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. Tone production in all models comprises a single steel reed for each key, activated by a miniature version of a conventional grand piano action and forming part of an electrostatic pickup system using a DC voltage of 170v. A mechanical sustain pedal similar to that of a conventional piano is fitted.
Most Wurlitzer electric pianos are portable models with removable legs and the sustain pedal attached via a Bowden cable; console, "grand" and "spinet" models were also produced with a permanently attached pedal. 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 50s.
- Portable models
The earliest versions were the "100" series; these had a case made from painted fibreboard or wood and were fitted with a single loudspeaker mounted in the rear of the case. Apart from the very first models, the portable Wurlitzer pianos featured a tremolo effect with fixed rate but adjustable depth. Models produced until the early 1960s used valve circuitry; the 140B was the first solid-state model. The next model, the 145 was replaced in 1968 by the plastic-bodied 200, a much lighter instrument (56 lbs, without the legs or pedal) with two loudspeakers facing the player. This model was updated as the 200A a few years later and continued in production into the early 1980s. The 200 was available in black, dark "Forest Green", red or beige. The 200A was only available in black. The white Wurlitzer sometimes seen being used by bands such as The Beach Boys, The Carpenters and Supertramp was a custom painted finish not made by the manufacturer. The last version to be introduced was the 200B in 1978; this was visually identical to the 200A but was designed to be powered by a pair of medium-tension (85v) rechargeable batteries; it had no internal speakers.
- Console models
One important role for the Wurlitzer piano was as a student instrument in school and college music labs, and non-portable console versions were made for this purpose. The teacher had a headphone and microphone to be able to listen into each student individually and talk to them without others hearing them. All students listened to each of their instruments through headphones. Those usually seen resemble a beige or light green Model 200 mounted on a matching pedestal containing a loudspeaker, headphone niche and sustain pedal. On these models there is no tremolo (although later models simply have the facility disabled). Some of these models were given the designation 206/206A. Many console models have recently been modified to 200/200A specification for use on stage. Rarer than the student models are the teacher consoles, featuring multiple monitor/mute switches and, in some cases the facility to add a large illuminated display panel operated via the keyboard.
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