Canty, W. J.

Scope and Contents

Project Whirlwind Memo 6M-3742. Points of agreement between IBM and MIT personnel present at a meeting held at IBM for the purpose of discussing FSQ-7 core memory are enumerated. Proposed future development work is described.

Scope and Contents Division 6 Memo M-3317. Memorandum discussing the evaluation of XD-1 by a series of tests made over a period of a few weeks ending March 1, 1955. Existing XD-1 reliability programs were used during most phases of test. Machine operation was baaed on its logical and physical completeness, reliability, margin data, and its ability to withstand mechanical and thermal shock. Includes: introduction and outline of tests. This memorandum represents an expansion of 6M-3271 "XD-1 Test...

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-2316. Memorandum on the investigation of the optimum sense winding geometry of a 64 x 64 memory plane.

Scope and Contents

Project Whirlwind Memo M-2197. This note contains a survey of the existing readout and digit-plane driving systems as well as a survey of some of the more promising new systems that are proposed. Preliminary block diagrams with weak and strong points of each system are also included.

Scope and Contents

MIT DIC 6889. Project Whirlwind Memo M-2969. The largest number of cathodes for a 256²x33 memory and 128²x33 memory is estimated to be 4756 and 1912 respectively.

Scope and Contents MIT DIC 6889. Project Whirlwind Memo M-1736. 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 accurate in the region of 0.2 v while the sweep speed calibration was off as much as 20 per cent on some ranges. Results of tests made on the ferrite-core tester at MIT and repeated on the at General Ceramics showed excellent...