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MMD > Archives > October 1997 > 1997.10.03 > 04Prev  Next


Scratch-built Wurlitzer 125 Tracker Bar
By David Repanshek

As a builder of a scratch built Wurlitzer 125 band organ, I know first
hand the need to offset the bass drum and snare drum holes from the
notes.  I built my tracker bar from Rock Maple wood, drilling round holes.
It works perfectly for 7 years now.

Originally I built the tracker bar with all holes level, but no matter
what roll I played the snare and bass drum would play 1/2 second later.
I assumed distance and/or "lag time" was the cause of the 1/2 second
delay.  Putting the snare pneumatic within 6" of the tracker bar still
indicated a 1/2 second delay, confirming my thought that the music is
definitely punched with a delay in the bass and snare notes.

Well, back I went to the drill press and a new piece of maple.  I offset
the holes upward 1/16 of an inch and it works perfectly.  Every roll
I own taps a perfect beat with the music.

Dave Repanshek
Portsmouth, VA


(Message sent Fri 3 Oct 1997, 12:28:33 GMT, from time zone GMT-0400.)

Key Words in Subject:  125, Bar, Scratch-built, Tracker, Wurlitzer

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