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James Van Allen journal, 1951?-December 1954
Page 8
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Harvard College Observatory and Center of Analysis of MIT Technical Report Number 4 Luigi G. [Jacchia?] "Atmospheric Density Profile and Gradients from Early Parts of Photographic Meteor Trails". Cambridge (1949) ------------------------------------------------------------- Army Map Service Technical Report Number 3 Construction and Testing of Equipment for the Photoelectric Observation of Occultation Project 8-35-04-002 (1 November 1949) [264893? 204893?] Army Map Service corps of Engineers Department of the Army Washington 16, D.C. Use [ |P2| ? 1P21 ? ] Photomultiplier ------> Brush Development Co amplifier BL-202 -----> two more stages ------> cathode follower -------> [Pen?] recorder BL-913 [sketch/picture/electric circuit schematic] electric circuit design including: [from?] BL-202, [510?] K, 1 [mz? mg? my?], 25 k, 6F5, 1 [mey? mez? meg?], 6 [of K?], 6F5, 220 K, [20? k], 3.3 k, 0.005, -913, [221? 220? k], [8.2? 6.2?] k, 0.03, 6V6, 1 [meg? mey? mez?], 5 k, 0.75, High Frequency Booster, Cathode Tube, [Typen? Japan?] motor
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Harvard College Observatory and Center of Analysis of MIT Technical Report Number 4 Luigi G. [Jacchia?] "Atmospheric Density Profile and Gradients from Early Parts of Photographic Meteor Trails". Cambridge (1949) ------------------------------------------------------------- Army Map Service Technical Report Number 3 Construction and Testing of Equipment for the Photoelectric Observation of Occultation Project 8-35-04-002 (1 November 1949) [264893? 204893?] Army Map Service corps of Engineers Department of the Army Washington 16, D.C. Use [ |P2| ? 1P21 ? ] Photomultiplier ------> Brush Development Co amplifier BL-202 -----> two more stages ------> cathode follower -------> [Pen?] recorder BL-913 [sketch/picture/electric circuit schematic] electric circuit design including: [from?] BL-202, [510?] K, 1 [mz? mg? my?], 25 k, 6F5, 1 [mey? mez? meg?], 6 [of K?], 6F5, 220 K, [20? k], 3.3 k, 0.005, -913, [221? 220? k], [8.2? 6.2?] k, 0.03, 6V6, 1 [meg? mey? mez?], 5 k, 0.75, High Frequency Booster, Cathode Tube, [Typen? Japan?] motor
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