Project Whirlwind: Recent submissions

Now showing items 1261-1280 of 1737

    • Rectangular Hysteresis Loop Materials in a Non-Destructive Read System 

      Frank, Werner I. (MIT Department of Electrical Engineering, 1952-10-20)
      Master's Thesis Research proposal on Rectangular Hysteresis Loop Materials in a Non-Destructive Read System.

    • Preliminary MTC System Test 

      Anderson, Harlan E. (MIT Digital Computer Laboratory, 1953-03-06)
      A preliminary test of MTC, using about half of the computer, was performed. The arithmetic element and output scope displays were tested by a fixed program which generated sines and cosines and displayed them.

    • MTC Meeting of August 18, 1952 

      Hosier, W. A. (MIT Digital Computer Laboratory, 1952-08-20)
      Decisions and progress relevant to the proposed Memory Test Computer (MTC) are summarized for distribution to those interested, and to trace development of the computer.

    • Visit to RCA Victor in Camden, January 14, 1953 

      Vinal, Francis E. (MIT Digital Computer Laboratory, 1953-01-22)
      The writer visited the RCA Victor Ferrite Plant and development Laboratory in Camden, N. J., and was favorably impressed by their staff's feeling for the problem as well as the facilities available in the laboratory. They ...

    • Testing of Metallic Cores 

      Hughes, Arthur D. (MIT Digital Computer Laboratory, 1953-01-07)
      Of 668 metallic cores tested, 38.8 percent were selected as good cores. The specification for a good core were: (1) an absence of disturb sensitivity,* (2) a switching time of 7.6 to 9.3 microseconds and (3) a disturbed-one ...

    • Group 63 Seminar on Magnetism VIII 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-11-03)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include heat effects, domain energies, and preferred directions of magnetization.

    • Trip to General Ceramics, November 19-20, 1952 

      Canty, W. J. (MIT Digital Computer Laboratory, 1952-12-02)
      A trip to General Ceramics and Steatite Corporation is reported. Calibration of the Tektronix 513-D Oscilloscope used in conjunction with ferrite-core pules-test equipment showed the internal voltage calibrator to be ...

    • Visit to Sperry Gyroscope Co. (C. R. Wieser, W. K. Linvill) 

      Linvill, W. K. (MIT Servomechanisms Laboratory - ATCP, 1950-02-02)
      Sperry has built a 5000-megacycle, continuous-wave combined omni-range and distance measuring facility. Tests at Sperry indicate a range of 30 miles, azimuth accuracy ± 0.5 degree, distance accuracy ± 0.1 mile. Multipath ...

    • Group 63 Seminar on Magnetism, IX 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-11-10)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include domain configuration of ferromagnetic material, domain closure, strains, applications of hysteresis curves, and memory storage for the Whirlwind II ...

    • MTC Meeting of August 22, 1952 

      Everett, R. R.; Hosier, W. A. (MIT Digital Computer Laboratory, 1952-08-22)
      Decisions and progress relevant to the proposed Memory Test Computer (MTC) are summarized for distribution to those interested, and to trace development of the computer.

    • Group 63 Seminar on Magnetism, XX 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-12-18)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the Newton's laws, motion of atomic particles, and the time-independent Schroedinger equation.

    • Lincoln Division 6 Group Organization List 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1953-02-09)
      Memorandum listing Lincoln Division 6 Group Organization.

    • Laboratory Personnel 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1952-05-15)
      Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory. Revised May 15, 1952.

    • Whirlwind II Meeting of February 29, 1952 

      Taylor, Norman H.; Mayer, Rollin P. (MIT Digital Computer Laboratory, 1952-03-03)
      This note abstracts the discussion of the meeting attended by the following engineers. It is intended to provide a record to trace the evolution of the WWII system.

    • Group 63 Seminar on Magnetism, XXV 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-01-26)
      Appendix to a memo for a Group 63 seminar on magnetism. Topics include magnetism, quantum mechanics, and perturbations theory.

    • Trip to Magnetics, Inc., August 5, 1952 

      Brown, David R. (MIT Digital Computer Laboratory, 1952-08-08)
      We have reviewed the measurements made on the batch of 300 molybdenum permalloy cores, received July 23, 1952, at Magnetics, Inc., and find that their measurements do not differ greatly from ours. More precision is needed ...

    • Group 63 Seminar on Magnetism, XLIII 

      Loeb, Arthur L.; Goodenough, John B.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-03-25)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include Heusler alloys, the Heisenberg model, the Zener model, the Heisenberg theory of ferromagnetism, and the collective electron theory based on the ...

    • Testing Cores for WWII 

      McCusker, J. H. (MIT Digital Computer Laboratory, 1953-03-30)
      Since approximately one to two tests per second have to be made to test sufficient cores for WWII in thirteen weeks, the present testing technique is unfeasible. Semi-automatic or preferably completely automatic testing ...

    • Group 63 Seminar on Magnetism, XXXII 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-02-16)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include statistical mechanics, spin functions, and space functions.

    • Group 63 Seminar on Magnetism, XXII 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-01-08)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the Schroedinger equation, orthonormality, energy of a system, and the potential wall problem.