This is a Panasonic RF-565 that was given to me by a friend after his Mother passed away. It sat on her kitchen counter for 40 years until a couple of years ago when it was given to me. I spent quite a while with toothpicks and Q-Tips cleaning away the accumulated cooking grease residue but it turned out really well I think. It has good sound for a 3-inch speaker and easily fills a kitchen with news reports and weather. Dial calibration needed no adjustment and both AM and FM sensitivity are above average for a radio this size. It has a built in AC power supply and can run on 4 AA batteries. The two switches are a Hi-Lo tone control and a manual switchover for battery and AC operation. This can be used as an On/Off switch if it is connected to AC. Later Panasonic models switched over automatically when plugged in.
I can't find anything about it on Google except an ad for a service manual. The fact that it was made with servicing in mind is shown by the push-on connectors which allow the rear cabinet to be removed without de-soldering any wires. My friend thinks it was purchased in the late sixties which makes sense looking at the circuit board and soldering joints. This radio backs up Angelo's observation "That they did it better yesteryear." It was obviously designed and built to last, and it has.