i have a transformer for the voltage
the motor states its 50-60 cycles will this run the same speed at 110 on 50hz
The rotational speed depends absolutely on the frequency. Athough it will run on either 50 or 60 hz the speed will be different on each.
Its a turntable from a quick google search. Does it come with "control electronics" that power the motor from a quartz reference and high voltage amplifier ? The pictures I saw have a small box at the side that looks as though it might. That makes it independent of the mains frequency. Or a different sized pulley for 50 or 60 hz use if run of mains directly.
Its a turntable from a quick google search. Does it come with "control electronics" that power the motor from a quartz reference and high voltage amplifier ? The pictures I saw have a small box at the side that looks as though it might. That makes it independent of the mains frequency. Or a different sized pulley for 50 or 60 hz use if run of mains directly.
An externally hosted image should be here but it was not working when we last tested it.
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The speed of that motor is locked to the mains. So if the turntable was designed to run on 60 hz it will not work on 50 hz. It would be slow.
(The motor itself will run on a wide range of frequencies but that is no good to you if the turntable drive system is built specifically for just one set frequency)
(The motor itself will run on a wide range of frequencies but that is no good to you if the turntable drive system is built specifically for just one set frequency)
Maths isn't my strong point
You would need to know the rotational speed of the motor when its running on the frequency the turntable is designed to work on. Then work out how much slower (if going from 60 to 50hz) or faster (50 to 60hz) its going to run. Thats just a percentage ratio. Then you would have to work out the "gear ratio" of the motor pulley to the platter and recalculate a new pulley size.
Or... run the motor from a dedicated electronic quartz locked supply. I don't know if you can get kits for those but it wouldn't surprise me. Worth looking into I would say.
You would need to know the rotational speed of the motor when its running on the frequency the turntable is designed to work on. Then work out how much slower (if going from 60 to 50hz) or faster (50 to 60hz) its going to run. Thats just a percentage ratio. Then you would have to work out the "gear ratio" of the motor pulley to the platter and recalculate a new pulley size.
Or... run the motor from a dedicated electronic quartz locked supply. I don't know if you can get kits for those but it wouldn't surprise me. Worth looking into I would say.
On the motor you mean. Well it will run on either. It will run on 40 hz and 70 hz too but all will give an incorrect speed for a turntable apart from the one frequency the motor pulley is designed for.
Its the same sort of motor as in an old clock. If you used it on the wrong frequency it would work but the clock would either gain or lose.
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