S-3130
The Tektronix S-3130 and its variants S-3131 and S-3132 were automatic measurement systems from the S-3100 family for device characterization and testing.
The S-3130 included an R568 oscilloscope with 3S6/3T6 sampling plugins, a pair of S-3 sampling heads, two probe choppers, an R240 program control unit, R250 auxiliary program unit, R116 programmable pulse generator, four programmable power supplies (one ±80 V, three ±40 V) a disc memory (not in 3131) and a paper tape reader (not in 3132). The instruments were mounted in a twin 19" rack with an operator table on the side.