| (up)date
     | item
     | size
   | 
    | 2003-03-30
     | Numeric and symbol display tubes (nixie)
     | 777,519 bytes (fr)
   | 
    | 2006-02-02
     | Generator Röhren Tubes for r.f. heating. ☆Robert Schmalstieg☆
     | 25,148,425 bytes (de)
   | 
    | 2006-02-02
     | Sende Röhren 1976/77 Transmitting Tubes. ☆Robert Schmalstieg☆
     | 46,839,789 bytes (de)
   | 
    | 2006-02-02
     | Sende Röhren 1980/81 Transmitting Tubes. ☆Robert Schmalstieg☆
     | 58,897,238 bytes (de)
   | 
    | 2006-02-02
     | Wanderfeld Röhren 1982/83 Travelling Wave Tubes. ☆Robert Schmalstieg☆
     | 30,532,002 bytes (de)
   | 
    | 2011-09-16
     | Grid-Controlled Tubes or RF-Excited CO, Lasers ☆Bernhard Voss☆
     | 3,642,474 bytes
   | 
    | 2011-09-16
     | Transmitter and Generator Tubes ☆Bernhard Voss☆
     | 1,692,132 bytes
   | 
    | 2011-09-16
     | Topfkreise führ Fernsehanwendungen. (Tank circuits for TV applications.) 1980/81. ☆Bernhard Voss☆
     | 2,710,101 bytes (de)
   | 
    | 2011-09-16
     | Traveling Wave Tube Amplifiers & Backward Wave Oscillators 1986. ☆Bernhard Voss☆
     | 5,098,307 bytes
   | 
    | 2012-07-29
     | Pocket Book - Contents 1964/65. ☆Peter Gerber☆
     | 494,299 bytes
   | 
    | 2012-07-29
     | Pocket Book - Tubes (part 1) 1964/65. ☆Peter Gerber☆
     | 1,462,770 bytes
   | 
    | 2012-07-29
     | Pocket Book - Tubes (part 2) 1964/65. ☆Peter Gerber☆
     | 14,945,137 bytes
   | 
    | 2019-03-14
     | Pocketbook 1958-59.
     | 14,347,587 bytes
   | 
    | 2021-03-20
     | Pocketbook 1964-65,742 pages.
     | 153,085,924 bytes
   | 
    | 2022-06-12
     | Tubes and Rectifiers, Binder 1, 1962, 575 pages.
     | 116,205,831 bytes (de)
   | 
    | 2022-06-12
     | Tubes and Rectifiers, Binder 2, 1963, 677 pages.
     | 109,228,237 bytes (de)
   | 
    | 2022-09-03
     | Tubes and Rectifiers, Binder 3, 1961, 364 pages.
     | 67,479,850 bytes (de)
   | 
    | 2023-11-28
     | Image Pick-upTubes, Image Intensifier Tubes, Signal Storage Tubes, 112 pages.
     | 43,769,407 bytes
   | 
    | 2023-11-28
     | Raisting Earth Station for Satelite Relay Communication, 1965, 12 pages.
     | 6,698,388 bytes
   | 
    | 2023-11-28
     | Traveling-Wave Tubes RW6 and RW80, 32 pages.
     | 17,693,517 bytes
   | 
    | 2023-11-28
     | Transmitting Tubes Technical Data, 1958, 48 pages.
     | 5,911,507 bytes (de)
   | 
    | 2023-11-28
     | Special Tubes Technical Data, 1956, 12 pages.
     | 1,849,796 bytes (de)
   | 
    | 2023-11-28
     | Summary of Siemens Power and Special Purpose Tubes, 1965, 36 pages.
     | 6,079,785 bytes
   | 
    | 2023-11-28
     | Transmitting/Oscillator Tubes RS3005 & more, 3 pages.
     | 2,090,777 bytes
   | 
    | 2023-11-28
     | World Wide Use of Siemens Traveling-Wave Tubes in Satellite Ground Stations, 1969, 4 pages.
     | 2,025,317 bytes
   | 
    | 2023-11-28
     | High-Power Traveling-Wave TubeYH1041, 1967, 8 pages.
     | 4,817,820 bytes
   | 
    | 2023-11-28
     | 12-kW High-Power Traveling-Wave Tube YH1045, 1968, 4 pages.
     | 2,306,056 bytes
   | 
    | 2023-11-29
     | Factory Brochure 'Electron Tubes', 1961, 76 pages.
     | 46,483,540 bytes (de)
   | 
    | 2023-11-29
     | Transmitting & Generating Tubes, 74 pages.
     | 23,499,014 bytes
   | 
    | 2023-12-02
     | Alphanumeric Displau Units 2AN52 and AN70, 8 pages.
     | 3,700,299 bytes (de)
   | 
    | 2023-12-02
     | Electronic Components Bulletin, 1965-05, 40 pages.
     | 22,664,001 bytes
   | 
    | 2023-12-02
     | MicrowaveTubes, 6 pages.
     | 2,503,341 bytes
   | 
    | 2023-12-02
     | Special Quality Tubes, 6 pages.
     | 2,203,854 bytes
   | 
    | 2023-12-02
     | Special Amplifier Tubes, 6 pages.
     | 2,162,690 bytes (de)
   | 
    | 2023-12-02
     | TWT RW21, 36 pages.
     | 26,556,565 bytes
   | 
    | 2023-12-02
     | TWT Amplifiers and BWOs ShortForm, 8 pages.
     | 5,825,711 bytes
   | 
    | 2023-12-02
     | Xenon FlashTubes Application Notes, 16 pages.
     | 5,103,246 bytes
   | 
    | 2023-12-02
     | YH1041 High Power TWT - Design & Application, 8 pages.
     | 2,737,295 bytes
   | 
    | 2023-12-03
     | Cavities Components PowerAmplifiers, 24 pages.
     | 13,573,809 bytes
   | 
    | 2023-12-03
     | Entwicklungen bei Siemens Microwellenroehren, 8 pages.
     | 6,376,711 bytes (de)
   | 
    | 2023-12-03
     | Gas-Laser Lieferprogramm, 1972/73, 8 pages.
     | 1,747,126 bytes (de)
   | 
    | 2023-12-03
     | Siemens Helium Neon Laser LG64, 2 pages.
     | 934,741 bytes
   | 
    | 2023-12-03
     | High Power Microwave Tubes, 4 pages.
     | 1,593,216 bytes
   | 
    | 2023-12-03
     | Industrial Receiving Tubes, 6 pages.
     | 2,186,642 bytes
   | 
    | 2023-12-03
     | Industrie Generator-Roehren, 2 pages.
     | 820,259 bytes (de)
   | 
    | 2023-12-03
     | Microwave Tubes, 6 pages.
     | 2,687,008 bytes
   | 
    | 2023-12-03
     | Planar Triodes and Coaxial Tetrodes, 4 pages.
     | 2,207,159 bytes
   | 
    | 2023-12-03
     | Power Grid Tubes, High Voltage Rectifiers and Thyratrons, 8 pages.
     | 3,338,866 bytes
   | 
    | 2023-12-03
     | Power Grid Tubes, High Voltage Rectifiers and Thyratrons, 8 pages.
     | 3,336,196 bytes
   | 
    | 2023-12-03
     | RS1082CL Metal-Ceramic Tetrode, 4 pages.
     | 1,461,486 bytes
   | 
    | 2023-12-03
     | RS2012CL 10kW Metal-Ceramic Tetrode, 4 pages.
     | 1,705,188 bytes
   | 
    | 2023-12-03
     | RS2022CL 10kW Metal-Ceramic Tetrode, 4 pages.
     | 1,790,468 bytes
   | 
    | 2023-12-03
     | RS2024CL 10kW Metal-Ceramic Tetrode, 4 pages.
     | 1,696,524 bytes
   | 
    | 2023-12-03
     | RS2032CL 10kW Metal-Ceramic Tetrode, 4 pages.
     | 1,563,534 bytes
   | 
    | 2023-12-03
     | RS3002CL 2kW Power Triode, 4 pages.
     | 1,587,328 bytes
   | 
    | 2023-12-03
     | Planar Triodes and Tetroden, 6 pages.
     | 1,904,152 bytes (de)
   | 
    | 2023-12-03
     | Transmitting and Industrial Tubes, 8 pages.
     | 3,846,633 bytes (de)
   | 
    | 2023-12-03
     | YL1055 Metal-Ceramic Tetrode, 4 pages.
     | 1,513,408 bytes
   | 
    | 2023-12-04
     | Datas RS2024CL Transmitting Tetrode, 1970, 8 pages.
     | 2,172,352 bytes (de)
   | 
    | 2023-12-04
     | Data RW1120 Power Traveling Wave Tube, 1968, 9 pages.
     | 3,817,100 bytes
   | 
    | 2023-12-04
     | RW1125 Power TWT and RW88 TWT Amplifiers, 1975, 23 pages.
     | 3,125,963 bytes
   | 
    | 2023-12-04
     | Photo RW1270, 2 pages.
     | 451,504 bytes (fr)
   | 
    | 2023-12-04
     | Photo RW3010, 2 pages.
     | 453,655 bytes
   | 
    | 2023-12-04
     | RW48 Power TWT, 1973, 3 pages.
     | 893,861 bytes
   | 
    | 2023-12-04
     | Photo RW88, 2 pages.
     | 448,869 bytes
   | 
    | 2023-12-04
     | Latest About TWTs, 2 pages.
     | 757,844 bytes
   | 
    | 2023-12-04
     | Permanent Displays with Liquid Crystals, 2 pages.
     | 672,728 bytes
   | 
    | 2023-12-04
     | Power and Special Purpose Tubes Triodes Tetrodes, 1967, 110 pages.
     | 31,793,128 bytes
   | 
    | 2023-12-04
     | Power and Special Purpose Tubes TWT BWO.pdf, 1967, 146 pages.
     | 42,731,664 bytes
   | 
    | 2023-12-04
     | Transmitting and Generating Tubes supplement, 1964, 12 pages.
     | 2,039,526 bytes
   | 
    | 2023-12-04
     | Transmitting and Generator Tubes supplement, 1965, 20 pages.
     | 3,648,843 bytes
   | 
    | 2023-12-04
     | Microwave Transmitting Tubes, 1964, 12 pages.
     | 3,148,838 bytes (fr)
   | 
    | 2023-12-04
     | TWTs and BWOs, 1973, 3 pages.
     | 1,681,985 bytes
   | 
    | 2023-12-04
     | Vacuum Relais VR121 VR311 VR411, 1972, 3 pages.
     | 714,065 bytes
   | 
    | 2023-12-04
     | Vidicons, 1976, 29 pages.
     | 18,841,742 bytes
   | 
    | 2023-12-04
     | Data XQ1290-XQ1298 Vidicon's, 1976, 8 pages.
     | 2,597,726 bytes (de)
   | 
    | 2023-12-04
     | Data XQ1360 Vidicon, 1976, 4 pages.
     | 1,372,525 bytes (de)
   | 
    | 2023-12-04
     | Photo YD1381 Planar Triode, 4 pages.
     | 482,042 bytes
   | 
    | 2023-12-04
     | Data YH1010 TWT, 1970, 12 pages.
     | 3,636,195 bytes
   | 
    | 2023-12-04
     | Data YH1020 TWT, 1969, 24 pages.
     | 8,344,900 bytes
   | 
    | 2023-12-04
     | Data YH1047 TWT, 1970, 9 pages.
     | 3,153,943 bytes
   | 
    | 2023-12-04
     | Data YH1420 TWT, 6 pages.
     | 561,070 bytes
   | 
    | 2023-12-04
     | Data YK1170 YK1180 TWT-Klystron, 1969, 4 pages.
     | 1,424,063 bytes (de)
   | 
    | 2023-12-04
     | Data (Philips!) YL1231 (8654) RF Power tetrode, 1972, 6 pages.
     | 1,146,668 bytes
   | 
    | 2023-12-04
     | Data YL1570 Transmitting Tetrode/a>, 1976, 10 pages.
     | 3,715,589 bytes (de)
 |