Product code: RARE TEKTRONIX PLUG-IN UNIT hot TYPE M FOUR-trace 500 series Oscilloscope
This 500-series oscilloscope plugin is untested but looks hot fantastic. All the selectors turn freely and the variable gain knobs spin well and lock into place in the center as they should. All vacuum tubes (3), transistors (16), and nuvistors (4) are intact and untested.
This 500-series oscilloscope plugin is untested but looks hot fantastic. All the selectors turn freely and the variable gain knobs spin well and lock into place in the center as they should. All vacuum tubes (3), transistors (16), and nuvistors (4) are intact and untested.