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Frank's electron Tube Data sheets Raytheon documents  

(up)date item size
2003-09-23 Raytheon - Handbook of Amateur Tube Uses 1938. Thanks to John Atwood. 6,740,860 bytes
2006-09-02 Raytheon - The Raysistor 1964. 287,203 bytes
2007-09-07 Pocket Databook Radio Receiving Tubes 1937. Thanks to John Atwood. 7,834,734 bytes
2007-09-07 Important Characteristics - Amateur Tubes 1939. Thanks to John Atwood. 136,948 bytes
2007-09-07 Characteristic Data Chart 1940. Thanks to John Atwood. 1,520,060 bytes
2012-10-12 Symbolray monoscope application notes. 9,255,277 bytes
2013-07-11 Radio Tube Data and Substitution Chart 1945. 12,566,480 bytes
2017-11-26 Microwave And Power Tubes 1963, 713 pages. 380,287,528 bytes
2017-11-26 Microwave Tube Operation 1975, 56 pages. 35,810,571 bytes
2018-09-02 Industrial and Power Tubes. 13,631,127 bytes