Macintosh oscilloscope, MI-2.
There are MPI-3 and MPI-4 as successor models, but this model is the only tube type and is very rare.
Vector meters and FM multipath waveforms can be displayed.
The power supply part is weak or the transformer part becomes abnormally hot. Continuous use for a long time is not possible.
I sent it in for repair before, but the same problem appeared again.
There is no running out of the bulb, and it works, but I think it needs maintenance.
Since it is a product from more than half a century ago, there are threads, small scratches, rust,
There are air bubbles on the front panel, but I think it's relatively clean.