Tektronix 5B12N dual time base for 5000-series scopes

TEKTRONIX 5B12N DUAL TIME BASE POSITION / LEVEL A&B KNOB

Tektronix 5B12N Dual Time Base Module

Tektronix 7B53A 100 MHz Dual Time Base Plug-In Module 7000 Series Oscilloscopes

Tektronix 7B53AN Plug-In Module Dual Time Base for 7000 Series Oscilloscopes

Tested Tektronix 7B92A Dual Time Base Oscilloscope Plug-In 7000 Oscilloscope T55

PARTS! TEKTRONIX model 7B53A Dual Time Base Main Triggering Amplifier Module

Tektronix 7B53A Dual Time Base Oscilloscope Plug-In Module For Parts (T-101)