Tektronix Oscilloscope Plugin Module SI-5010 Programmable Scanner

Tektronix 016-0606-00, TDR X-Y Output Module, for use with 1502 and 1503 TDRs

Vintage Tektronix AM-6565/U Amplifier Plug In Module Great Working Condition

Tektronix 7A18N Dual Trace Amplifier Plug-in Module for Scope (T-116)

Tektronix 7A13 Differential Comparator 7000 Oscilloscope Plug-In Module (nice)

Tektronix PG501 50Mhz Pulse generator. Guaranteed

Tektronix 7B53A Dual Time Base Oscilloscope Plug-In Module For Parts (T-105)

Tektronix 7A16A 225 MHz Vertical Amplifier - 7000 Series Module