On this page you can download free cartridge alignment protractors for quick and accurate alignment of cartridge / stylus overhang, offset and null points. We have truly universal two-point tools such as the Stupid Protractor, and tonearm specific types for Audiocraft, Helius, Heybrook, Linn, Rega and Thorens, all with easy to follow instructions detailing how to align a cartridge. To ...
The “Stevenson protractor” file proposes a generic Stevenson protractor. A novice should go for the Baerwald version, people who know what they’re doing will choose the one they want (since they are big boys). How to use this kind of protractor?
Cartridge Alignment Protractors Cartridge set up made easy with our free downloadable protractors Strobe Discs Check the running speed of your turntable Tonearm Alignment Calculator Pro Overhang Shift Calculator Calculate optimum tonearm mounting distance and analyse changes in cartridge alignment Cartridge Resonance Evaluator Evaluate the resonant frequency of your tonearm/cartridge ...
Now, this simplicity has a price: an arc is designed for a given mounting distance and you’re not supposed to use an arc protractor designed for a given mounting distance with another mounting distance. I drew my first arc protractors in 2000 or 2001 and on every arc I’ve designed, I always insist you respect the given mounting distance. That is why I am only proposing arc protractors for ...
Seb An attempt to understand the geometry of VPI tonearms The geometry used by VPI tonearms is presently undefined and this article will attempt to provide a better understanding of VPI’s tonearm geometry. I’m not the first to have questioned VPI’s tonearms. John Elison, for instance, contacted Harry Weisfeld several times over past years requesting VPI’s geometry parameters. Except ...
Overhang Shift Calculator This tool enables the user to assess the effects of changing stylus overhang while keeping the original angle of the cartridge in the headshell. This could be useful where the cartridge angle is fixed and overhang is adjusted by an arm base slide, or where you simply wish to keep the cartridge square in the headshell. You could also use it to assess the use of ...
During the second step, the protractor requires the cartridge to be moved back by 1.27 mm. I’m assuming here that the angle formed by the cartridge body on the headshell is conserved: you’re moving your cartridge back in the headshell, without giving it a twist.
