A number of original Walther service manuals and technical documents are held on file and can be made available for reference.
In the table below, the "Language" column indicates German, English, French, or Spanish. Publication dates are shown where available. The columns headed "Text" and "Drawings" show the (approximate) number of pages of each.
Please use the Enquiry Form if you have a particular interest in any of the items listed.
| Model | Title | Lang | Year | Text | Dwgs | Notes |
|---|---|---|---|---|---|---|
| Comptess | Assembly Instructions Model COMPTESS | E | 28 | |||
| Comptess | Checking and Adjusting Instructions for Model COMPTESS | E | 8 | Includes Supplement 1 (1 page). | ||
| Comptess | Description of Machine Functions Model COMPTESS | E | 13 | 2 | Colour drawings 15-16. | |
| Comptess | Einstell- und Pruefanweisung | G | 7 | Includes Supplement 1 (1 page) | ||
| Comptess | Ersatzteile-Katalog | GEFS | 1964-71 | 5 | 45 | Contains updated pages from 1966-71 |
| Comptess | Funktionsbeschreibung | G | 13 | |||
| Comptess | Montageanleitung | G | 28 | |||
| Comptess | Teileverzeichnis | GEFS | 15 | Part numbers and names in 4 languages. | ||
| Comptess 11 | Adjustment and checking instructions | E | Feb 1974 | 20 | Includes disassembly and assembly instructions. | |
| Comptess 11 | Spare parts catalog | E | Feb 1974 | 25 | 25 | Each drawing page has a facing page with part numbers and names in English. Page numbering 21-46 continues from Adjustment Instructions. |
| Diwa 32 | Einstell-Pruefanweisung | G | Nov 1970 | 47 | 30 | Colour drawings 8-14 from Multa 32, 15-16 from Comptess, 17-27 from Multa GT, 28-37 from Diwa 32. |
| Diwa 32 | Einstell-Pruefanweisung | G | Nov 1970 | 47 | 38pp text and illustrations, 10pp test calculations | |
| Duplex 332, Simplex 332 | Ersatzteile-Katalog | G | Mar 1972 | 55 | 50 | Each drawing page has facing page with part names and numbers. |
| Multa 32 | Ersatzteil-Katalog | G | Jan 1963 | 4 | 36 | Pages numbered to Sheet 36, numerous updates to 1968. |
| Multa 32 | Parts Index | GEFS | 62 | Part names and numbers in 4 languages. | ||
| Multa 32 | Special Feature- Pin Feed Device | GEFS | May 1967 | 5 | Pages numbered as Parts Catalog Sheets 37-41. | |
| Multa 33 | Ersatzteile-Katalog | G | May 1971 | 33 | 32 | Each drawing page has a facing page with part names and numbers. |
| Multa GT | Description of Machine Functions | E | 50 | 11 | Colour drawings 17-27. | |
| Multa GT | Einstell- und Pruefanweisung | G | 13 | |||
| Multa GT | Ersatzteile/Spare Parts | GEFS | 77 | Part names and numbers in 4 languages. | ||
| Multa GT | Funktions-beschreibung | G | 32 | 11 | Colour drawings 17-27 | |
| Multa GT | Inspection and Adjustment Procedure | E | 19 | 14pp instructions, 5pp test calculations, 1 amendment page. | ||
| Multa GT | Instructions for Assembly | E | 108 | |||
| Multa GT | Montageanleitung | G | 82 | |||
| Multa GT | Parts Catalog Update Pages | GEFS | Jan 1968 | 12 | Set of 12 update pages. | |
| Multa GT | Special Feature - Pin feed device | GEFS | May 1966 | 4 | 4 | Numbered as Parts List pages 48-51. |
| P 12 | Ersatzteil-Katalog | G | Aug 1958 | 39 | 25 | 20pp part names & numbers, 19pp parts price list. |
| P 12 | Sterling and Decimal Machine - Mechanical Principles | E | Jul 1958 | 118 | 25 | Also sold as Comptograph 101. Text includes full Description of
Operation and Dis/Assembly Instructions, with 25 sheets of parts
drawings. |
| P 132, P 232 | Parts Price List | EG | Feb 1962 | 34 | ||
| P 132, P 232 | Spare Parts Catalog | EG | Nov 1961 | 34 | 33 | Like P 12 with wide/shuttle carriages, also sold as Comptograph 101W and 101WS. 33pp drawings with part numbers, 34pp text with part names and numbers in German and English. |
| S 9, S 10, SR 12, SRM 13 | Vorschriften zum Pruefen und Justieren | G | 130 | 80pp instructions and drawings, 50pp test calculations. | ||
| SM 12, Multa 32 | Mode of Operation | E | 6 | 7 | Colour drawings 8-14. | |
| SM 12, Multa 32 | Mode of Operation Models SM 12 and MULTA 32 | E | 6 | 7 | Colour drawings 8-14. | |
| SM 32 | Disassembly and Assembly Instructions | E | 19 | |||
| SM 32 | Disassembly and Assembly Instructions Model SM 32 | E | 10 | |||
| SM 32, Multa 32 | Miscellaneous small items | GEFS | 30 | Parts updates, ordering instructions and forms, translation of some remarks on drawings, etc. Approx 30pp. | ||
| WSR 160, WSR 110 | Disassembling and Assembling Instructions | E | 11 | 12 | Detailed instructions, many photos with part numbers. |
| Model | Title | Lang | Year | Text | Dwgs | Notes |
|---|---|---|---|---|---|---|
| ETR 10 | Funktionsbeschreibung und Ersatzteil-Katalog | G | May 1970 | 78 | Specs, descriptions, calculations, module-level spare parts. | |
| ETR 10 | Funktionsbeschreibung und Ersatzteil-Katalog Teil 2 | G | Feb 1971 | 59 | 28 | Descriptions, a few circuits and layouts. Includes printer setup instructions (pp20-31), parts catalog (pp33-59) |
| ETR 10 | System-Daten | G | Jan 1970 | 28 | Sheets numbered 57-81. Logic drawings (gate level) 25pp, some printer drawings, specs on 9000-series ICs and shift registers. | |
| ETR 1030-31 | Funktionsbeschreibung | G | Jul 1974 | 18 | Includes specs, full schematics and layouts, and test calculations. | |
| ETR 2-3 | Funktionsbeschreibung Teil 2 und Ersatzteile-Katalog | GE | Jan 1972 | 48 | Many | Full descriptions, layouts, schematics (pp1-33), parts catalog pp34-48. Includes 14-page typed English translation. |
| ETR 20-22 | Funktionsbeschreibung Teil 2 | G | Mar 1973 | 32 | Many | Descriptions, layouts, schematics. |
| ETR 20-25 | Description of Machine Functions and Spare Parts Catalog | E | Mar 1973 | 20 | Descriptions, test calculations, dis/assembly instructions. | |
| ETR 20-25 | Ersatzteile-Katalog | G | Mar 1973 | 30 | 30 | Sheets numbered 36-65. |
| ETR 20-25 | Modifications on Machines ETR 20-25 | E | 2 | 2 | Field modifications to correct problems. | |
| ETR 20-25, ETR 20S-25S | Ersatzteile-Katalog | G | Mar 1973 | 30 | 28 | |
| ETR 23-25 | Funktionsbeschreibung Teil 1 und Ersatzteile-Katalog | G | Mar 1973 | 35 | Descriptions, test calculations, dis/assembly instructions. | |
| ETR 23-25 | Funktionsbeschreibung Teil 2 | G | 26 | Descriptions, A4 drawings, and parts lists. | ||
| ETR 23-25 | Informationsunterlagen | G | Mar 1973 | 2 | 26 | Full schematics, layouts, and parts lists, mostly on large blueprints. |
| Mullard MOS IC Application Note TP1288 | Integrated Desk Calculator Systems EDC100, 101, 110, and 111 | E | 1971 | 20 | 1 | EDC100 was prototype for Walther ETR 2-3. |
| Mullard MOS IC Application Note TP1289 | Functional Specification for EDC120 Integrated Desk Calculator | E | 1971 | 11 | 10 | Extended version of EDC100/ETR 2 |
| Philips App Lab Report EDP 7123 | Extension of EDC calculator sets for full register display | E | 14-6-1971 | 8 | 4 | Describes 3 display driver options. |
| Philips App Lab Report EDP 7124 | 8-digit readout for calculator set EDC100 | E | 21-7-1971 | 8 | 1 | "EDC100" has been over-typed with "Walther ETR2/3" in all but one place. |
| Philips App Lab Report EDP 7125 | List of components for EDC100 kit | E | 22-7-1971 | 8 | 1 | "EDC100" has been over-typed with "ETR 2 prototype". Includes full winding details fo rmains transformer. |
| Philips App Lab Report EDP 7126 | The 16-digit calculator set EDC110 | E | 19-8-1971 | 4 | Title page overtyped with: "The EDC110 is a modified version of the ETR 2" | |
| Philips App Lab Report EDP 7127 | The 4-chip calculator sets EDC101 and EDC 111 | E | 9-8-1971 | 3 | 5 | |
| Philips App Lab Report EDP 7128 | Functional Specification of calculator set EDC120 | E | 26-8-1971 | 14 | 8 |