Brown, David R.
Found in 142 Collections and/or Records:
Project Whirlwind Limited Memo L-166. Minutes of weekly group leader meeting discussing display for AN/FSQ-7, installation of AN/FSQ-7 (XD-1), plans for the direction center buildings, gap fillers for SAGE, plans for IBM research, transfer of information between IBM and MIT, Group 63 X-ray program, status of AN/FSQ-7 (XD-1), and meetings. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, A. P. Kromer, J. C. Proctor, N. H. Taylor, and P. Youtz.
Project Whirlwind Limited Memo L-167. Minutes of weekly group leader meeting discussing status of AN/FSQ-7 program, status of combat center design, liaison, maskers for fine-grain data, advanced development program, and space survey. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, A. P. Kromer, J. C. Proctor, and N. H. Taylor.
Project Whirlwind Limited Memo L-61. Minutes of weekly group leader meeting discussing flexowriter equipment, IBM, plug-in units, ERA drums, relations with Lincoln, and budget. Attending: C. W. Adams, D. R. Brown, S. H. Dodd, H. Fahnestock, N. H. Taylor, C. R. Wieser, P. Youtz.
MIT DIC 6889. Project Whirlwind Memo M-2420. The only tests applied to all cores are those to determine acceptable values of [subscript r]V[subscript 1]. Other tests are made on a sample basis. Since the memory-core-procurement program is on a development basis, but has an inflexible time schedule, modifications of the specifications can be expected.
MIT DIC 6345. Project Whirlwind Memo M-295. Memorandum on a visit by project Whirlwind I research teams to investigate 7AK7 processing at the Sylvania Radio-Tube Plant at Emporium, Pa., March 2, 1948.
MIT DIC 6889. Project Whirlwind Memo M-2462. A review of the interest of Group 63 has shown which basic quantities require experimental determination. These include anisotropy, exchange coefficient, and relaxation frequency. Measurements can be made most directly with single-crystal ferrites. These measurements are necessary to verify the analysis of the switching mechanism in square-loop ferrites. They are also measurements of primary importance to Group 37.
MIT DIC 6889. Project Whirlwind Memo M-2454. Groups 37 and 63 will pool their resources to support a program for obtaining single-crystal ferrites. An evaluation of organizations best equipped to undertake the program is the first step. Microwave line-broadening experiments will be undertaken to study polycrystalline samples from the MgO•MnO•Fe[subscript 2]O[subscript 3] system.
Project Whirlwind Memo M-2449. A Joint MIT-IBM Core Measurement Committee will coordinate core measurement activity at MIT, IBM (High Street and Plant 2), general Ceramics, and RCA Victor. The round robin completed September 24 to calibrate measurement equipment at all test sites will be repeated at the end of October. To provide a frequent check on measurement techniques at the different sites, measure cores will be sent to MIT for verification.
MIT DIC 6889. Project Whirlwind Memo M-1490. Two procedures are outlined. The first is for the receipt of one or a small number of cores submitted for evaluation. The second is for the case of a lot of cores where the particular body has previously been evaluated.
MIT DIC 6345. Project Whirlwind Memo M-116. Memorandum on second trip to Sylvania in Emporium, PA to discuss storage tubes.
MIT DIC 6889. Project Whirlwind Memo M-2843. A trip was made to the Burroughs Research Center to discuss magnetic-core computer components and fabrication of metal cores. They are planning to make and improve metal cores and they have used magnetic cores in logical switching applications.
MIT DIC 6889. Project Whirlwind Memo M-1586. 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 to bring the two together. Non-uniformity is being studied. Magnetics, Inc. is going ahead with production of the 20,000 cores and will complete delivery by October 31, 1952.
MIT DIC 6889. Project Whirlwind Memo M-1568. The conversations covered three subjects: 1) the schedule of delivery of all the units on order, 2) inspection of completed Burroughs units, 3) testing of these units.