Tektronix Oscilloscope Type 2B67 Time Base Plug-In Unit Parts Repair Untested.

TEKTRONIX TYPE 561A OSCILLOSCOPE - 2B67 TIME BASE - 3 LOT ORIGINAL KNOBS

NOS Tektronix Oscilloscope 7B85 Delaying Time Base Plugin, NOW TESTED Working

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

Tektronix Type RM564 Oscilloscope With Type 3A3 Amp and Type 2B67 Time Base

Heathkit Oscilloscope OS-2 European Plug Untested

Tektronix Type H WIDE-BAND CALIBRATED PREAMP Plug-in Unit, Untested

Vintage Tektronix 434 Analog Storage 60Watt Oscilloscope parts repair untested