Now showing items 1632-1651 of 1737

    • Test program for 1954 Cape Cod System 

      Boehmer, Howard W.; Wieser, C. Robert (Lincoln Laboratory - Division 6, 1955-07-28)
      In the letter from the SAGE Test Committee, Subject: Coordination Direction of 1954 Cape Cod System, 29 June 1955, the suggestion was made that planning, maintenance, operation and evaluation in the 1954 Cape Cod System ...
    • Test Results on the DCL Memory Plane 

      Guditz, E. A. (Lincoln Laboratory - Division 6, 1954-05-28)
      The DCL plane (C25) is compared with a standard MTC plane which has General Ceramics cores. Except for requiring slightly higher driving currents for maximum output, the DCL plane compares favorably with the MTC planes and ...
    • 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 ...
    • Testing of Individual Cores in MTC Memory Planes 

      Hughes, A. D. (MIT Digital Computer Laboratory, 1953-06-16)
      The 32 x 32 magnetic-core memory planes for MTC were constructed from cores tested and sorted on a production basis. To obviate the possibility of defective cores, each core was retested after it had been wired into a ...
    • 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 ...
    • Testing the Magnetic-Core Memory System in a Computer 

      Widrow, B. (Lincoln Laboratory - Division 6, 1953-09-18)
      A working memory has a "safe" operating region in a multidimensional space whose coordinates consist of the significant operating parameters of the memory. Errors occur only with excursions of the operating point outside ...
    • A Theory of Deviation from Close Packing in Hexagonal Metal Crystals 

      Goodenough, John B. (MIT Digital Computer Laboratory, 1952-09-11)
      A mechanism is proposed to show how the Fermi surface interacts with the Brillouin zone boundaries. The direction and relative magnitude of the variation of the c/a ratio for hexagonal crystals from the ideal value for ...
    • A Theory of Perovskite-Type Manganites (La,M(II))MnO₃ 

      Goodenough, John B. (Lincoln Laboratory - Division 6, 1954-11-30)
      Semicovalence and its effects on indirect magnetic-exchange interaction are reviewed and applied to the manganites. These considerations lead to qualitative predictions which are in complete accord with the following ...
    • Thesis Proposals and Progress Reports 

      Forrester, Jay W. (MIT Servomechanisms Laboratory, 1948-03-08)
      Memorandum on organization of thesis proposals and progress reports created by MIT Servomechanisms Laboratory research teams.
    • Third Meeting on Air Defense Computer, Nov. 7, 1951 

      Morriss, B. E. (MIT Digital Computer Laboratory, 1951-11-07)
      Memorandum on the third of a series of meetings of Digital Computer Laboratory research staff on the development of an Air Defense Computer.
    • Thoughts on Incremental Permeability 

      Goodenough, John B. (Lincoln Laboratory - Division 6, 1954-09-17)
      After a short discussion of the factors which influence the incremental permeability, three different methods are discussed which should give a large change in incremental permeability with a change of the biasing field. ...
    • Time Schedule for WWII Computer 

      Taylor, Norman H.; Mayer, Rollin P. (MIT Digital Computer Laboratory, 1952-03-25)
      Memorandum outlining the plan to obtain a WWII computer in the minimum amount of time and gives the dates on which certain decisions must be reached.
    • Time schedule for XD-1 machine specifications and evaluation reports 

      Forrester, Jay W. (Lincoln Laboratory - Division 6, 1955-02-07)
      Memorandum providing a time schedule for machine evaluation tests of XD-1.
    • Transformer Drive for a Coincident-Current Magnetic Memory 

      Gates, Earle K. (MIT Digital Computer Laboratory, 1954-01-05)
      Master's Thesis Proposal: Transformer Drive for a Coincident-Current Magnetic Memory.
    • Transients for cryotron tree switch 

      Epstein, Marvin. (Lincoln Laboratory - Division 6, 1956-03-30)
      Describes a cryotron tree switch, the initial conditions for the various transients, and the circuit parameter value. A simple method for calculating the pole zero pattern is found. Finally, an asymptotic expression is ...
    • Transistor circuits for driving coincident current memories. 

      Olsen, Kenneth H. (Lincoln Laboratory - Division 6, 1955-01-21)
      Memorandum discussing transistors and how they are made to pass large currents as needed in magnetic memories by turning off the currents while the transistors are being switched.
    • Transistor Magnetic Core Drivers 

      Oken, Stanley (MIT Department of Electrical Engineering, 1953-05-18)
      Master's Thesis Research Proposal on an investigation of the problems involved in using transistors to drive magnetic cores.
    • A transistor selection system for magnetic-core memory 

      Davidson, George A. (Lincoln Laboratory - Division 6, 1955-06-27)
      Master's thesis proposal on the topic of a transistor selection system for magnetic-core memory.
    • A transistorized amplifier-discriminator for core memory output sensing 

      Williams Sarles Jr., F. (MIT Department of Electrical Engineering, 1955-03-07)
      Master's thesis proposal discussing the problem of developing and constructing a transistor system to convert memory output into the presence and absence of standard computer pulses.
    • Transition system for air defense: estimate of cost and delivery for the initial sector 

      Division 2 Research Staff; Division 6 Research Staff (Lincoln Laboratory - Division 6, 1953-02-18)
      In Lincoln Laboratory Technical Memorandum No. 20, which describes the proposed Transition System for Air Defense, Section VIII indicates that a study was being made regarding the cost and time factors for an initial sector. ...