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General| Brand | Wurlitzer |
|---|---|
| Model | 140 |
| Category | Synthesizer |
| Language | English |
Provides dimensions, weight, and finish details for various Wurlitzer Electronic Piano models.
Details musical range, keyboard, action, hammers, tone generators, speakers, and power requirements.
Explains the transistorized amplifier circuit for Model 140.
Explains the transistorized amplifier circuit for Models 140B & 720B.
Explains the vacuum tube amplifier circuit for Models 145 & 720.
Describes reed bar construction, pick-ups, and reed maintenance.
Explains the function of the Wurlitzer Electronic Piano action, similar to conventional pianos.
Outlines steps for preparing the piano for servicing, including top assembly removal.
Details procedures for inspecting keyboard felts and easing sticky keys.
Covers inspecting action for free centers and shrinking sluggish action centers.
Includes inspecting action for damage, setting key height, and squaring/leveling keys.
Describes key spacing adjustments and procedures for removing action parts.
Explains how to adjust the hammer striking point on the reed bar for optimal tone.
Details hammer blow distance, lost motion adjustment, and hammer let-off (fly escapement).
Covers hammer check-back adjustment and setting the proper key dip (touch laying).
Explains damper sustain adjustment and leveling procedures for uniform damper lift.
Details the procedure for adjusting damper regulating screws for proper reed damping.
Circuit diagram for the Model 145 Electronic Piano amplifier section.
Circuit diagram for the Model 140B/720B Electronic Piano, including power and amplifier.
Layout diagram for the printed circuit board of the Model 140-B amplifier.
Diagram illustrating the mechanical components and layout of the Model 140 piano action.
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