S-3100
The Tektronix S-3100 is a family of automated test systems, introduced at WESCON in July 1967.
They use a package consisting of a 568 programmable readout oscilloscope, dual channel vertical sampling plug-ins (3S5/3S6), and delaying sweep time bases (3T5/3T6), plus a digital readout unit (230).
Link
Pictures
-
Photo from 1968 Catalog
-
Block Diagram