Can Sony TC-377 reel to reel tape deck with 60 cycle power be used with 50 cycle power


I have a Sony TC-377 reel to reel tape deck. It uses 110 volt power with 60 cycles. I would like to use it overseas where there is 220 volt power with 50 cycles. I purchsed a step down power converter which would convert 220 power to 110. Can this reel to reel tape be used in 50 cycles power? I would be converting lots of old 7 inch reel music into digital. Will this unit work with 50 cycles?
joedow
I’d want to consult the service Manual first. That is the true, authoritative source of information. 
I have one 50 hz pulley came with other Sony TC-377. The audio repair man told me that he would use this pulley on the first machine I plan to take overseas and replace capacitor so it would work. In other words, Sony TC-377 will be fitted with 50 hz pulley and would use 110 volt power stepped down from 220 volt. Does this sound ok? Thanks for your response.