Robbie made a comment that 120V AC when rectified should produce about
108V DC.  I disagree.  It will produce about 170V DC.  The 120V is the
RMS (root 2/2) value of the AC waveform.  When rectified and filtered,
you will get the peak value.  This could damage the motor so I wouldn't
try it.

Benjamin Haass

 [ My statement stands if a bridge rectifier of four diodes is used
 [ alone, with no other components.  A ripple filter following the
 [ rectifier is not needed since the inductance of the motor windings
 [ significantly reduces the 120 Hz ripple current.  Compact silicon
 [ bridge rectifier modules, rated for 25 amperes, used to be sold
 [ by Motorola and other semiconductor vendors for less than $10.
 [ -- Robbie