Tektronix Type D Plug In Unit High Gain Works

Tektronix Type W SAMPLING Unit For 500 Series Oscilloscope

Tektronix Type CA Dual Trace Calibrated Preamp Plug-In Unit

Tektronix Type L Plug-in - Fast Rise Calib Preamp O Scope 500 Series Untested!

Tektronix Type 3B3 Plug-in - Time Base for Oscilloscope 564 w/ Manual

Tektronix Type W SAMPLING Unit Oscilloscope

Tektronix Type 1A2 Plug-in - Dual Trace for Oscilloscope 500 Series

Tektronix 1A5 Differential Amplifier Plugin for 500 Series Oscilloscope AS-IS