A number of observations are reported on an improved disc reproducer consisting of a tone arm and cartridge assembled as a matched system. Interchangeable stylus assembleis with spherical or biradial tips were used with conventional test records. Since only the stylus assemblies were changed, the effects caused by changes in tip radii are readily seen. The data touch on several problems involving biradial and spherical stylus relationships for which a theoretical model is incomplete, especially such effects of biradial styli as extremely high stress imposed on the record groove and the possibility of shorter record life. Record wear data are shown for the biradial stylus which indicate that record life is about the same as with a spherical tip, when both are used in low-inertia assemblies.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.