3 Jun
2003
3 Jun
'03
11:24 a.m.
Hi
One could buy a new pulley and add some additional capacitance
IIRC, the coupling between the motor and the rest of the mechnism
consists of a pair of helically-cut gears on the end of the motor (one on
the motor spindle, the other on a separate spindle). The driven gear is
moulded integrally with a sprocket for a toothed belt that goes to a
larger sprovket on the transmitter shaft.
The gears are almost certainly custom parts and would not be easy to get
now (unless you know of a souce of Model 33 parts...). Making them would
also be non-trivial, I think, at least in most home workshops.
to the motors capacitor and it might work well at
50Hz. I don't
think I'd run it too long without the capacitor increase. They
run the motor hot at 60Hz. It'd be even hotter at 50.
I thought that at least some of the Model 33 motors were used on both 50
and 60 Hz, with just a gearing change. I know that UK Model 33s have 115V
motors and an autotransformer in the stand -- if there was a 50Hz motor,
I would have thought it would have been wound for 230V.
-tony