For a vintage 60s phonograph.Will a 115V motor work as a replacement for my original 90V motor?They are both 60Hz.It's because I can't find an exact replacement and this is the closest I have been able to find online.I guess what I want to know is: Is the voltage stamped to the side of my broken motor the necessary voltage required to run it or is it the max it can take so it doesn't get damaged?Thanks.
If the motor is stamped 90 volts, this is normally telling you the maximum voltage (also, in most cases for an AC motor you cant go too much below the rating either). If you measure 90 volts on the wires going to the motor (and assuming the phonograph runs from 120 volt wall socket), they have used a transformer to reduce the voltage for some reason. If you connect a 115 volt motor the the 90 volt lines, it will probably work, I dont see any harm in trying it. If the motor is not strong enough with 90 volts, you could just connect it to the 120 volts that supplies the phonograph and not worry about the 90 volt connection.
