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File:FET Armstrong oscillator.svg

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by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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in 1913, was one of the earliest oscillator circuits. It is an LC oscillator, in which the frequency is determined by a
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If the file has been modified from its original state, some details may not fully reflect the modified file.
358:"}},"text\/plain":{"en":{"":"Wikimedia username"}}}}": --> 453:"}},"text\/plain":{"en":{"P6216":"copyrighted"}}}}": --> 154: 114: 399: 673: 668: 173:. In the Armstrong circuit, a little of the energy from the output of of the transistor, the 150: 42: 257: 705: 254: 8: 266: 177:
necessary for oscillation, is fed back into the input (gate) circuit by a small coil
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I, the copyright holder of this work, hereby publish it under the following license:
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The person who associated a work with this deed has dedicated the work to the
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copyrighted, dedicated to the public domain by copyright holder
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copyrighted, dedicated to the public domain by copyright holder
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as the active device. The Armstrong oscillator, invented by
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http://creativecommons.org/publicdomain/zero/1.0/deed.en
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Add a one-line explanation of what this file represents
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185:", inductively coupled to the tank circuit coil 279:Creative Commons Zero, Public Domain Dedication 94: 193: 136: 400:https://commons.wikimedia.org/user:Chetvorno 213: 203: 14: 46:Size of this PNG preview of this SVG file: 258:CC0 1.0 Universal Public Domain Dedication 716:The following other wikis use this file: 241: 253:This file is made available under the 125: 236: 701:The following page uses this file: 691:User created page with UploadWizard 632: 13: 774: 313: 307: 232: 143: 126: 76: 808: 781: 312: 298: 246: 240: 93: 31: 21: 295: 247: 144: 711: 636: 294: 26: 1: 582:original creation by uploader 556:original creation by uploader 36: 696: 538:Creative Commons CC0 License 512:Creative Commons CC0 License 320:Items portrayed in this file 226: 139:FET Armstrong oscillator.svg 7: 771: 165:consisting of the inductor 10: 813: 760:Usage on pt.wikipedia.org 750:Usage on fr.wikipedia.org 740:Usage on fa.wikipedia.org 730:Usage on es.wikipedia.org 720:Usage on bg.wikipedia.org 133: 128: 633: 239: 207: 16: 297: 100:This is a file from the 41: 690: 196: 104:. Information from its 764:Oscilador de Armstrong 724:Генератор на Армстронг 107:description page there 754:Oscillateur Armstrong 198:3 July 2013, 10:42:51 706:Armstrong oscillator 151:Armstrong oscillator 70:2,404 × 2,048 pixels 66:1,202 × 1,024 pixels 744:نوسان‌ساز آرمسترانگ 734:Oscilador Armstrong 52:Other resolutions: 669:18:02, 3 July 2013 421:Wikimedia username 408:author name string 356:Wikimedia username 348:author name string 800: 799: 712:Global file usage 694: 522:copyright license 508:copyright license 306: 291: 290: 223: 222: 122: 121: 102:Wikimedia Commons 32:Global file usage 804: 782: 681: 643: 461:copyright status 443:copyright status 430: 425: 415: 412: 402: 397: 304: 286: 283: 280: 277: 274: 255:Creative Commons 250: 249: 244: 243: 237: 209: 199: 153:circuit using a 148: 140: 134: 118: 97: 96: 90: 84: 73: 62:902 × 768 pixels 58:564 × 480 pixels 54:282 × 240 pixels 48:641 × 546 pixels 812: 811: 807: 806: 805: 803: 802: 801: 770: 710: 695: 687: 679: 635: 634: 631: 630: 629: 628: 627: 626: 625: 624: 622: 612: 611: 610: 608: 593: 592: 591: 590: 589: 588: 587: 586: 584: 572: 571: 570: 568: 549: 548: 547: 546: 545: 544: 543: 542: 540: 528: 527: 526: 524: 505: 504: 503: 502: 501: 500: 499: 498: 496: 485: 484: 483: 482: 481: 479: 467: 466: 465: 463: 440: 439: 438: 437: 436: 435: 434: 433: 432: 431: 426: 423: 417: 416: 413: 410: 404: 403: 398: 395: 386: 385: 384: 382: 372: 371: 370: 368: 333: 332: 331: 330: 329: 327: 311: 310: 309: 292: 284: 281: 278: 275: 272: 235: 234: 229: 224: 189: 159:Edwin Armstrong 138: 131: 124: 123: 112: 111: 110:is shown below. 86: 82: 75: 74: 51: 12: 11: 5: 810: 798: 797: 794: 790: 789: 786: 773: 769: 768: 767: 766: 758: 757: 756: 748: 747: 746: 738: 737: 736: 728: 727: 726: 713: 709: 708: 698: 693: 692: 689: 685: 682: 676: 671: 666: 662: 661: 658: 655: 652: 649: 646: 638: 623: 620: 618: 617: 616: 614: 613: 609: 604: 602: 601: 600: 599: 597: 585: 580: 578: 577: 576: 574: 573: 569: 566:source of file 564: 562: 561: 560: 559: 557: 553: 552:source of file 541: 536: 534: 533: 532: 530: 529: 525: 520: 518: 517: 516: 515: 513: 509: 497: 492: 490: 489: 488: 486: 480: 475: 473: 472: 471: 469: 468: 464: 459: 457: 456: 455: 454: 452: 448: 444: 419: 418: 406: 405: 391: 390: 389: 388: 387: 383: 380: 378: 377: 376: 374: 373: 369: 364: 362: 361: 360: 359: 357: 353: 349: 345: 341: 337: 328: 323: 321: 318: 317: 316: 315: 303: 302: 299: 296: 289: 288: 262: 261: 251: 231: 230: 228: 225: 221: 220: 215: 211: 210: 205: 201: 200: 195: 191: 190: 181:, called the " 169:and capacitor 149:Diagram of an 141: 132: 130: 127: 120: 119: 98: 88: 87: 45: 40: 39: 34: 29: 24: 19: 9: 6: 4: 3: 2: 809: 795: 792: 791: 787: 784: 783: 780: 777: 765: 762: 761: 759: 755: 752: 751: 749: 745: 742: 741: 739: 735: 732: 731: 729: 725: 722: 721: 719: 718: 717: 707: 704: 703: 702: 688: 683: 677: 675: 672: 670: 667: 664: 663: 659: 656: 653: 650: 647: 645: 644: 642: 619: 607: 603: 583: 579: 567: 563: 539: 535: 523: 519: 495: 491: 478: 474: 462: 458: 429: 422: 409: 401: 394: 379: 367: 363: 326: 322: 319: 300: 293: 287: 268: 267:public domain 264: 263: 259: 256: 252: 238: 219: 216: 212: 206: 202: 192: 188: 184: 180: 176: 172: 168: 164: 163:tuned circuit 160: 156: 152: 147: 142: 135: 116: 109: 108: 103: 99: 92: 91: 85: 80: 79:Original file 71: 67: 63: 59: 55: 49: 44: 38: 35: 33: 30: 28: 25: 23: 20: 18: 15: 778: 775: 715: 700: 640: 637:File history 271: 186: 183:tickler coil 182: 178: 170: 166: 145: 115:You can help 105: 77: 22:File history 621:3 July 2013 494:copyrighted 451:copyrighted 137:Description 697:File usage 678:641 × 546 654:Dimensions 381:some value 27:File usage 796:546.31494 788:641.12109 686:Chetvorno 651:Thumbnail 648:Date/Time 606:inception 596:inception 428:Chetvorno 414:Chetvorno 352:Chetvorno 227:Licensing 218:Chetvorno 146:English: 772:Metadata 301:Captions 208:Own work 175:feedback 37:Metadata 680:(25 KB) 665:current 660:Comment 366:creator 336:creator 325:depicts 305:English 129:Summary 81:‎ 793:Height 245:  214:Author 204:Source 785:Width 285:false 282:false 657:User 194:Date 17:File 393:URL 340:URL 276:CC0 155:FET 424:: 411:: 396:: 260:. 187:L1 179:L2 167:L1 68:| 64:| 60:| 56:| 50:. 171:C 117:. 72:.

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File:FET Armstrong oscillator.svg
641 × 546 pixels
282 × 240 pixels
564 × 480 pixels
902 × 768 pixels
1,202 × 1,024 pixels
2,404 × 2,048 pixels
Original file
Wikimedia Commons
description page there
You can help
Armstrong oscillator
FET
Edwin Armstrong
tuned circuit
feedback
Chetvorno
Creative Commons
CC0 1.0 Universal Public Domain Dedication
public domain
depicts
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