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In Reply to: RE: SOTA Turntables Pivot to Spindle posted by jupiterboy on May 19, 2015 at 09:53:02
The Rega alignment is way off any of the classic alignments giving an inner null of 57.2mm combined with an outer null of 120.4mm.
It looks to me like SOTA knew exactly what they were doing in resetting the pivot/spindle distance to 219.5mm. The offset shifts to 23.2degrees and the overhang is 17.48, so the cartridge SHOULD look skewed with respect to the headshell if that is what your templates are telling you.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
Follow Ups:
but I am wondering if all their tables are like this.
I will pick up a new protractor soon and try the DIN (57.5 mm) inner groove radius, so those numbers will be a bit different.
It looks like Rega were probably aiming for the Stevenson alignment, but got it wrong! If you had 222mm pivot/spindle, and made the overhang just over 0.4mm extra over the design value to make the effective length 237.41 mm they would have been there with a very good alignment.
If you play 7"s, or have many LPs that go right to the minimum radius then going for an inner null of 63.5mm will definitely be an advantage.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
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