公开(公告)号：DE1010990B

公开(公告)日：1957-06-27

申请号：DEI0011275

申请日：1956-02-09

Applicant: IBM DEUTSCHLAND

Inventor： GARWIN RICHARD LAWRENCE ,  WALKER ROBERT MURELL ,  ANDERSON ARTHUR GEORGE ,  HORTON JOHN WESLEY

IPC: G11C11/16

Abstract: 817,475. Reactance valve circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 8, 1956 [Feb. 10, 1955], No. 3940/56. Class 40 (5). [Also in Group XIX] In a circuit for decreasing the frequency of a 30 mc/s signal steadily by 4 kc/s per milli-second over a period of 3 milli-seconds, a variable reactance triode 63 forms part of the tank circuit of a Clapp oscillator, the output of which is fed to three doubling stages 50, 51, 52. Oscillation is initiated by a negative signal on a control lead 57, and as a result conduction in the triode is decreased and the frequency of the oscillator lowered. The circuit is described as part of a spin-echo storage system (.see Group XIX).

公开(公告)号：DE961103C

公开(公告)日：1957-04-04

申请号：DEI0010520

申请日：1955-08-07

Applicant: IBM DEUTSCHLAND

Inventor： ANDERSON ARTHUR GEORGE ,  HORTON PAUL VERNON ,  WALKER ROBERT MURELL

IPC: G11C11/16