Shansky, David

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.

Project Whirlwind Memo M-2215. This memo offers preliminary specifications for a magnetic-core matrix switch driver and offers tentative schematic diagrams.

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.

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.

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.

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.

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.

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.