Hi Bruce,
It's a good thought as there quite a few old folks who like VCR and Audio cassette machines, as they can easily remember how work them. Had several audio cassettes in recently and quickly discovered that motors and flat belts are hen's teeth, so have to mend old motors when they grind to a stop.
Thought of you today when a 'EnvirOmower ECO500' Battery Mower came in for a mend, as it wouldn't go. Fixed it then checked on line, where everyone knows that the roller microswitch in the handle falls out. The handle gets special praise, as when all the screws are removed, springs and things fly most everywhere, and it's really difficult to reassemble, as some bits go to the top, others to the bottom, and no securing screws for the LED display panel nor the microswitch - Bit of a fiddle, but a quiet day - Enjoyed Aussie engineering - Chris.