Tektronix 2236 100MHz Oscilloscope With Counter, Timer, and DMM - Grade D 145725131490 Manufacturer Carl Zeiss Model Number

Manufacturer Carl Zeiss Model Number Invertoscop SKU 19-65595 Ref 23-93096

Manufacturer Graham Field Model Number 410E SKU 19-66704 Ref 23-106077

but it will not read the disc

Manufacturer Tektronix Model Number TDS6604 SKU 19-34115 Ref 23-116816

Manufacturer Marantz Model Number SR4320/U1B SKU 19-51773 Ref 23-93897

Tektronix 2236 100MHz Oscilloscope With Counter, Timer, and DMM - Grade D 145725131490 Manufacturer Carl Zeiss Model NumberThis item is sold AS IS. No returns or exchanges are accepted. Condition For parts or not working Description This unit has been tested and the focus knob works but i is very noisy. Unit makes a high pitch sound when on. Cosmetically in fair poor condition showing moderate to heavier scuffs scratches blemishes from previous use, as well as unit missing handle, outer case is incorrect for model, yellowing to plastics. Includes Oscilloscope With