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

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

Tektronix 7A26 Dual Trace Amplifier Plug In Unit #1

Tektronix 7A26 Dual Trace Amplifier Scope Plug In Unit Module

Tektronix 7A26 Dual Trace Amplifier Plug In Unit #9

Tektronix 7A26 Dual Trace Amplifier Plug In Unit #19

Tektronix 7A26 Dual Trace Amplifier Plug In Unit #10

Tektronix 7A26 Dual Trace Amplifier Plug In Unit #12