Raffel, J. I. (Jack I.)
Found in 8 Collections and/or Records:
A Large Planar Switch For Register Selection In A Magnetic-core Memory, 1953 August 31
Project Whirlwind Memo M-2384. Master's Thesis Research Proposal on a Large Planar Switch for Register Selection in a Magnetic-core Memory. The purpose of this thesis is to evaluate a proposed selection scheme for a magnetic-core memory and to compare it with that presently used at the MIT Digital Computer Laboratory.
Core Memory Using External Bit Selection, 1954 March 18
Experiments on a three-core cell for high-speed memories, approximately 1955–1959
Proposal for Reducing the Number of Tubes Used in Driving a Magnetic Matrix Switch, 1953 July 9
MIT DIC 6889. Project Whirlwind Memo M-2291. A scheme is outlined which eliminates roughly half the bias drivers used in present models of the magnetic matrix switch. It calls for an increase of about 50% in the number of wires passing through a core in the switch.
Sensing Winding Geometry, 1953 August 6
MIT DIC 6889. Project Whirlwind Memo M-2351. The difference between the minimum wanted output (a system ONE) and the maximum unwanted output (a system ZERO) is the same for a winding which threads the cores so that each half of the memory plane has a different polarity as it is for one in which all the outputs add.