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MMD > Archives > June 2015 > 2015.06.08 > 05Prev  Next


Wurlitzer Band Organ Rewind & Re-play
By Julie Porter

[ Bill Chapman wrote in 150607 MMDigest:

> A friend has problems with Wurlitzer 146 and Wurlitzer 153 in that
> both will not dependably turn off at the end of a tune or end
> of a roll.

Bill, it is a simple lock-and-cancel system.  The coin trip [motor
stop] and the play button pallet are the "lock" and rewind the "cancel".
Check the bleeds on the lock/cancel valves.

Wurlitzer used two valve designs, a 4-in-one design and a unit block
one.  In both there is a cutout pouch (part of the lock); over time
this leather stretches and there is not enough bleed to reset it.

Patent diagrams showing this are posted here in the MMD technical
section.  There is a Vestal Press reprint showing the unit block
version.  I took apart my 4-in-1 valve version and made a CAD/CAM
drawing of it to figure out how it worked.

Julie Porter

 [ I can't find the patent diagram that Julie mentions.  When one
 [ becomes available in the MMD Archives I'll publish an announcement
 [ and a link.  -- Robbie


(Message sent Mon 8 Jun 2015, 20:49:24 GMT, from time zone GMT-0700.)

Key Words in Subject:  Band, Organ, Re-play, Rewind, Wurlitzer

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