Seeburg used two different types of repeating mechanisms in their
xylophone.  One of these had a little metal finger on the bottom of
the pneumatic that opened a pallet valve.  Remove the finger and no
more repeating.

The other style used a slide valve.  I think the Edgerton KT Special
used the little metal finger on the bottom of the xylophone.  You could
keep the machine "original" by removing the finger.  The xylophone will
leak -- but then, it does anyway.

Don Teach, Shreveport Music Co
1610 E. Bert Kouns, Shreveport,  LA  71105
dat-smc@juno.com