I picked up a Philips CD 100 today, the very first CD player from Philips released in 1982.
It was sold as in good cosmetic condition but non-working.
I would say it's doesn't look great, very scratched up and dirty, but it still mostly works after 43 years. I'm not surprised, the CDM-0 mechanism is indestructible.
The right channel is way down but faintly audible. That's almost certainly the muting relay for which I have spares.
A broadcast peak meter showing normal levels on the left channel, but almost nothing in the right channel.
A silver top loading CD player currently playing a CD. To the right, there's a CD compartment with two rows of LEDs, the first one showing the tracks to be played and the second one displaying the currently playing track. On the left, there's an angled control panel with the controls of early Philips CD players: "Play/Next", "Pause", "Stop", "Select", "Store", "Cancel", "Repeat", "Rewind", "Forward".
It's interesting to note that these early CD players had no way to skip to the previous track, you could only go forward. With the select and cancel buttons you could prevent certain tracks from playing, but not alter the order in which the tracks play.