Quoted from smokey_789:Put shakers and subs in 'em
Sacrilege
Without bells and chimes it's not an EM.
The Space Mission I just bought had some kind of 1970's mickey mouse circuit board to make what was supposed to sound like space sounds, but really sounded like a cat in a blender. If the same thing was made today I realize it would sound incredible, but if I wanted those sounds I'd buy a DMD.
Just bought a chime unit of Ebay and that board and speaker is headed for the parts locker.
I'm sure someone else might want it for their Space Mission because it is a part of history and was an early attempt at cool sounds.