Sam's Telecomms Documents Repository
Sam's Telecomms Documents Repository
Mechanical Telegraphy - Teleprinters and Others| Automatic Teleprinter Working | Article from the Post Office Electrical Engineers' Journal, Vol 47, July 1954. Review of teleprinters and tape transmitters and reperforators for point-to-point working. Recent developments and future trends. 1.1 MB |
| The Automatic Telex Service | Paper No 215 presented to the IPOEE London Section in 1959 by Forster, Barton & Ellis. 34 pages with diagrams and photos. 4.4 MB |
| Baudot Multiplex Type-printing System | Post Office Technical Pamphlet for Workmen B6. A clear explanation of how the Baudot system worked, orginally from 1919 and reprinted 1934. Digital recreation from an original in the collection of Bob Fastner . 349kB |
| Creed
Model 75 Creed Model 75 - Teleprinters I have known |
An article by the late Alan Hobbs, G8GOJ, produced for the BARTG Magazine
Datacom.227kB Teleprinters I have known is a more description article about the development and design of the Model 75. 539 kB |
| Creed Model 75 Provisional Adjustment Instructions | Model PR Seventy-Five Printing Reperforator Provisional Adjustment Instructions April 1961. 1.0 MB |
| Creed Model 75 Equipment Manual
Introduction Part 1 Part 2 Part 3 Part 4A Part 4B Part 5 Part 6A Part 6B Part 6C Part 6D Part 6DD Part 7 |
Technical Manual for the Creed Model 75 teleprinter, 1965 Introduction 185 Kb Part 1 - Data Summary & Technical Description 1.8 MB Part 2 - Installation and Operation 753 kB Part 3 - Maintenance & Lubrication 3.0 MB Part 4A - Adjustments Pp 1 to 50 2.1 MB Part 4B - Adjustments Pp 51 to 97 2.0 MB Part 5 - Dismantling & Assembling Instructions 1.6 MB Part 6A - Appendices A to F 1.1 MB Part 6B - Appendix H Tape Reader Attachment 1.6 MB Part 6C - Appendix J Silencing Cover 3.3 MB Part 6D - Appendix L Printing Reperforator 1.3 MB Part 6DD - Parts list for Appendix L 3.6 MB Part 7 - Parts List 12 MB There is no Appendix I. As ITT Creed no longer exist you can't use the Parts List to order spares, but it does have rather good exploded diagrams of all the main units. Beware, though, it's a big file. |
| Creed Model 444 technical Specification | Creed publication summarising the technical features of the Model 444 (GPO Teleprinter No 15) 1.1 MB |
| Creed Model 444 - Teleprinters I have known | Article by Alan Hobbs describing the history and development of the Creed 444. First published in the Telecommunications Heritage Journal. 456 kB |
| Creed Model 444 Bibliography | Contains documents collected from various issues of the BARTG journal, Datacom which comprise the references contained within Alan Hobb's (G8GOJ) article, Teleprinters for the Radio Amateur at http://www.rtty.com/England/creed1.html. 356 kB |
| D3108 Commissioning Tests | Post Office Engineering Instruction D3108 on Commissioning Tests of Stations Equipped with Units Telex Nos 1,2,3,6, or 10. Courtesy of Kevin Dodman 655kB |
| Development of Telegraph Switching in Great Britain | Paper No 189 presented to the IPOEE London Centre in 1949 by Martin & Freebody. 24 pages with diagrams and photos. 4 MB |
| Elementary Principles of Telegraphy Systems up to Morse Duplex | Post Office Technical Pamphlet for Workmen B1. Starts from basic principles and works up through single and double current systems to the Wheatstone ABC. Digital Recreation from original owned by Mike Tyrrell. 346kB |
| Eyeball Characters | An article by me on how to produce characters in punched tape that
can be read by eye. Produced for the BARTG Magazine
Datacom.[HTML] |
| Hughes Type-Printing Telegraph | Post Office Technical Pamphlet for Workmen B5. A short description of the operation of the Hughes Printing Telegraph, first published 1919. Explains the signalling method and how the sending and receiving ends are synchronised. Digital recreation from an original in Martin Loach's collection. 394kB |
| An Introduction to Amateur Radio Teletype | The definitive guide to amateur radio teleprinting written by one of the pioneers, the late Irvin Hoff, W6FFC. 188kB |
| An Introduction to Teleprinters | and Punched Tape Equipment. Creed publication from 1958 with many photographs of current equipment, which was the Model 54 at the time. The 'new' model 75 gets a brief mention. Digital recreation. 2.5 MB |
| The Introduction of Automatic Switching to the Inland Teleprinter Network | Paper No 195 presented to the IPOEE London Centre in 1949 by Wilcockson & Mitchell. 32 pages with diagrams and photos. 2.7 MB |
| Morse Keyboard Perforators | Post Office Technical Pamphlet for Workmen B3. Wheatstone high speed Morse system - Keyboard preforators. Covers the Gell, Kleinschmidt and Creed machines. First published 1919: reprinted with corrections to 1934. Courtesy of Hywel Clatworthy. 1.8 MB |
| Quadruplex Telegraphs & Repeaters | Post Office Technical Pamphlet for Workmen B4. Part A explains the fundamentals of quadruplex working with step-by-step circuit analysis. Part B states the reasons for repeaters and lists the different types. First published 1919: reprinted 1936 with corrections to 1934. Digital recreation from an original in the collection of Martin Loach. 334 kB |
| RTTY The Easy Way | A guide to setting up an amateur radio teleprinter station. Fifth edition, edited by Alan Hobbs, G8GOJ. Published by BARTG 455kB |
| Telegraphy | A resumé of electrical telegraphy from the centenary edition of the Post Office Electrical Engineers' Journal, Vol 49 Part 3, October 1956. Digital recreation from an original in the collection of Bob Fastner. Extra pictures thanks to Fons Vanden Berghen. 909kB |
| Teleprinter No 11 | Article from the Post Office Electrical Engineers' Journal, Vol 46, July 1953. Replacement for the Teleprinter NO 3 which uses many common parts from the Model 7. 928kB |
| The Teletype Story | A glossy history of the Teletype Corporation prepared for its Golden Jubilee in 1958. It was given away at special occasions, to good customers, and to most anyone who wanted a copy. Thanks to Don Robert House for the original and George Hutchison for scanning it. Digital recreation of the text. Rather heavy on graphics - hence the large file size 6.5 MB |
| Tuning Aids | A booklet showing circuits and construction details for various RTTY tuning aids - a simple scope and the more advance Toni-Tuna, designed by Tony Oakley, G4HYD. Published by BARTG 1.2 MB |
| Western Electric Duplex Multiplex Type-printing System | Post Office Technical Pamphlet for Workmen B7. Includes the Murray and Siemens & Halske Multiplex Systems. Detailed explanation of how the systems work and the gains in circuit capacity from using multiplex working. Digital recreation from an original in the collection of Martin Loach. 556 kB |
| Teletype Model 28 Technical Data | Teletype Model 28 KSR and RO Technical Data on 'Page Printer Sets'. NADCOMM collection, courtesy of Don Robert House 3.3 MB |
| Teletype Model 28ASR General Description | Teletype Model 28 ASR A glossy brochure describing the general features of the Model 28 automatic send/ receive set, Issue 1 1958. NADCOMM collection, courtesy of Don Robert House. Much colour and many illustration hence large file size 13.3 MB |
| Teletype Model 28 RT Set | Teletype Model 28 RT set (Reperforator, transmitter-distributor) for high speed message relaying: General desrciption. Courtesy of Don Robert House. 1.1 MB |
| Teletype Model 33 Specifications | Product data sheet for Model 33 TWX, ASR, KSR and RO sets. Courtesy of Don Robert House. 856 kB |
The Teletype Bulletins for the Model 15 were scanned in by Jim Haynes and hosted on Eugene Herz's web site. They were in JPG format as individual pages. I thought they might be more convenient collated into PDF documents.
Some of the Bell System Practice (BSP) Documents are courtesy of Steve Cichorsky via the Greenkeys mailing list.
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Bulletin 144 Description Text part Diagrams |
Bulletin No 144. Description of the type bar page-printing teleprinter, Model 15. text: 1.1 MB, diagrams: 2.0 MB |
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Bulletin 138 Adjustments Front pages Section 1a Section 1 1b Section 2 Section 3 |
Bulletin No 138. Adjustment instructions for the type bar page-printing teleprinter, Model 15. Front: 463 kB, Sect 1a: 2.3 MB, Sect 1b: 2.2 MB, Sect 2: 206 kB, Sect 3: 1.3 MB |
| Bulletin 1147B - Motors | Bulletin No 1147B. Motors, Governors and Accessories (pre-Model 28 lines). Courtesy Jim Haynes. 879 kB |
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Bulletin 1037B Parts Catalogue Front pages Section Ia Section Ib Sections II to IV Section V |
Bulletin No 1037B. Parts Catalogue for the type bar page-printing teleprinter, Model 15. Front: 518 kB, Sect Ia: 1.8 MB, Sect Ib: 1.2 MB, Sect II-IV: 439 kB, Sect V: 2.0 MB |
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Bulletin 213B Sequential Selector Description |
Bulletin No 213B. Description of the Sequential Selector mechanism with diagrams, popularly know as the 'Stunt Box'. 1.8 MB |
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Instruction Manual |
Instruction Manual No 29. Simply a list of the documents required for an installation of the Teletype Model 15, Model 19 and Model 14 Reperforator set. 71 kB |
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Maintenance tools |
BSP catalogue of the tools supplied to AT&T technicians for maintenance work on Teletypes. Diagrams with parts numbers. Courtesy of Steve Cichorsky. 844 kB |
Stationery for Teletypewriters |
BSP Information on Stationery for Teletypewriters. Information on friction, fanfold and sprocket fed paper, gummed tape, and ribbons. Dimensions and paper weight. NADCOMM collection, courtesy of Don Robert House. 513 kB |
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Subscribers set 130 Description Subscribers set 130 Installation |
BSP AT&T Subscribers set 130, a voice-frequency carrier terminal unit. The installation document lists all the voice frequencies available. Courtesy of Steve Cichorsky. 485 & 215 kB |
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Tape Winder Description |
BSP Teletype Tape winder description. Courtesy of Steve Cichorsky. 260 kB |
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Teletype Equipment for 5-level data communications |
Eight page booklet describing the range of equipment for 5-level data comms - The Models 28 and 32 - and their variants. Also gives the dimensions and weights. Courtesy of Don Robert House. 825 kB |
Repository Index