A mechanical sustain pedal similar to that of a conventional piano is fitted.
Inventor Benjamin Miessner had designed an amplified conventional upright piano in 1935, and Wurlitzer used his electrostatic pickup design, but replaced the strings with struck steel reeds.
The Wurlitzer piano is usually a 64-note instrument whose keyboard range is from A an octave above the lowest note of a standard 88-note piano to the C an octave below the top note of an 88-note piano.
There were several names that were controlled by Wurlitzer by the early 20th Century, including Apollo, Bauer, Melville Clark, De Kalb, Ellwood, Farney, Kingston, Merriam, Strad and Underwood.
After the Great Depression era, Wurlitzer built several lines of spinets, consoles and baby grand pianos well into the 20th Century.
The early models sustain pedals actually attached through the side of the instrument, with the pedal eventually being connected directly under the unit in the late 1950s.
The earliest versions were the "100" series; these had a case made from painted plywood and were fitted with a single loudspeaker mounted in the rear of the case.
Of course, not each and every one of the popular, attention stealing instruments was manufactured by Wurlitzer & Company.