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In Reply to: RE: The theory behind the idea is sound... posted by AbeCollins on May 29, 2012 at 13:22:35
But the SDS has additional features to control the speed at 45RPM plus the stylus timer thing.
The SDS would be optimized to work with VPI motors and I'm sure they tested it to make it generate the most motor friendly waveform possible. The other device's point is to produce a sinewave power waveform.
Its just the difference between the point of the devices and the convenience of the 45RPM thing.
Ed
We don't shush around here!
Life is analog...digital is just samples thereof
Follow Ups:
Thanks for the replies. I even understood most of them, which is great!So a UPS isn't ideal but there are other possibilities such as the PS Audio device mentioned and the turntable speed controllers listed.
Regarding turntable speed controllers, does anyone have any experience of the Heed Orbit 2? It is a relatively straightforward device that even I could fit (it only requires the replacement of the plug on your turntable), and claims to output a steady 230v AC (I am in the UK) and offer switchable 33/45rpm by altering the frequency between 50Hz and 67.5Hz. The PS Audio is available in the UK but I don't think the increments of frequency change would allow it to do 45rpm (unless I have misunderstood how it works), though this is not too much of an issue as 45rpm is achieved on my turntable by the changing of belt on pulley. The VPI SDS looks interesting but I don't think it would suit my turntable as it only outputs 115v.
How about something like this:
Edits: 05/30/12
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