Tektronix DC 509 Universal Counter/Timer

Tektronix Oscilloscope Plugin Module SI-5010 Programmable Scanner

Tektronix DC5010 Frequency Counter 350MHz 25mV sensitivity FULLY TESTED GPIB

Tektronix DC503A 125Mhz2 channel Frequency Counter/Timer Plug In

Tektronix PG 506 Calibration Generator

Tektronix DM501 Digital Multimeter

(6) Tektronix PS5004 Precision Power Supply with (1) TM 5006 Mainframe

Tektronix DC 505A Universal Counter Timer Module 225MHz For TM500 Series TESTED