Quantity: 1 Set
1. Place this protractor on your turntable platter with hole over spindle.
2. Move cartridge/ tonearm until stylus rests exactly on center of bulls eye. (120.9mm radius).
Check that cartridge is square with outer set of grid lines.
If not, loosen cartridge mounting screws and twist cartridge lightly until it is square.
3.Move cartridge/ tonearm until stylus rests exactly on center of inner bulls-eye (66.04mm radius), Rotate protractor around spindle as required.
Check that cartridge is square with inner set of grid lines. – If not, change overhang, (move cartridge in or out along the axis) until cartridge is square.
4. Repeat step 2 and 3 till cartridge is square at both points. Tighten mounting, and recheck as above. Remove Protractor. Relax and enjoy!
Package Dimensions: 10x235x18