restorer-john
Grand Contributor
From a lovely Onkyo
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how many poles does this DD turntable motor have? (not a test)
- Thread starter restorer-john
- Start date
30? Not having serviced many direct drive turntables I'm guessing they are pretty reliable and so I've never seen many other than Technics but yeah 30 is my total guess. Looks like a wonderful handmade motor assembly. 
DSJR
Major Contributor
I agree with Doodski regarding how much effort must have gone into winding that. No idea on pole numbers though...
I googled turntable drive and motors and upon a skim and scan I found little info regarding poles in turntable motors. There where 4 pole motors and they all had 4 appendages and the 2 pole had 2 appendages. @restorer-john is just keeping us in suspense.
MakeMineVinyl
Major Contributor
I don't think there are any Polish people in that turntable. So my answer is zero.
180
I am not a technical person. But I think there are nine poles. The multiple green iron core protruding outside have coils wound around in alternate pairs of cores is just to smooth out cogging (?) . Besides the outermost green varnished coils looks distinct so I counted nine ....
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restorer-john
Grand Contributor
- Thread Starter
- #11
So, there's 60 coils on the motor. But, they aren't all used for drive. Some are used for feedback.
Motor schematic:
As I didn't count the actual magnet poles on the rotor, before reassembling it, I don't think there is an straightforward answer.
But it is a lovely motor and a ton of effort went into winding it, that's for sure.
Specs on the turntable were pretty impressive too. The entire chassis is die-cast alloy and it even has a motorized lid.
Motor schematic:
As I didn't count the actual magnet poles on the rotor, before reassembling it, I don't think there is an straightforward answer.
But it is a lovely motor and a ton of effort went into winding it, that's for sure.
Specs on the turntable were pretty impressive too. The entire chassis is die-cast alloy and it even has a motorized lid.
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