From the home of a professional sound technician that worked in TV and radio in the 1950s, 60s, and 70s. It has a full compliment of tubes in the amp section, and the speaker for these units was apparently supplied by JBL. Please see pics, you will receive exactly what is shown. This unit has not been plugged in, powered on, or tested in anyway. It is ready to go to a proper technician that will test and power it up properly. Unit appears to be in very clean condition – abundant photos are provided. I was unable to determine whether this unit is a 620 or 622. There’s no identification tag on the unit, and it does not come with the original top cover of the suitcase cabinet. From what I read the 620 and 622 were virtually identical with just a few minor differences. The amp section, a 6V6 10 watt mono, was apparently identical in each model.