I'v just got my rebuilt and upgraded STUDER B67.
It's like it was new apart from some patina on the front panel. New teak sides, all bearings is new, and other mechanical parts, the circuits and components in the signal path and current parts are new.
New original Studer VU-meters. The head stack is renovated by a company in Florida and is as good as new, if not better.
I'v compared it to other tape recorders and this is sounding very well and works perfectly.
It may move my Lyrec Frida from the throne, this B67 just sounds better.