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Detector and control circuit - Proportional Control System / Fred Waldhauer]. — July 26, 1966. — 1 technical drawing (1 sheet): pencil on photocopyed blueprint; 28 X 43 cm. — Cross section and elevation of the "Proportional Control System". — Initialed "FDW". — The Daniel Langlois Foundation for Art, Science, and Technology, 9 Evenings: Theatre and Engineering fonds.
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Fonds/Collections : 9 Evenings - This document is included in the file
Proportional Control System for the festival of art and engineering, 1966.