Tektronix 5A20N Differential Amplifier, plugin fits the 5000-series mainframes

Tektronix 013-0077-00 Plug In Extension For 647 Oscilloscope New in Plastic

Tektronix 5A15N Amplifier, Used

Black Instrument Control Knobs with White Marker 1/4" Shaft Tektronix

Tektronix 366-1286-03 Pull Tab for TM500 Series Plug-ins NOS Pack of 14

Tektronix 3 PCs Plug-In Attenuators, 7000 Series Oscilloscope parts 307-1012-00

One Tektronix 386-3671-00 Plug In Support Alignment Guide slotted

Vintage Tektronix Oscilloscope Plug In Module ~ 11A34V Four Channel Video Amp