Tektronix 3A7 Differential Comparator Oscilloscope Plug-In Module B.189

Tektronix 3A6 Dual Trace Amplifier Oscilloscope Plug-In Module Vintage B.59

1ff Tektronix Oscilloscope 7B15 Delaying Time Base Plug In Module

TEKTRONIX TYPE 561A Oscilloscope/3B1 TIME BASE/3A1 DUAL TRACE AMP Works On CART

Tektronix 7S11 Sampling Unit Plug-In Module Vintage Oscilloscope UNTESTED B.2

Tektronix 3T2 Oscilloscope Plug-In Random Sampling Sweep Vintage Module B.25

Tektronix Type 3A3 Differential Amplifier Dual Channel Vintage Scope Module B.63

Tektronix Type 80 Vertical Amplifier Plug-In Unit Vintage Oscilloscope Mod B.62