[ Andy LaTorre wrote in 050201 MMDigest:


>> I don't really want to get into detubing and pallet magnets.
>> Is there not a way to do this similar to the PowerRoll concept?


First, has the owner talked to Stinson?  They provide the MIDI option
with all their new organs and might be able to retrofit easily, though
at a price.

I assume you don't want to build something like my MIDI interface
described in the Carousel Association (COAA Journal), basically a board
with pallet valves that tee into the existing tracker tubing.

The neatest solution would be the Gerety-Chase valve blocks, which are
very compact and easy to splice into the existing tubing.

The PowerRoll is built for the player piano 9/inch scale, and I suspect
would be very costly to re-engineer for the organ tracker bar.

Mike Knudsen

 [ A PowerRoll unit was tested at a European style orchestrion that
 [ was temporarily fitted with a 9/inch tracker bar.  The results were
 [ marginal, apparently because its internal air passages are too small.
 [ -- Robbie