Found in 8 Collections and/or Records:
Biweekly Progress Report on FSQ-7 Memories, 1955 July 11
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.
Magnetic-Core Matrix Switch Driver (X & Y Plane Driver). PB 18, 1953 June 5
Project Whirlwind Memo M-2215. This memo offers preliminary specifications for a magnetic-core matrix switch driver and offers tentative schematic diagrams.
Proposed Changes in FSQ-7 Memory, 1954 July 13
Project Whirlwind Memo M-2904. A significant reduction of the cathode count coupled with an increase in operating speed of the FSQ-7 Memory banks can be achieved by a redesign of some of the sections of Memory. In order of increasing difficulty these are: the Digit Plan Drivers, the Sense Amplifiers, and the address selection system. Approximately 6 man-months of engineering time would be required to effect these changes.
Proposed Memory Address Selection System, 1954 May 26
MIT DIC 6889. Project Whirlwind Memo M-2834. Increased memory in the use of cathodes is made possible by multi-level memory address selection and improved circuit designs.
X and Y Plane Drivers for WWII Memory, 1953 February 26
Project Whirlwind Memo M-1869. A number of different schemes are being considered as possible candidates for the circuitry to be employed in the X-Y plane current drivers in WWII. Briefly, they may be classified as to the type of selection mechanism involved, the devise used to secure the necessary degree of current regulation and the method of connecting into the memory.
XD-I Digit-Plane Driver, 1954 May 28
Project Whirlwind Memo M-2842. A self-balancing bridge is utilized in conjunction with an "and" and an "or" gate input to satisfy the wave form and gating specifications on the driver for a magnetic core memory digit plane winding.
Z Plane Driver, 1953 May 7
Project Whirlwind Memo M-2144. This memo outlines the specifications of the Z plane driver, estimates the total number of drivers required, and offers a tentative schematic diagram.
Z-Plane Driver (WWII Memory Digit Plane), 1953 March 27
Project Whirlwind Memo M-1936. Memorandum on planning for a memory address selection scheme, the Z-plane driver, and the Whirlwind II memory digit plane.