Tektronix Type 82 Dual-Trace Plug-In Oscilloscope Unit – Vintage Electronics

Tektronix Type L Plug-In Unit Oscilloscope Vertical Amplifier Module B.75

Tektronix TDS 524A Color Two Channel Digitizing Oscilloscope 500 MHz 500MS/s

Tektronix 5A18N Dual-Trace Amplifier Plug-In Module for 5000 Series Oscilloscope

TEKTRONIX Flexible 15X2 extender partial kit IN KIT FORM

Tektronix Type 3A6 Dual-Trace Amplifier Oscilloscope Plug-In Module B.29

Tektronix 5A18N Dual Trace Amplifier Module for 5100 Series Oscilloscope

Tektronix 7A18 Dual Trace Amplifier 75 MHz Dual-Trace Vertical Amplifier Plug-In