Ampico B Music Roll Drive Motor
By Donald Barton
Does the different electrical current in England affect the speed of
the electric roll drive motor in an Ampico B?
Don Barton - Barton Player Piano Co.
[ The roll speed is determined solely by its fly-weight governor and
[ the setting of the Tempo lever. A "universal" series-connected motor
[ is employed, therefore it can be operated on mains current from D.C.
[ to 60 Hz. The taps of the adjustable power resistor in the shielded
[ metal box, and the value of the smaller governor resistor that
[ protects the points, should be adjusted per the procedure given at
[ http://www.mmdigest.com/Gallery/Tech/Ampico/spoolmotor.htm -- Robbie
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(Message sent Tue 24 Jan 2012, 00:14:36 GMT, from time zone GMT-0500.) |
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