Christian Fandt <cfandt(a)netsync.net> replied to my post about an
all-tube CD-player:
And including a gaseous tube laser Eric? Remember,
completely Hollow State,
not Solid State! :-)
Of course. It would use a HeNe laser, just like the early laser video
disc players.
The part I haven't figured out is the photodetector. Even those early LD
players used a phototransistor for the detector.