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Eta Kappa Nu Initiation, 1947
Initiates of the engineering honor society Eta Kappa Nu at the University of Missouri in 1947. Warfield is in the back row, third from the right.
Outstanding Contribution Award, 1977
Warfield was given the 1977 Outstanding Contribution Award by the Systems, Man, and Cybernetics Society, part of the Institute of Electrical and Electronics Engineers.
Electrical Engineering Exam, 1975
This Fall 1975 test is for an advanced course in Electrical Engineering at the University of Virginia, taught by Warfield.
Patent for a Double Bridge Network for Producing Signals Having a Modulation Envelope Phase Difference
This patent, Warfield's second, was also known as a "digital goniometer."
Patent for a Digital Squelch System
Warfield's second patent was for a "digital squelch system."
Doctor of Philosophy, 1952
Warfield was awarded his PhD by Purdue University in 1952.
Certificate: Army Specialized Training Program
Private Warfield received a certificate upon completion of a series of courses in Electrical Engineering at Penn State taken from December 1944 through December 1945.
Offer Letter from Pennsylvania State College
Warfield returned to Penn State in 1949 as an Instructor in Electrical Engineering. This offer letter lays out the specifics of salary, duties, and the possibility of tenure.
PENNSTAC: Fast Memory Switch Wiring Diagram
This one page excerpt is from a large binder of computing materials related to the PENNSTAC computer project at Penn State in the 1950's. Note that the diagram has been approved and initialed by Warfield.
Return to Penn State
In 1949, Warfield returned to Penn State College, this time as a member of the faculty, teaching Electrical Engineering. Here, he poses by the side of the road with an automobile.