>[ Matthew Caulfield wrote about this mechanism in 070708 MMDigest:
>[ "It was 100% non-pneumatic, except of course for the small pneumatic
>[ motor that brought the belt-driven ratchet wheel into play to fling
>[ the drum beaters against the drum head."

Pictures of this mechanism can be seen here:

  http://haskey.com/johnh/organ/w125/dcp_3132_jpg.html 
  http://haskey.com/johnh/organ/w125/dcp_3131_jpg.html 

This Wurlitzer 125 is owned by Craig Williams.

John Haskey