The Vinyl Source Cartridge Arc Alignment Protractor. For use with Linn Tonearms.

Cartridge Arc Protractor for VPI JMW-9 - The Vinyl Source

Cartridge Arc Protractor for EMT 929 - The Vinyl Source

Cartridge Arc Protractor for Jelco SA-750L - The Vinyl Source

Cartridge Arc Protractor for Acos Luste GST-1 - The Vinyl Source

Cartridge Arc Protractor for Jelco SA-250ST - The Vinyl Source

Cartridge Arc Protractor for Fidelity Research 66S - The Vinyl Source

Cartridge Arc Protractor for ADC LMF-1 & LMF-2 tonearms - The Vinyl Source