Tektronix 7B71 Delaying Time Base Plug In

Tektronix 7B71 Delaying Time Base - for 7000 Series Oscilloscopes

Tektronix 7A26 Dual Trace Amp Vertical Plug-in for 7000-series scope (#129)

Tektronix 7B71 delaying time base SN B205000 and up

Tektronix 7A26 Oscilloscope Plug In Amplifier Module s/n B191331

Tektronix Model 7B71 Delaying Time Base Instruction Manual

Tektronix 7B85 Delaying Time Base Plug-in