2770107. TEKTRONIX TM 504 with AM503, PS503A and SG 503A, i.a. sine generator.
Tektronix AM 503 probe amplifier, Tektronix PS 503 A triple power supply, 250 MHz sine generator. Length 48, width 31.5, height 13.5 cm.
Normal wear and tear. Not functionally tested.