I don't know if this should be in seb rather than in sed, but here goes. I have this brushed motor from an old machinery with an integral reduction gear. The label has faded completely so that it's impossible to read the nameplate ratings. It was powered from a transformer that outputs 26.5V at no load, and judging from the orginal control board, it was apparently run by phase control at mains frequency with a pair of SCRs. The current limiting jumper was set at 3A. The transformer is rated for 90VA, secondary dc resistance is about 0.2 ohm and primary (230V) 12 ohms.
I'd like to try using the motor and the transformer with high-frequency PWM control, but if I rectify and filter the transformer output, the supply voltage will be substantially higher than the average in the original scheme (though of course no higher than the peak). Is this likely to cause any problems? Please ignore any other issues for the time being.