Victrolac Motion Picture Records
F. C. Barton · Journal of the Society of Motion Picture Engineers · 1932
A new type of disk record, known as the Victrolac record, is described. The material of which it is made is a thermoplastic resin, which must be cooled before being removed from the mold. The paper discusses briefly the characteristics of this material, the time of playing of records made of it, operating features of the tone arm and pick-up system, resonance characteristics of the tone arm, and the characteristics of the chromium needle.