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Tonearm mounting differences Graham vs.Tri-Planar.

I would appreciate for explaining mounting differences Graham vs. Tri-Planar.
Is the high is the same for both?

In other words if I can place them on the same arm board (plinth) and only mounting holes drilling pattern would be different, the high would be the same, not requiring any high adapters, transition panels?
rokokono
stanwal's avatar
stanwal
3,147 posts
 
I have a Graham and the arm height is adjustable as it is on most arms; in most cases, not all, only one height board is offered. In all likelihood the same board will work but I have not used a Tri-Planar; is it also adjustable for height?
rokokono OP
17 posts
 
Yes, the Tri-Planar has adjustable high as well.
I am not sure if the same board would work since highs are different.
At worst case I would order the custom arm board.
dougdeacon
3,338 posts
 
Rokokono,

The same height mounting board will work for both arms. I've seen it done on more than one table.

The hole drilling patterns are quite different however, as are the mounting distances from the TT spindle. My suggestion would be to have a board dedicated to each arm.
syntax's avatar
syntax
2,193 posts
 
Here is a picture from both Arms

Graham Phantom / Triplanar
Above the Armboard they are more or less the same, the main difference here is, the Triplanar is a "on Board" mount, the Graham Board needs a hole because the Arm shaft and the Din Connector is below it (you need some space).
Graham Phantom
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