Artifact Details Title Oscilloscope Catalog Number 102646043 Type Physical object Description Object consists of oscilloscope, dual-trace amplifier, time base mounted together in one unit. In addition, loose but part of the object are 5 probes, 1 display cover, and Tektronix dust cover for unidentified object. Manufacturer Tektronix, Inc. Place Manufactured Portland, Or., U.S. Identifying Numbers Model number 3A1 dual-trace amplifier Model number 3B1 time base Model number 561A oscilloscope Serial number 002339 time base Serial number 004258 dual-trace amplifier Serial number 009265 oscilloscope Dimensions 14 1/4 x 10 x 20 1/2 in. Category Test equipment Related Records 102633697 Dual-Trace Amplifier 102633695Sampling Dual-Trace 102633696 Sampling Sweep