4017 --- 4019 --- 4026 4027 --- 4035 --- 4040 - 4050 - 4059 --- 4060 --- 4070 - 4075 4080 --- 4140 --- 4300 - 4370 - 4373 --- 4480 --- 4500 4502 - 4520 - 4570 4573 --- 4700 --- ALL SOLID STATE --- ALL INSTRUMENTS

Wurlitzer 4020 and 4030

The Wurlitzer 4020 and 4030 models are solid state transistor divider organs. Both models were released in 1969. They contain 13 bass pedals and two manuals.

The technical drawings for the 4020 and 4030 that we currently have scanned include:

  • 506737 (Grille cloth for 4020 series)

  • 506860 (Cleat, partition, lower, for 4020 and 4030)

  • 506714 (Cleat, lower end panel, right, for 4020 and 4030)

  • 506721 (Cleat, pedal housing, for 4020 and 4030 series)

  • 506856 (Baffle board blank for 4020 4030)

  • 657824 (Knob, tempo control, for 4020 series)

A technical drawing on a blueprint titled "Grille Cloth" showing measurements, materials, and details for manufacturing a grille cloth with a warp direction, including notes on cutting and assembly. It includes sections for revisions, approvals, and
Blueprint drawing of a cleat partition lower with dimensions, specifications, and material details. Includes notes on hole diameter, sink type, and manufacturing approval.
Technical engineering drawing of a lower end panel for a model series 4020-4030, made of oak wood, with detailed measurements and specifications for manufacturing.
Blueprint drawing for a cleat pedal housing made of oak wood, showing the design, measurements, and technical specifications, with handwritten notes, approval stamps, and signatures.
Technical drawing blueprint of a blank wood particle board baffle, with dimensions and specifications.
Detailed technical drawing of a knob labeled 'Knob - Tempo Control' with dimensions, annotations, and labels for manufacturing, including the use of acrylic, aluminum, and specific styling instructions.