KEYED REED ORGANS --- MORE ORGANS

Free reed organs: models 44, 4410, 4600, and 4800

Free reed organs are similar to keyed reed organs, but air blows continuously over the reeds (instead of just when a key is pressed). This gives free reed organs a faster attack.

Free reed organs are extremely unique, and are often compared to Hammond tonewheels. They were manufactured during the 1950s and early 1960s.

Wurlitzer models 44, 4410, 4600 and 4800 were among the first generation of Wurlitzer free reed organs, and these models share a lot of technical drawings. Drawings for other models can be found here.‍ ‍

Models of free reed organs (and their initial year of manufacture) include:

  • 44 (1953)

  • 4600, 4601 (1954)

  • 4800 (1955)

  • 4410, 4602 (1956)

  • 4420 (1959)

  • 4430, 4460, 4462 (1961)

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4410
4600
4800

Electronic components in early Wurlitzer free reed organs

So far, we’ve scanned the following technical drawings of electronic components for the Wurlitzer Model 44, 4410, 4600 and 4800 free reed organs:

  • 13508 (Soldering lug for the Wurlitzer 4602 and 4800)

  • 18756 (SPST toggle switch for the Wurlitzer Model 44)

  • 18793 (Switch plate for the 44)

  • 18830 (Insulated mounting strip for the 44)

  • 18839 (Bulk shielding for the 44)

  • 18961 (Solder for the 44)

  • 19343 (Pilot light lens for the 4200)

  • 19345 (Plug and cable assembly for the 4600)

  • 19391 (Insulated mounting strip for the 4600)

  • 19582 (Lock switch for the 44)

  • 56958 (Light socket for the 4410 and 4460)

  • 66390 (Terminal, taper tap, for the 4401, 4600, and 4800)

  • 66396 (Receptacle, taper tap, for the 4410, 4600 and 4800)

Vintage technical drawing sheet for a part labeled 'Lug-Screwing' with sketches and handwritten notes, including revisions and approval details.
A handwritten parts history record sheet for a part numbered 13508, with details about dates, quantities, and inspection notes, made by the supplier Shakerpeck Inc.
A black-and-white record of parts history with handwritten entries, including part number 13508, part name 'Ground Ty', supplier 'Hessain Tool Works', and detailed inspection and approval information.
A handwritten parts history record sheet for a part named 'soldiering lug', supplied by Illinois Tool Works. The sheet includes two entries, with dates, receipt numbers, acceptance status, rejection status, inspection dates, inspector initials, and r
Handwritten parts history record sheet for a soldering lug, including dates, lot numbers, sample size, and inspector signatures.
A technical document from The Wurlitzer Co. titled 'Lug - Soldering' dated 9-12-66, specifying materials and inspection process details for steel parts, including check for finish, screw hole size, and parts being stuck together.
A torn and faded blueprint from 1875 with technical drawings, notes, and measurements for mechanical parts, possibly related to a washer or similar device, produced by The Rudolph Wurlitzer Company.
A black and white technical drawing or blueprint from 1956, showing detailed instructions and measurements related to a mechanical or industrial component or assembly, including notes on parts like nuts, nuts, and washers, with handwritten annotation
Blueprint drawing of a switch plate, including technical specifications and annotations.
A vintage engineering blueprint or technical drawing for a solder part, showing detailed specifications, measurements, and revisions.
Blueprint drawing of a strip-mounted insulated component with detailed measurements and specifications from 1952, created by The Rudolph Worlitzer Company.
Close-up of an engineering drawing or technical document with handwritten notes. It includes a part number 18839 labeled "shielding - bulk" and a date of June 13, 1952. The document has stamps marked "obsolete" and contains detailed specifications an
Blueprint of a solder part with handwritten notes about Ersin Multicore, 3 core solder, tin-lead alloy, with details about dimensions, material, and manufacturing specifications, dated October 3, 1952.
Blueprint or technical drawing of a lens pilot light with measurements and annotations.
Technical drawing of a plug and cable assembly with measurements and specifications, titled 'Plug & Cable Assembly,' dated 1934, created by The Rudolph Wurtizer Company.
Close-up of a vintage part number label from Mandex Manufacturing with the part number 19391, vendor number, and approval signatures, printed on lined paper with red and blue lines.
Technical engineering blueprint for a part labeled 'Insulated Mounting Strip' with measurements and design specifications from 1939.
Technical engineering drawing for an insulated mounting strip with detailed measurements and annotations from 1939.
A vintage letter with the header 'Wurlitzer Inter. Company Correspondence' dated October 16, 1962, addressed to Mr. Jim Pugh from Mr. Don Dickerson, and copied to several individuals. The letter discusses terminal strips purchased from an unapproved
A vintage handwritten record sheet for parts, labeled 'PARTS HISTORY RECORD', for part number 19391, named 'Valve Actuator', supplied by 'Mande Mfg. Co'. The sheet includes columns for inspection dates, lot size, sample, approval level, disposition,
A historical record of parts with handwritten entries on a ledger sheet, including part numbers, names, suppliers, acceptance, rejection, and inspection dates.
Technical blueprint or engineering drawing of a lock switch, showing front and side views, with handwritten notes including the part name, date, material, and revisions.
Technical blueprint drawing for a miniature bayonet light socket with measurements, notes, and manufacturer details, including sketches of the socket and specifications.
Technical blueprint drawing of a miniature bayonet type shell with measurements and annotations.
A scanned material evaluation report form for The Wurlitzer Company from December 3, 1962, filled out with handwritten details about vendor, part number, rejection reason, and engineering remarks.
A material evaluation report form from The Wurlitzer Company in Corinth, Mississippi, dated October 3, 1962. It contains handwritten entries about vendor, part, rejection reasons, and approval signatures.
A handwritten parts history record sheet for a socket part, listing dates, receipt numbers, acceptance, rejection, approval, inspection dates, inspector initials, and remarks from 1963 and 1964, with the part number 56968 and supplier Tucson Mfg. Co.
Image of a handwritten parts history record for a part called 'Figt Lockset' supplied by 'Designs Cop. of Europe'. The record includes dates, approval, rejection, inspection data, and remarks over three entries from 1962.
A vintage Parts History Record document for part number 57241, with handwritten entries including part name 'Socket', supplier 'Wundt Mfg. Co.', and inspection date of February 8, 1965.
A handwritten parts history record sheet for a part number 571241, listing various dates, supplier information, and remarks.
Blueprint drawing of a terminal taper tab with technical specifications and measurements.
Technical blueprint or schematic diagram for an aircraft receiver taper tab. Contains handwritten annotations, part number 66396, and details about construction, dimensions, and assembly. The document is from Rudolf Würlitzer Company, North Tonawanda 
44
4410
4600
4800

Mounting & fasteners

We have scanned the following technical drawings for mounting components and fasteners in the Model 44, 4100, 4600, and 4800 Wurlitzer reed organ:

  • 18506 (Mounting clip, natural key, pedal clavier, for the 4410)

  • 18740 (Bracket, lower back rail, for the 44)

  • 18797 (Nut for the 44)

  • 18902 (Screw, special winged neck, for the 44)

  • 18905 (Weld screw for the 44)

  • 18964 (Spring, stop and contact, for the Model 44 and 4410)

  • 18966 (Groove pin, type 3, for the 44)

  • 19107 (Deadener for the 44 and 4600)

  • 19190 (Locating plate and pin assembly, right hand, for the 4600)

  • 19277 (Eyelet for the 4600)

  • 19661 (Spring, hinge, natural, for the 4410)

  • 19663 (Nut plate, manual keys, for the 44 and 4600)

  • 19677 (Spreader, guide, for the 44)

  • 19683 (Spring, hinge, sharp, for the 44)

  • 19691 (Spring and spreader assembly for the 44 and 4420)

  • 19692 (Retainer clip and felt assembly, natural, for the 44)

  • 61262 (Belt and retaining assembly for the 4600)

  • 64244 (Nut plate, manual keys, for the 44, 4600, 4602 and 4800)

  • 67236 (Clip for the 4410)

  • 97397 (#10 screw eye for the 44 and 420 tone cabinet)

Blueprint for a mounting clip called 'Natural Key Pedal Claw', finished with zinc or cadmium plate, created by Rudolph Wurlitzer Company in North Tonawanda, NY, with technical specifications and measurements.
Blueprint drawing of a hockey goal frame labeled as part number 8740, with detailed measurements and specifications.
Technical drawing of a mechanical part labeled 'NUT'. It includes dimensions, notes on materials, and revision details at the top.
Technical drawing with measurements and notes for a part labeled 'NUT,' showing a top view and side view of a threaded nut with specifications, revision, and approval details.
A historical document titled 'Material Evaluation Report' from The Wurlitzer Company, dated September 13, 1962. It contains handwritten details about parts received, rejection reasons, and remarks, including rejection due to a missing cad plate and i
A detailed parts history record form with handwritten entries including part number 18797, part name Nut, supplier King Mfg. Co., receipt date 9-22-62, receipt number 1282, quantity 3000, and inspection date 9-24-62.
A scanned handwritten record page of parts history, showing part number 18797, part name 'Nut,' supplier 'Wurlitzer DeKalb,' and a date of receipt 9-12-62. The record notes acceptance of 3,000 units with a 1.5 QA value, and inspection date of 9-13-62
Blueprint drawing for a screw with detailed measurements and specifications, including the part name 'Screw - Special Winged Neck,' model 'Organ-44,' created by The Rudolph Wurlitzer Company, dated 18902.
Blueprint drawing of a weld screw part with detailed measurements and specifications, including revision date 9-12-52.
A technical blueprint drawing for a spring-stop rod disconnect part, dated 1952, produced by The Rudolph Wurzler Company. The blueprint includes detailed notes, measurements, and specifications.
A blueprint drawing titled "Groove Pin Type 5" from The Rudolph Wurlitzer Company, North Tonawanda, N.Y., dated October 16, 1952. The drawing includes technical details, dimensions, and notes related to a steel component made of cold rolled steel.
Vintage engineering blueprint for a groove pin, type 3, with detailed technical drawing and specifications, including dimensions, materials, and manufacturer information.
A technical drawing or blueprint of a part named 'DERADNER' by Carey Autobody Deradner, with various handwritten notes, part numbers, model information, and instructions for assembly.
A technical blueprint of an automotive part, labeled as '191/90 Part Name Location Plate & Pin Assem-R.H.' with detailed measurements, notes, and revisions, produced by The Rudolph Wurlitzer Company in North Tonawanda, NY.
Blueprint drawing for a hockey rink, labeled with part and material information, with handwritten notes including part numbers and dates, and decorative border on the sides.
Blueprint drawing for a mechanical part with annotations, part numbers, and technical specifications.
Blueprint drawing with technical specifications for a part titled 'Locating Plate & Pin Assembly - R.H.' from 1919, including measurements, annotations, and manufacturing information from The Rudolph Wurlitzer Company.
A black and white record sheet titled 'Parts History Record' for a part number 19190, named 'Listings Plate & Pin Assn,' supplied by Wirthzer Co. The sheet contains handwritten entries with dates, inspection numbers, lot sizes, sample sizes, and rema
Old document with typed and handwritten information, including part number, vendor, and test results, from The Wurlitzer Company in Corinth, Mississippi.
Blueprint drawing from 1927 for a race car part, including detailed specifications, notes, and technical measurements.
Blueprints or technical drawings from 1927 with detailed measurements, part names, and specifications for an engineering project.
Historical record document with handwritten notes, labeled as parts history record for part number 19277, titled 'Gylinder,' supplied by Edwin B. Stimson, with inspection dates and measurements recorded.
A vintage incoming quality control history card from The Wurlitzer Company with handwritten and printed data, including part numbers, dates, and inspection details.
Blueprint drawing of a spring hinge with measurements and specifications, dated 1966, from Wuritzer Company.
Technical drawing of a spring hinge part from 1961, showing dimensions, hole sizes, and notes on finish and materials used.
Blueprint drawing for a nut plate with manual keys, showing dimensions, notes, and specifications from The Rudolph Wurlitzer Company.
Blueprint drawing of a nut plate with specifications, measurements, and notes for manufacturing, created by The Rudolph Wurlitzer Company.
Handwritten record of parts history for a mute plate with details including part number, part name, supplier, dates, lot size, sample, and inspector notes.
A handwritten parts history record sheet with columns for part number, part name, supplier, dates, inspection results, and remarks. The sheet includes multiple entries with dates ranging from 1962 to 1964.
Close-up of a page with red ink stamp marks, including two circular stamps and scattered dashed lines and text.
An old document titled 'Incoming Quality Control History Card' from the Wurlitzer Company in Corinth, Mississippi. It contains handwritten and typed data about a part called 'Grove Pin' used on a Model 4100, with dates, lot numbers, inspection status
Blueprint drawing for a spreader guide with dimensions, notes, revision history, and material specifications. The drawing includes details about a 136' diameter hole, edge measurements, and technical notes from Rudolph Wurtizer Company, 1967.
Blueprint drawing of a spring hinge part with diagrams, measurements, and handwritten notes, dated 1968.
Old technical drawing or blueprint with handwritten notes, diagrams, and part numbers for a spring and spreader assembly from 1969.
Technical engineering drawing titled 'RETAINER CLIP & FELT ASSEM. - NATURAL' from 1962 with detailed diagrams, part numbers, and specifications related to a retainer clip and felt strip, created by the Rudolph Wurtizer Company.
A technical blueprint or engineering drawing for a belt and retainer assembly, showing detailed measurements and specifications.
Black and white technical drawing of a belt and retainer assembly, with handwritten notes indicating dimensions, materials, and specifications, dated February 26, 1954, from The Rudolph Wurlitzer Company in North Tonawanda, N.Y.
Technical blueprint for a part labeled 'Nut Plate - Manual Keys.' Contains measurements, notes on materials, and assembly details, with handwritten revisions and approval signatures.
Technical blueprint or engineering drawing from a document labeled 'Part Name: Nut Plate - Manual Keys.' The document contains detailed measurements, notes, and specifications, with handwritten and printed text. It appears to be a technical diagram r
Close-up of a historical material evaluation report form filled with handwritten notes, signatures, and stamped dates.
A historical document titled 'Material Evaluation Report' from The Wurlitzer Co., December 30, 1965. It contains handwritten notes, part numbers, quantities, and remarks related to material assessments and production details.
A handwritten record titled 'Parts History Record' for a part called 'Nut & Plate', with dates, inspection details, quantities, and remarks listed in tabular form.
Handwritten parts history record sheet for part number 64244, specifying details such as dates, quantities, approvals, inspectors, and remarks, related to a mute plate supplier.
A handwritten parts history record chart with columns for part number, part name, supplier, date received, revision number, acceptance status, reject status, invoice number, date inspected, inspector, and remarks. The chart includes entries with date
A vintage document titled 'Incoming Quality Control History Card' from The Wurlitzer Company, with handwritten data and signatures.
Close-up of a vintage handwritten ledger or record sheet with columns and rows filled with handwritten data in blue ink. The sheet contains various dates, numbers, and notes, with some handwriting overlapping and slightly faded.
Technical engineering blueprint or drawing with detailed measurements, annotations, and technical specifications.
Technical engineering drawing blueprint with handwritten notes, technical measurements, and annotations for mechanical part design.
Blueprint drawing of a metal part labeled 'clip'. The drawing includes detailed measurements and notes, along with revision history and material information.
Old handwritten technical document titled 'Material Evaluation Report' from The Wurlitzer Company, Corinth Division, Mississippi, dated May 22, 1963. Contains detailed handwritten notes, signatures, and various technical specifications and rejection
A handwritten parts history record sheet for part number 67236, part name 'clip,' supplied by The Cenders Co. It includes columns for date received, R.T. number, acceptance status, rejection, quantity, date inspected, inspector's initials, and remark
Close-up of a vintage engineering or quality control sheet with handwritten and typed specifications and measurements for a part labeled "clip."
An engineering blueprint showing a part labeled 'Screw Eye #10' with detailed measurements, material information, and manufacturer details. 
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4410
4600
4800

Felt

The drawings below include felt found in the Model 44, 4410, 4600 and 4800:

  • 19154 (Felt, pedal, key rail for the 4600)

  • 19155 (Felt, pedal, key rail for the 4600)

  • 19156 (Felt, pedal, key rail for the 4600)

  • 19157 (Felt, pedal, key rail for the 4600)

  • 19158 (Felt, pedal, key rail for the 4600)

  • 19648 (Felt, bulk, for the 4600)

Technical blueprint of a mechanical part with handwritten notes and specifications, including dimensions and material details, labeled with the date 5-28-52 and created by The Rudolph Wurlitzer Company.
Technical blueprint or engineering drawing of a part labeled as 'FEEL PEDAL KEY RAIL', with dimensions and notes, from The Rugelz Wurizer Company in North Tonawanda, NY.
Technical engineering drawing labeled 'Fleet Pedal Key Rail' with handwritten notes, measurements, and revision details visible.
Blueprint of a left pedal key rail with handwritten notes, dimensions, and labels from the Rudolph Wurlitzer Company, dated 1915.
Blueprint of Felt-Pedal Key Rail part with technical details, measurements, and notes from Rudolph Wurtizer Company, dated February 23, 1953.
Blueprint drawing of a felt pedal key rail with measurements and construction notes, created by the Rudolph Wurlitzer Company in 1957.
Blueprint or technical drawing of a metal pedal key rail with measurements and specifications, including text notes and revision information, created by Rudolph Wurlitzer Company in 1918.
A technical data sheet with handwritten notes and specifications for felt material, including part number, thickness, color, and manufacturing details. The sheet has a grid layout with sections for revisions, material, and approval signatures, and is
A vintage engineering blueprint drawing from 1964 detailing specifications for felt material, including thickness, color, and other technical notes. 
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4410
4600
4800

Labeling

The drawings below include labels found in the Model 44, 4410, 4600 and 4800:

  • 61663 (Label, mahogany, for the 44 and 4600)

  • 61664 (Label, ebony, for the 44 and 4600)

  • 61665 (Label, oak, for the 44 and 4600)

  • 61666 (Label, maple, for the 44 and 4600)

  • 61667 (Label, walnut, for the 44 and 4600)

  • 64305 (Label, tropicalized, for the 44, 4600, 4601, 4602 and 4800)

An engineering drawing of a label design showing the name 'MAHOGANY' in large outlined letters and dimensions. The drawing includes technical specifications and notes about materials and measurements.
Technical drawing of a labeled design with text 'EBONY' and dimensions, created by the Rudolph Wurlitzer Company, North Tonawanda, N.Y., dated 4-9-54.
Drawing of the word "OAK" on a technical sheet with measurements and notes, attributed to The Rudolph Wurlitzer Company.
Technical blueprint or engineering drawing of a label design, with measurements, annotations, and the name 'MAPE'.
Technical drawing of a label for model 440R, with handwritten notes, dates, and specifications, on pinkish paper.
A detailed technical drawing or blueprint of a scientific instrument, labeled 'TROPICALIZED', with specifications on dimensions, materials, finishes, and revisions, from the Rudolph Wurlitzer Company. 
44
4410
4600
4800

Cabinet

The drawings below include drawings for cabinet and cosmetic parts found in the Model 44, 4410, 4600 and 4800:

  • 18788 (End hinge, music rack, for the 44 and 4410)

A vintage blueprint drawing printed on purple paper with technical diagrams, measurements, and notes related to a mechanical part or assembly from the Rudolph Wurlitzer Company, dated 1978.