Yes it does...

Vinyl Asylum

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In Reply to: The motor drive has an absolute phase switch? posted by reuben on December 4, 2005 at 05:34:47:

I think it's in reference to me questioning how such a thing can work.
I still can't work out how a single continuous sine wave has phase, so I can't work out how you can switch it.
The only explanation I can see is that the drive itself has one side as the ground or neutral reference and the other side "live". Switching them over would change which end of the motor winding was "ground" and which was "live". I suppose this might make a difference to the field emanating from the motor, which might well be audible. If that's the case you can do the same thing with any motor by changing over the motor leads.
This is not, however, a change of phase, it's a change of drive polarity with respect to the motor windings. I guess "phase" sounds sexier so it's just another case of marketing coming before accuracy.
Anyone who knows anything more on how it works please chime in.
Mark Kelly

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Follow Ups Full Thread

Topic - Walker Audio Precision Motor Drive/VPI Scout first impressions.. - kenster 21:56:49 12/03/05 (19)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - Ray-o-Stat 06:55:52 12/04/05 (5)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - kenster 08:25:32 12/04/05 (0)

I agree with the dedicated lines to the listening room - trav 08:01:48 12/04/05 (3)

When I had my listening room built, I had 4 dedicated circuits put in, - Muzikmike 10:23:29 12/04/05 (2)

So, I write all that and forget to say how good everything sounds! - Muzikmike 10:31:27 12/04/05 (1)

Re: So, I write all that and forget to say how good everything sounds! - trav 12:48:11 12/04/05 (0)

The motor drive has an absolute phase switch? - reuben 05:34:47 12/04/05 (1)

Yes it does... - Mark Kelly 16:33:16 12/04/05 (0)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - tao 23:14:21 12/03/05 (8)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - Rushton 08:13:15 12/04/05 (6)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - Thanks 10:24:05 12/04/05 (5)

hrx motor - sberger 11:47:52 12/04/05 (3)

Re: hrx motor - tao 13:58:07 12/04/05 (2)

Re: hrx motor - sberger 19:47:36 12/05/05 (0)

Re: hrx motor - tao 14:04:19 12/04/05 (0)

The thanks in the username should of course be in the subject line - tao 10:25:49 12/04/05 (0)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - kenster 23:40:58 12/03/05 (0)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - trav 22:11:42 12/03/05 (1)

Re: Walker Audio Precision Motor Drive/VPI Scout first impressions.. - kenster 22:47:20 12/03/05 (0)

Follow Ups

Yes it does... - Mark Kelly 16:33:16 12/04/05 (0)

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