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Tonearm compatibility and advice

Dear Vinyl Gurus,

Does the spindle-to-pivot distance determine whether an arm fits a particular table? Or is the needle-to-pivot the determining factor? Or does the headshell adjustment allow you to make up for small mismatches?

The tonearm mounting hole on my table is exactly 222 mm from the center of the hole to the spindle. I was considering a Hadcock GH 228 Export, but I'm confused whether it will work with my table. The spindle to pivot distance for the Hadcock is 212.8 mm, which is 9 mm short, but the needle to pivot distance is specified as 228.6 mm which will make the needle overhang by 6.6 mm.

I would greatly appreciate help understanding this geometry stuff. More specifically, will this arm work with my table? Thanks in advance.

For what it's worth:

TT spindle to center of mounting hole: 222 mm
TT arm mounting diameter: 22 mm
Hadcock GH 228 spindle to pivot: 212.8 mm
Hadcock GH 228 pivot base diameter: ~15 mm
Hadcock GH 228 specs
My table specs
mingles

Showing 1 response by restock

restock
831 posts
 
Doug,

wouldn't the Arc style protractor put the alignment off if the pivot to spindle distance isn't perfectly accurate (222mm vs. 223mm)?

On another note, the Denon DL103 is a less than perfect match to a Hadcock 228 arm, due to the low compliance of the Denon. You may try but results may be mixed. the Hadcock should work better with a higher compliance cartridge. Bill (Audiofeil) would know.

Finally, yes, the Schroeder No.2 can be mounted on a Rega (or Rega style) turntable. Mounting diameter for the No.2 arm is 20 mm for the standard No.2 and 23mm for the No.2 fw (only available with DPS table). The 20 mm version can be mounted on a standard Rega table with the mounting collar supplied with the No.2 arm.

Rene
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