Project Whirlwind: Recent submissions

Now showing items 1321-1340 of 1737

    • Hysteresis Test Results From Five New Glenco Ferroelectric Materials 

      Morrison, Channing D. (MIT Digital Computer Laboratory, 1953-03-10)
      Five new Glenco ferroelectric ceramic materials have a maximum squareness ratio ranging from + 0.61 to + 0.55. These materials are the best that have been tested to date.

    • Rudiments of Good Circuit Design 

      Taylor, Norman H. (MIT Digital Computer Laboratory, 1952-12-22)
      Circuits which depend on the absolute stability and reproducibility of components have proved to be unreliable and often impractical for field use. A study of the tolerances of a circuit to its component variations, when ...

    • WWII Meeting of September 12, 1952 

      Taylor, Norman H.; Hosier, W. A.; Olsen, K. H. (MIT Digital Computer Laboratory, 1952-11-18)
      This meeting was devoted to a brief survey of present plans for logical design and physical layout of the Memory Test Computer, simply to introduce it to those members of the group not working directly on it.

    • Engineering Relationships with IBM 

      Kromer, Arthur P. (MIT Digital Computer Laboratory, 1952-09-30)
      Memorandum summarizing engineering relationships with the International Business Machines Corporation for work on WWII.

    • Group 63 Seminar on Magnetism, II 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-10-09)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include Maxwell's Equations, Stokes Theorem, Gauss Theorem, and Wave Equations.

    • Laboratory Telephones 

      Fahnestock, H. (MIT Digital Computer Laboratory, 1952-03-05)
      Memorandum on an interim telephone system installed in the Whittemore Building laboratories.

    • Laboratory Personnel 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1952-04-01)
      Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory.

    • An RF Readout System for a Coincident-Current Magnetic-Core Memory 

      Widrowitz, Bernard (MIT Department of Electrical Engineering, 1952-12-19)
      Master's Thesis Research Proposal on an RF Readout System for a Coincident-Current Magnetic-Core Memory. It is the purpose of this thesis to evaluate the utility of the proposed system of high-frequency nondestructive ...

    • Group 63 Seminar on Magnetism XI 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1952-11-13)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include how the damped linear harmonic oscillator may be used to explain the properties of a dielectric when subjected to electromagnetic radiation.

    • Meetings at Project High on March 3 and 4 

      Watt, C. W. (MIT Digital Computer Laboratory, 1953-03-18)
      Two meetings, one on mechanical design of the general purpose plug in unit for WWII, and one on joint MIT-IBM component standards were held Tuesday, March 3; and one on drafting procedures was held on Wednesday, March 4. ...

    • Design and Construction Schedule, WWII Prototype 

      Kromer, A. P.; Mayer, Rollin P.; Taylor, Norman H. (MIT Digital Computer Laboratory, 1952-12-11)
      The present schedule for the development of the first prototype model of WWII calls for the urgent decisions concerning specifications and block diagrams to be made early in 1953 so that time will be available to procure, ...

    • Internal Documents on Ferromagnetic and Ferroelectric Cores 

      Papian, William N. (MIT Digital Computer Laboratory, 1952-06-10)
      A listing of reports, Engineering Notes, and Memoranda on various aspects of the ferromagnetic core activity is presented.

    • Visit to Federal Telecommunication Laboratories, January 23, 1950 

      Wieser, C. R. (MIT Servomechanisms Laboratory - ATCP, 1950-02-02)
      Current work on distance measuring equipment (DME) and omni-range systems was discussed. The DME accuracy specifications are ± 1/5 mile from 0-20 miles and ± 1% above 20 miles. An omni-range system under development is ...

    • First Note on Pulse Transformers for Memory Drivers 

      Durgin, Frank; Gates, Earle (MIT Digital Computer Laboratory, 1953-05-27)
      It is possible to drive the coordinate lines of a magnetic-core memory plane with small-current-capacity vacuum tubes by using push-pull pulse transformers with large ratios of current transformation. A push-pull transformer ...

    • MTC Meeting of August 4, 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.

    • Laboratory Personnel 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1953-01-15)
      Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory.

    • Minutes of the Meeting of August 1, 1952 

      Sutro, Louis (MIT Digital Computer Laboratory, 1952-08-06)
      This report summarizes the work done on ONR Project NR232-001 under the extension of Contract N5ori-06002, for the second quarter of 1952. The bulk of the work continues to be applied to the application of a computer to a ...

    • Group 63 Seminar on Magnetism, XXXV 

      Loeb, Arthur L.; Menyuk, Norman (MIT Digital Computer Laboratory, 1953-03-12)
      This memo is a summary of a Group 63 seminar on magnetism. Topics include the Zener model of ferromagnetism.

    • Laboratory Personnel 

      Digital Computer Laboratory Administrative Staff (MIT Digital Computer Laboratory, 1952-08-01)
      Memorandum listing Laboratory Personnel of the MIT Digital Computer Laboratory.

    • Changes in Internal Storage and Computing Time Allocation Given in M-1913 (Supplement to M-1815: 1953 Cape Cod System) 

      Walquist, R. L. (MIT Digital Computer Laboratory, 1953-05-07)
      The North Truro CPS-6B is to operate with a scan time of 12 seconds in the 1953 Cape Cod System. The major computing frame for the data processing program will also be set at 12 seconds. A redistribution of ES has been ...