Uni-Protractor Set tonearm alignment

Or the links for your calculations if are different from the VE tools.

Thank you again.

Raul.

Dear T_bone: Re-reading your post I found out those offset angles: 20.325/20.574 that I don't take in count ( I use the ones that gives the " natural " calculations, not forced ones. ) due that I use the VE calculator instead the comparator tool.

But I'm still missing something because this link calculations/graphics don't shows your numbers even that the input data comes from your post:

www.vinylengine.com/tonearm_alignment_comparator.php?m_el=246&m_oh=14.5&m_oa=20.325&compare=i&submit=calculate

Regards and enjoy the music,
Raul.

Excellent work T-Bone, you are not just an expert on all that is good with vintage Japanese hifi.

Not sure I fully understand the maths, however you look to have proved that from your assumptions, Dert's numbers do provide a better mousetrap technically.

I am sure Dert will say how close you are.

BTW, might be a stupid question, but how do you accurately change/measure the offset for the headshell of any given alignment?

Looks like our resident expert has someone else to argue with - you :-)

Once we cannot change the offset FOR the headshell...
...I suppose it is just a number and the only thing that we have to do, is to align the cantilever (by twisting the cartridge AT the headshell) to follow the axis of the tangent at the null point.
This particular tangent, is quite easy to designed by drawing the line from the center of the spindle to the desired null point and then we can easily find & draw the perpendicular of this line that intersects at the null point.
But I think that Daniel wants to provide a precise goniometer at the near future!