The Amphion Action

The Amphion Action as advertised in a 1918 issue of the Music Trade Review.

Advertisement from the Music Trade Review.

The Amphion Action as advertised in a 1918 issue of the Music Trade Review. The utter simplicity of the Amphion action is immediately obvious, and the cut-away view shows the uncluttered internal construction thereby making it easy to comprehend how the unit value functions. The Amphion action was comparatively cheap, simple to install, adjust, and repair--all sought after attributes that any player piano manufacturer could readily appreciate. All that was needed, for instance, to replace an errant unit-valve was to remove a single hex nut holding a spring clip retainer in place and the valve could be immediately replaced--and without the annoying and time consuming task of removing the stack from the piano. Considering the mechanical complexity of the Melville Clark designs and the factory space required to manufacture them it is no wonder that the Apollo Piano Company (i.e., Wurlitzer) elected to abandon the old designs for the Amphion system.

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