Electronics: Instruments, devices, components, 1967-1983

(293B) Diagrams, charts, drawings, components, for instrument, April 5, 1966; (556BC) Electronic instrument, January 9, 1967; (718) Electronics, barometer part, December 20, 1968; (831B) Instruments, electronic boxes, inside and out, August 20, 1968; (1026B) 1) Electronic rack, 2) Pyranometer, December 9, 1969; (2679) Electronic hardware and power supply being packed for shipping, November 18, 1974; (6046) Electronics package, hydrogen peroxide package, August 10, 1983.