A damper grommet is a small circular rubber grommet found on the damper regulating screw of each note in Wurlitzer pianos. It is either black or grey in colour, depending on the model of Wurlitzer and year of manufacture. It inserts into a the damper lever clip found on the damper arm. Function: The grommet’s […]

Lost motion refers to the amount of movement that is not transferred between different parts of the piano action when it is engaged. It is usually because a small gap is present between different components. Because the energy is not transferred, it is referred to as ‘lost’. Function: This space is designed between mechanisms to […]