Mulholland Press

Publications for the phonograph collector

The second style of Sonora phonograph is illustrated here. The tone arm featured linear tracking powered by a feedscrew. This design was found to be in violation of the basic Victor patents, and sales were prohibited. Consequently these feedscrew Sonora phonographs are rarely found.

Sonora Ad from Oct 1912 FRA


Watch a Video of the Feedscrew Sonora in operation