[Jukebox-list] RE: And another oldie...

[Wesley Dean]

    Bob, you are right. The action of the pneumatic servos are more 
interesting to watch than solenoids and they are much quieter. It is easier 
to build these servos than to wind coils. All you need is some good wood, 
rubberized cloth and some good glue. A good source for tubing is your 
friendly surgical supply house. It would be nice if the valve body were made 
of clear acrylic. And the prime mover can be replaced with a good vacuum 
cleaner. It is best to place it in the basement to control the extra noise. 
Think negative pressure.Wes

 Yeah, I knew about the player piano history, but I saw the big motor on
 the floor of the Audiophone and thought that was the power source (which,
 in a way, it was).  Player pianos run on positive pressure, though,
 don't they?  Anyway, I bet that Seeburg is a hoot to watch it go through
 the motions!
Bob