Fld,
Unfortunately, The pivot on the 507 MK2 is not marked. I also tried to use the Feikert protractor, but I was always off by a cm or so.
Via trial and error, you can guess by adjusting the tonearm base and moving the tonearm horizontally until the protractor "needle" stays on the same spot on the arm as the arm rotates.
I ended up using the Mint Protractor, which I find the most accurate protractor out there.
Best,
iSanchez
Unfortunately, The pivot on the 507 MK2 is not marked. I also tried to use the Feikert protractor, but I was always off by a cm or so.
Via trial and error, you can guess by adjusting the tonearm base and moving the tonearm horizontally until the protractor "needle" stays on the same spot on the arm as the arm rotates.
I ended up using the Mint Protractor, which I find the most accurate protractor out there.
Best,
iSanchez