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Brown, David R.

 Person

Found in 142 Collections and/or Records:

A Comparison Between Square-Loop Metals and Ferrites for High-Speed Pulsed Operation, 1954 February 4

 File — Multiple Containers
Identifier: 16
Scope and Contents MIT DIC 6889. Project Whirlwind Memo M-2602. Metals and ferrites with rectangular hysteresis loops are used in magnetic amplifiers, switching networks, and data-storage systems. In these applications, the large-signal pulse response is most important. To reduce the effect of eddy currents, metals have been rolled to ultra-thin gage and high-resistivity ferrites have been used. By these techniques, eddy currents have been reduced to the point where relaxation effects limit the response time...
Dates: 1954 February 4

A Squareness Ratio for Coincident-current Memory Cores, 1952 July 17

 File — Multiple Containers
Identifier: 16
Scope and Contents

MIT DIC 6889. Project Whirlwind Engineering Note E-464. A quantitative index of hysteresis-loop squareness i s defined. It can be determined directly from the hysteresis loop or by pulse test.

Dates: 1952 July 17

Basis for Release of Ferrite-Memory-Core Specifications, 1954 June 17

 File — Multiple Containers
Identifier: 16
Scope and Contents MIT DIC 6889. Project Whirlwind Memo M-2873. MIT proposes approval of release of IBM engineering specifications No. 3043000, engineering change No. 11183, for the ferrite memory core to facilitate procurement negotiations with General Ceramics Corp. and the development and construction of test equipment. New specifications embodying a simplified test procedure, but not changing the memory-core characteristics, are expected on approximately September 1, 1954. Test-equipment planning should be...
Dates: 1954 June 17

Discussion of 7AK7 Processing, Emporium, Pa., June 15, 1948, 1948 June 18

 File — Multiple Containers
Identifier: 16
Scope and Contents

MIT DIC 6345. Project Whirlwind Memo M-499. Memorandum on a discussion by project Whirlwind I research teams on 7AK7 production at the Sylvania Radio-Tube Plant at Emporium, Pa., June 1t, 1948.

Dates: 1948 June 18

Extension of subcontract no. 49, 1955 July 6

 File — Multiple Containers
Identifier: 16
Scope and Contents

Division 6 Memo M-3738. A one-year extension of Subcontract No. 49 with the Philco Corporation was recommmended to (1) continue research aimed at establishing the reliability of the surface-barrier transistor and improving its performance in digital-computer circuits, (2) establish specifications for a computer surface-barrier transistor, (3) develop transistors for driving magnetic-core memories, and (4) develop digital-computer basic circuits.

Dates: 1955 July 6

Ferrites Speed Digital Computers, approximately 1953–1959

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Controlled Distribution Memo 6D-105. Memory units and matrix switches using new square-loop ferrite material increase speed and reliability of digital computers. Storage units with arbitrary-access and read-out time of five microseconds or less makes stored-information rapidly available without scanning time required by other systems. Reprinted from Electronics.

Dates: approximately 1953–1959

Group 63 approval committee meeting, May 31, 1955, 1955 June 1

 File — Multiple Containers
Identifier: 16
Scope and Contents

Division 6 Memo M-3652. Minutes of a Group 63 approval committee meeting discussing emitter-input gates, symbols, and the next meeting. Present: D. R. Brown, W. A. Clark, E. U. Cohler, N. L. Daggett, J. W. Forgie, T. H. Meisling, K. H. Olsen.

Dates: 1955 June 1

Group leaders' meeting, April 4, 1955, 1955 April 7

 File — Multiple Containers
Identifier: 16
Scope and Contents

Division 6 Limited Memo 6L-194. Minutes of weekly group leader meeting discussing Radar Coordinat:on Committee, Joint Services Advisory Committee, April 7 meeting on SAGE programming, space, April 6 Coordination Committee meeting, Colonel LaMontagna's Friday visits, ferrite memory cores, radar calibration, and personnel handbook. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, C. W. Farr, A. P. Kromer, J. C. Proctor, N. H. Taylor, and C. R. Wieser.

Dates: 1955 April 7

Group leaders' meeting, April 6, 1953, 1953 April 8

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-91. Minutes of weekly group leader meeting discussing draft situation, status of WWII decisions, staff salary reviews, and visit on May 4 by Watson. Present: Jay W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, J. C. Proctor, N. H. Taylor, C. R. Wieser, P. Youtz.

Dates: 1953 April 8

Group leaders' meeting, April 7, 1952, 1952 April 9

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-37. Minutes of weekly group leader meeting discussing "time schedule for Whirlwind II computer.". Attending were: J. W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, N. H. Taylor, C. R. Wieser. P. Youtz.

Dates: 1952 April 9

Group leaders' meeting, April 11, 1955, 1955 April 14

 File — Multiple Containers
Identifier: 16
Scope and Contents

Division 6 Limited Memo 6L-195. Minutes of weekly group leader meeting discussing Joint Services Advisory Committee, April 12 ADES meeting, personnel handbook, space, responsibilities for the SAGE system, Philco, General Ceramics, MTC, release of information to Rand, and Section C of 6520th AC&W Squadron. Present: R. R. Everett, D. R. Brown, S. H. Dodd, C. W. Farr, A. P. Kromer, J. C. Proctor, N. H. Taylor, and C. R. Wieser.

Dates: 1955 April 14

Group leaders' meeting, April 13, 1953, 1953 April 13

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-92. Minutes of weekly group leader meeting discussing revision of biweekly report, report on draft status of staff members, and staff salary review. Present: Jay W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, J. C. Proctor, R. R. Rathbone, N. H. Taylor, C. R. Wieser, P. Youtz.

Dates: 1953 April 13

Group leaders' meeting, April 15, 1952, 1952 April 14

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-38. Minutes of weekly group leader meeting discussing Whittemore space, block diagram meetings, Barta space, Lincoln finance, magnetic drums, and recruiting. Attending: J. W. Forrester, B. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, N. H. Taylor, C. R. Wieser, P. Youtz, J. C. Proctor.

Dates: 1952 April 14

Group leaders' meeting, April 18, 1955, 1955 April 21

 File — Multiple Containers
Identifier: 16
Scope and Contents

Division 6 Limited Memo 6L-196. Minutes of weekly group leader meeting discussing space, salary review, IBM engineering support program, second source for AN/FSQ-7 tubes. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, C. W. Farr, A. P. Kromer, J. C. Proctor, N. H. Taylor, C. R. Wieser, and P. Youtz.

Dates: 1955 April 21

Group leaders' meeting, April 20, 1954, 1954 April 22

 File — Multiple Containers
Identifier: 16
Scope and Contents Project Whirlwind Limited Memo L-147. Minutes of weekly group leader meeting discussing Sprague's report on air defense, meeting at Colorado Springs during week of April 12, building F, April 15 meeting on army 414 program, planning for the duplex central, IBM time schedules, staff salary review, advanced development program, meeting in Colorado Springs on budget, charactron and typotron development, General Ceramics, move to Lexington, visit by Boeing on April 16, and ADES contract....
Dates: 1954 April 22

Group leaders' meeting, April 21, 1952, 1952 April 22

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-39. Minutes of weekly group leader meeting discussing test equipment, administrative forms and memoranda, and indoctrination program. Attending: J. W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, N. H. Taylor, P. Youtz.

Dates: 1952 April 22

Group leaders' meeting, April 26, 1954, 1954 April 30

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-148. Minutes of weekly group leader meeting discussing progress report by military liaison office, extraordinary expense budget, IBM participation in installation of FSQ-7 (XD-1), and staff salary review. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, W. K. Linvill, J. C. Proctor, N. H. Taylor, and C. R. Wieser.

Dates: 1954 April 30

Group leaders' meeting, April 27, 1953, 1953 April 28

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-93. Minutes of weekly group leader meeting discussing change in time for next meeting, staff salary review, visitors and building alterations, professional societies, patents, procurement of magnetic materials, and motion pictures. Present: Jay W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, J. C. Proctor, C. R. Wieser, and P. Youtz.

Dates: 1953 April 28

Group leaders' meeting, April 28, 1952, 1952 April 30

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-40. Minutes of weekly group leader meeting discussing new staff and Project Lincoln progress report. Attending: D. R. Brown, C. W. Adams, S. H. Dodd, C. R. Weiser, N. H. Taylor, P. Youtz, H. Fahnestock and J. Ulman.

Dates: 1952 April 30

Group leaders' meeting, August 2, 1954, 1954 August 9

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-161. Minutes of weekly group leader meeting discussing ferrite memory cores, engineering for production AN/FSQ-7's, maintenance and spare parts for production AN/FSQ-7'S, Army 414 system, revision of TM-20, Joint Project Office, and IBM. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, A. P. Kromer, and C. R. Wieser.

Dates: 1954 August 9

Group leaders' meeting, August 3, 1953, 1953 August 3

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-112. Minutes of weekly group leader meeting discussing charactron for FSQ-7 display and magnetic-core memory for WWI. Present: C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, N. H. Taylor, C. R. Wieser, and P. Youtz.

Dates: 1953 August 3

Group leaders' meeting, August 4, 1952, 1952 August 7

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-55. Minutes of weekly group leader meeting discussing shops, visit by Paul Cusick, Remmington Rand, visitors, Dr. Lou Gold, Control Instrument Company, ferrlte research, Philco contract, and Scientific and Engineering Applications Group. Attending: Jay W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, N. H. Taylor.

Dates: 1952 August 7

Group leaders' meeting, August 10, 1953, 1953 August 11

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-114. Minutes of weekly group leader meeting discussing personnel estimate for fiscal 1954, research assistants, and magnetic-core memory for WWI. Present: J. W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, R. A. Nelson, N. H. Taylor, C. R. Wieser, and P. Youtz.

Dates: 1953 August 11

Group leaders' meeting, August 11, 1952, 1952 August 11

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-56. Minutes of weekly group leader meeting discussing assigned technicians, Philco contract, Dr. Lou Gold, test equipment, machine shop, plug-in units, crystal rectifiers, and Scientific and Engineering Applications Group. Attending: J. W. Forrester, C. W. Adams, D. R. Brown, S. H. Dodd, R. R. Everett, H. Fahnestock, N. H. Taylor.

Dates: 1952 August 11

Group leaders' meeting, August 16, 1954, 1954 August 18

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-162. Minutes of weekly group leader meeting discussing space, IBM, concurrence, ADES, liaison, new schedule for TM-20 revision, and typotron. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, A. P. Kramer, J. C. Proctor, N. H. Taylor, and C. R. Wieser.

Dates: 1954 August 18

Group leaders' meeting, August 17, 1953, 1953 August 18

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-116. Minutes of weekly group leader meeting discussing air conditioning for WWI, microfilm copies of WWI drawings, purchasing at IBM, personnel estimate for fiscal 1954, FSQ-7 installation in Lexington, space in Lexington, and travel authorization. Present: R. R. Everett, D. R. Brown. S. H. Dodd, R. A. Nelson, J. C. Proctor, N. H. Taylor, P. Youtz.

Dates: 1953 August 18

Group leaders' meeting, August 25, 1952, 1952 August 27

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-58. Minutes of weekly group leader meeting discussing intercom system for WWI, WWl installation, October meeting of Direction Systems Research Committee, October Meeting of the IRK Computers Committee, indoctrination program, and visit to Remmington Hand. Attending: Jay W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, C. R. Wieser, and P. Youtz.

Dates: 1952 August 27

Group leaders' meeting, August 30, 1954, 1954 August 31

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-164. Minutes of weekly group leader meeting discussing funds for maintenance of AN/FSQ-7(XD-1) and (XD-2), funds for direction centers, IRE West Coast Convention, Building 10 research program, courses for special students, security, selective service, and Division 6 components stockroom. Present: R. R. Everett, D. R. Brown, S. H. Dodd, A. P. Kromer, W. K. Linvill, J. C. Proctor, and C. R. Wleser.

Dates: 1954 August 31

Group leaders' meeting, August 31, 1953, 1953 August 31

 File — Multiple Containers
Identifier: 16
Scope and Contents

Project Whirlwind Limited Memo L-118. Minutes of weekly group leader meeting discussing reorganization of Group 65, FSQ-7 display, space for Group 62, personnel, tube shop, and Cape Cod display system. Present: D. R. Brown, S. H. Dodd, J. C. Proctor, N. H. Taylor, C. R. Wieser, P. Youtz.

Dates: 1953 August 31

Group leaders' meeting, December 6, 1954, 1954 December 8

 File — Multiple Containers
Identifier: 16
Scope and Contents Division 6 Limited Memo 6L-175. Minutes of weekly group leader meeting discussing meetings, maintenance contract for FSQ-7, Division 6 space, research assistants, magnetic-materials research, release of memory-core process, time schedules, Hughes' visit, digital data receivers and transmitters, ADES assistance, Christmas holiday, status of building design, acceptance tests for AN/FSQ-7 (XD-1), and projection system. Present: J. W. Forrester, D. R. Brown, S. H. Dodd, R. R. Everett, A. P....
Dates: 1954 December 8