Tektronix 7A26 Dual Trace Amplifier Vertical Plug-in for 7000-series scop

Tektronix 7A26 Dual Trace Amplifier Scope Plug In Unit Module

Tektronix 7A24 Dual Trace Amplifier 7854 Oscilloscope Plug-In Module (nice)

Vtg Tektronix 7A26 Dual Trace Amplifier Plug In for 7000 Series #B2525651

Tektronix 7A26 Dual Trace Amplifier – For 7000 Series Scopes (SN B171918)

Vtg Tektronix 7A26 Dual Trace Amplifier Plug In for 7000 Series #B252654

Tektronix 7A18 Dual Trace Amplifier Plug In for 7000 Series Oscilloscope~

Tektronix 7S14 Dual Trace Delayed Sweep Sampler 7000 Series Oscilloscopes