 | WAVETONE | To be Updated | To be Updated |
| 550 | WEBCOR | To be Updated | To be Updated |
| 551 | WEBER | To be Updated | To be Updated |
| 552 | WELTONE | To be Updated | To be Updated |
| 553 | WESTERN ELECTRIC COMPANY | To be Updated | To be Updated |
| 554 | WESTINGHOUSE | To be Updated | To be Updated |
| 555 | WESTRON | To be Updated | To be Updated |
| 556 | WF | To be Updated | To be Updated |
| 557 | WHIRLWIND | To be Updated | To be Updated |
| 558 | WILLOW VALE | To be Updated | To be Updated |
| 559 | WINDSOR | To be Updated | To be Updated |
| 560 | WINSLOW | To be Updated | To be Updated |
| 561 | WINGED C | To be Updated | To be Updated |
| 562 | WIZARD | To be Updated | To be Updated |
| 563 | WONDER-TONE | To be Updated | To be Updated |
| 564 | WOODWARDS | To be Updated | To be Updated |
| 565 | WURLITZER | To be Updated | To be Updated |
| 566 | YALE | To be Updated | To be Updated |
| 567 | ZAERIX | To be Updated | To be Updated |
| 568 | ZALYTRON | To be Updated | To be Updated |
| 569 | ZENITH | To be Updated | To be Updated |
| 570 | ZETKA PROCESS | To be Updated | To be Updated |
