4017 --- 4019 --- 4020 - 4026 4027 --- 4030 - 4035 --- 4040 --- 4050 - 4059 --- 4060 --- 4070 - 4075 4080 --- 4140 --- 4300 --- 4370 - 4373 --- 4480 --- 4500 4502 --- 4520 --- 4700 --- ALL SOLID STATE --- ALL INSTRUMENTS

Wurlitzer 4570 and 4573

The Wurlitzer 4570 and 4573 are solid state transistor divider organs released in 1972. The 4573 contains the Orbit III synthesizer.

The technical drawings for the 4570 and 4573 that we currently have scanned include:

  • 507648 (Molding, inside short, for Wurlitzer 4573)

  • 659433 (Support bracket, right hand, for Wurlitzer 4570)

  • 659434 (Support bracket, right hand, for 4570)

  • 659436 (Bulk extrusion, straf, for 4570)

  • 659732 (Buss wire for 4570)

  • 659743 (Tape, hot stamping, for 4570)

  • 660111 (Filler block, keyblock left, for 4573)

Technical blueprint of an inside short molding, showing detailed measurements and specifications for manufacturing, with annotations indicating dimensions, angles, and material used, produced by The Wurlitzer Company.
Technical blueprint drawing of a support bracket with measurements and specifications, created by The Wurlitzer Company.
A parts history record sheet with handwritten notes, dates, part numbers, and remarks. The sheet tracks inspection and disposition details for a part identified as SUPPLIED BOAT R.H., with various entries from 1971 to 1974.
Technical drawing of a support bracket, with detailed measurements and specifications, produced by The Wurlitzer Company.
Close-up of a handwritten parts history record form on paper, listing part number, name, supplier, date received, inspected, lot size, sample, and remarks.
Technical engineering drawing of a bulk extrusion strap made of extruded aluminum, with detailed measurements and specifications
Technical engineering drawing sheet showing specifications for bus wire wire, including diagram, material composition, and production guidelines, issued by The Wurlitzer Company.
Close-up of a document page showing part number 659743 for green heat-stamping tape from Hommet Tape, with information about the approved source and other product details.
Technical engineering drawing document for tape labeled as 'hot stamping', measuring 4 inches by 200 feet, green color, approved by engineering department, with handwritten notes and signatures, and company and location details.
Technical drawing or blueprint of a filler block, labeled as 'Filler Block - Keyblock Left - 3rd Man,' with model number 4573 and assembly number 660066. The drawing indicates the finish as 'Black Dip' and material as 'Poplar.' It includes measuremen
Technical drawing blueprint for a filler block for a keylock left, model 4573, with a black dip finish, made of poplar, by the Wurlitzer Company, dated 1971, showing dimensions and specifications.