| (up)date
     | item
     | size
   | 
    | 2006-02-02
     | Picture Tubes 1973/74. ☆Robert Schmalstieg☆
     | 14,404,107 bytes
   | 
    | 2006-02-02
     | Picture Tubes 1975/76. ☆Robert Schmalstieg☆
     | 14,386,159 bytes
   | 
    | 2008-02-16
     | Electron Tube and Microwave Device Summary 1970.
     | 50,092,930 bytes
   | 
    | 2013-01-01
     | Kuthe Hydrogen Thyratrons Index 1962.
     | 388,333 bytes
   | 
    | 2013-01-01
     | Kuthe 100kV Hydrogen Thyratron. (See F1087)
     | 1,666,228 bytes
   | 
    | 2013-01-01
     | Iatrons 1961.
     | 788,238 bytes
   | 
    | 2013-01-07
     | TWTs 1960.
     | 226,435 bytes
   | 
    | 2013-01-19
     | Electro-Optic Devices - Data Summary 1974/75.
     | 6,950,468 bytes
   | 
    | 2013-01-19
     | ITT_Hydrogen Thyratron Tubes 1967.
     | 3,410,839 bytes
   | 
    | 2013-01-19
     | Noise in Multiplier Phototubes 1965.
     | 1,408,787 bytes
   | 
    | 2013-01-19
     | Image Dissector Tube 1961.
     | 1,121,860 bytes
   | 
    | 2013-01-19
     | Unique Properties of Image Dissectors 1963.
     | 427,299 bytes
   | 
    | 2013-01-19
     | Noise in Image Dissector Tubes 1961.
     | 1,408,787 bytes
   | 
    | 2013-01-19
     | Signal-To-Noise Ratio in Image Dissectors.
     | 1,042,061 bytes
   | 
    | 2013-01-19
     | Daytime Star Acquisition and Tracking using The Image Dissector 1964.
     | 1,143,306 bytes
   | 
    | 2017-12-11
     | Industrial and Transmitting Triodes 1962. 399 pages.
     | 243,736,933 bytes
   | 
    | 2017-12-12
     | Iatron Tubes 1961. 75 pages.
     | 33,793,979 bytes
   | 
    | 2017-12-14
     | Hydrogen Thyratrons 1962. 130 pages.
     | 55,049,057 bytes
   | 
    | 2017-12-14
     | Traveling Wave Tubes 1960. 260 pages.
     | 116,200,274 bytes
   | 
    | 2018-05-31
     | Picture Tubes 1973/74.
     | 20,697,250 bytes
   | 
    | 2018-05-31
     | Picture Tubes 1975/76.
     | 21,869,956 bytes
   | 
    | 2018-09-02
     | Industrial Heating Tubes 1971.
     | 31,454,272 bytes
   | 
    | 2018-11-01
     | Power Tubes And Accessories.
     | 6,991,701 bytes
   | 
    | 2018-11-01
     | Hydrogen Thyratron Tubes 1984.
     | 6,991,701 bytes
 |