Sam Hallas' Website
| ASCII 63, 67 & Model 35 keyboard | Code charts for ASCII 63 and ASCII 67
followed by relevant layouts of Teletype Model 35 keyboard
layouts. 311 kB |
| 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 |
| Basic Principles of a Teleprinter | Short course from Creed's training school. 8
pp with diagrams 274 kB |
| 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 |
| Central Telegraph Office
Photo Album |
Part of a three-day fund-raising bazaar, run
by the Post Office's CTO staff in 1922 in aid of St
Bartholemew's and other local hospitals. Sweets, dolls, "a
large amount of knitted costumes" and even "a doll's house
and a number of pictures and porcelain of various kinds"
gifted by the Queen were among the items that were on sale.
There were also concerts and other side shows too, and the
event ended up raising around £3000. Presumably, sales of
this album - both at the event and to colleagues at other
centres at 2s-6d, post free, made up some of that. Courtesy
of Neil Johannessen. 20pp 11 MB |
| Code & Interface reference cards | Handy little reference cards supplied by
manufacturers with teleprinter codes, interface signals,
ASCII, EBCDIC, wpm to bits/s. Courtesy of Don Robert Hosue 1.6
MB |
| Creed
6S6 autotransmitter maintenance manual Creed 6S6 Connections |
Maintenance manual for the 6S6 & 6S6M
autotransmitter (tape reader). Courtesy of Dave Wade, G4UGM.
3.5 MB Connection details for the Creed model 6S6 paper tape reader. Extract from the RSGB Teleprinter Handbook. 91 kB |
| Creed Jones Plug Arrangment | Where Creed teleprinters were fitted with a
12-pin miniature Jones plug, this was the standard
arrangement of pin numbers and wire colours. 14 kB |
| Creed Models 7
& 8 Maintenance Instructions Creed model 7B - RSGB Handbook Creed model 7 - Teleprinters I have known Automatic CR/ LF on a Model 7B Overlap cam unit Teleprinter No 7 |
Creed Models 7 and 8 Maintenance
Instructions. Creed Instruction Booklet No 78. 64 pages of
text with Circuit Diagrams, Maintenance, fault finding and
adjustment instructions. Dismantling and assembly spring
tensions and lubrication. 17 pages of mechanical diagrams.
12th Edition. 4.3 MB Creed Model 7B: Part of Chapter 2 from the RSGB Teleprinter Handbook by Hobbs, Yeomanson & Gee. This is pretty much a verbatim copy of part of the Creed handbook for the Model 7B teleprinter. 2.0 MB Teleprinters I have known: Article by Alan Hobbs, G8GOJ, from the Telecommunications Heritage Journal, February 2003 Automatic CR/LF: Discovered in my stash of old documents was this item from the BARTG Newsletter for June 1974. A cunning modification to add automatic carriage return and line feed to the Model 7B. 136 kB Overlap cam unit: Creed Technical Information Sheet No 30. Supplement describing the overlap cam unit that modifies printing so that it occurs immediately instead of after the next character is received. Teleprinter No 7: Post Office Educational Pamphlet, Telegraphy 4/1. The Teleprinter No 7. Excellent explanation of the operation of the teleprinter with mechanical diagrams. 2.4 MB |
| Creed Model 25 Punch | Creed Model 25 parallel punch, intended for
data processing applications. Courtesy of Dave Wade, G4UGM.989
kB |
| Creed Model 47 Tape Printing Teleprinter | Creed Model 47 intended for use in the Post
Office telegram network. It printed on paper tape.
Description and Principles of operation manual, 48 pages,
Courtesy of Dave Wade, G4UGM.7.6 MB |
| Creed Model 54 Maintenance Manual | Creed No 54 Page teleprinter Maintenance
Manual, 1st edition 1954. Courtesy of Dave Wade, G4UGM.2.5
MB |
| Creed Model 75 Creed News article Creed Model 75 - Teleprinters I have known Creed Model 75 Brochure |
Article Reprinted from the Spring 1962,
Golden Jubilee, issue of Creed News 227kB Teleprinters I have known by the late Alan Hobbs, G8GOJ, produced for the BARTG Magazine Datacom. 539 kB Brochure from 1958, The completely new Creed Model Seventy-Five. 863kB |
| 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 Provisional Adjustment Instructions |
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 1.7 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 13.6 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. Model PR Seventy-Five Printing Reperforator Printing Reperforator Provisional Adjustment Instructions April 1961. 1.0 MB |
| Creed Model 444 Equipment
Manual Part 1: Introduction Part 2: Installation & Operating Part 3: Maintce & Lubrication Part 4: Adjustments Part 5: Dismantling & Reassy Part 6: Appendices Part 7: Parts List |
Technical Manual for the Creed Model 444
teleprinter, 1975, courtesy of Peter Nicol G8VXY. Part 1: Introduction 2.2MB Part 2 - Installation and Operation Instructions 836 kB Part 3 - Maintenance & Lubrication 2.5 MB Part 4 - Unit Adjustments 3.6 MB Part 5 - Dismantling & Assembling Instructions 6.8 MB Part 6 - Appendices A,B C & J 510 kB Part 7 - Parts List 6.8 MB |
| Creed Model 444 technical Specification Creed Model 444 - Teleprinters I have known Creed Model 444 Bibliography |
Creed publication summarising the technical
features of the Model 444 (GPO Teleprinter No 15) 1.1
MB Article by Alan Hobbs describing the history and development of the Creed 444. First published in the Telecommunications Heritage Journal. 456 kB 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 |
| Creed Morse Equipment Morse Keyboard Perforator (1940) Morse Keyboard Perforator (1945) Morse Keyboard Perforator Parts list Morse Reperforator (1934) Morse Reperforator (1945) Morse Printer Model 1-T (1939) |
Machines made for working high-speed Morse
using paper tape input and reception. Courtesy of Tony Duell
and Hugh Small. Keyboard perforator for preparing the tape Model 9, 1940 edition, 17pp 625 kB Same only 1945 edition, 32pp 1.4 MB Parts list for the Morse perforator, 26pp 2.8 MB and the Receiving reperforator to transfer signals received either off air or cable to paper tape. Model 7W 1934 Edition 1.6 MB 1945 Edition of above, Model 7W/3, with excellent photos courtesy Rodger Bean. Tape and page printer, Models 1-T & 1-P, June 1939 2.7MB |
| 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 |
| Envoy Electronic Dataprinter | Creed's foray into the world of computer
printing with the Envoy dataprinter. The Envoy was designed
to use the 7-bit ASCII character set. It used a type sleeve
print head like its predecessor the model 75 but was capable
of printing the entire 127 characters. Dated 1968. 12pp 2.1
MB |
| 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] |
| Facsimile Telegraphy | Post Office educational pamphlet from way
back in 1958 when FAX was still using rotating drum
transmission and thermal or chemical printing. Nonetheless
the basic principles are still sound. 2.1 MB |
| GNT High-speed Morse Transmitter | Great Northern Telegraph Works high-speed
Wheatstone type Morse transmitter capable of running at 13
to 250 words per minute on long-distance telegraph circuits.
Instruction book with diagrams and parts list. Courtesy of
Dave Brown in New Zealand. 1.1 MB |
| 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 Creed Teleprinters 1958 An Introduction to Creed Teleprinters 1966 |
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. 52pp 2.5 MB Later edition dated 1966 with only 16 pages. 3 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 |
| Memories of the Teleprinter Pioneering Period | Creed staff member R. Royan remembers the
days when teleprinters were a revolutionary advance in
communications. Reprinted from the Golden Jubilee edition of
Creed News in Spring 1962 295 kB |
| 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 |
| PO Engineering Instructions | Post Office Enginerring Instructions relating
to teleprinters. Courtesy of Kevin Dodman. This is a link to
the index script. The index files are A0000 and A0002. |
| Print out 15 -
Frederick Creed Centenary Edn |
A four-monthly digest of news from ITT-Creed.
December 1971 edition - celebrated the centenary of founder
Frederick Creed. Contains a biography tied in with the
history of the company up to his retirement in March 1930.
24pp 3.5 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 Handbook - 1982 | A collection of articles originally published
in the RTTY Journal in 1982. Includes: RTTY for Beginners,
Teletype stunt box modifications, Filters for RTTY. Courtesy
of Don Robert House. 8.4 MB |
| RTTY
The Easy Way - 5th Edition 457 kB RTTY The Easy Way - Early Edition [1.2 MB] |
A guide to setting up an amateur radio
teleprinter station. Fifth edition, edited by Alan Hobbs,
G8GOJ. Includes the ST-5 terminal unit. Published by BARTG
455kB The early edition was by Arthur Owen, G2FUD, and includes the DL6EQ valve-based terminal unit. |
| Siemens Teleprinter 1000 Manual | Siemens Teleprinter T1000. Technical
desrciption and explanation of the principles of operation.
Courtesy of Ronan Scaife. 7 MB |
| Subscribers' Station Equipment | Description of customer premises equipment
for the British Telex service. Includes circuit diagrams of
the local control unit. Extract from "Telex: a detailed
exposition of the telex system of the British Post Office"
by Roy Worth Barton, Pitman, 1968, ISBN 10:
0273421069 / ISBN 13: 9780273421061 479kB |
| Telegraph Concentrators | Post Office Technical Pamphlet for Workmen
B2. A telegraph concentrator is te equivalent of a telephone
switchboard allowing several telegraphs to be handled at a
single position. There is also a section on distribution of
standard time signals. 1.3 MB |
| Telegraph Distortion Measuring Set | ATE Telegraph Distortion Measuring Set Type
TDMS5BV. An amazing piece of equipment from 1961 stuffed
full of valves. Courtesy of Tony Duell 3.1 MB |
| Telegraph Test Coder | ATE Telegraph Test Coder Type TDA-10.
Generates a test message (eg "The Quick brown fox") for use
in the TDMS above. Mounted in a plug-in can the size of the
Carpenter relay used inside the TDMS above. Courtesy of Tony
Duell 800 kB |
| 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 |
| Teletype equipment for 5-level data communications | 8-page sales booklet from Teletype about the
variations of Model 28 and 32 machines with illustrations
and descriptions. Courtesy of Don Robert House 1.6 MB |
| 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 Model 33 Self-contained Keyboard Model 35 AW Set |
Product data sheet for Model 33 TWX, ASR, KSR
and RO sets. 856 kB Sales brochure for the self-contained keyboard, designed as a simpler method of parallel data entry for computer installations, bypassing the need for tape or punched card. 409 kB The Model 35 AW set was known to those in the Bell system as the Control-a-Matic, designed to automate message and data collection. A veritable beast of a machine! 488 kB All items courtesy of Don Robert House. |
| The ABCs of Teletype | A glossy 16-page booklet explaining how
Teletype equipment works and illustrating various models of
both 5-unit and 8-unit machine. There is a section
describing where in business Teletype equipment is being
used. Courtesy of Don Robert House. 2.9 MB |
| The Printing
Telegraph Reference Book |
A booklet prepared by Messrs Creed, probably
in the 1920s. It defines many terms used in telegraphy and
describes, with photographs, the various systems made by
Creed - Morse, Murray Multiplex, and Direct Start-Stop. 60pp
6.6 MB |
| 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 |
| WU
Tech Review Jan 1949 - Facsimile articles |
Western Union Technical Review Vol 3, No 1,
Jan 1949. Three articles about facsimile: 'Facsimile in
telegraphy'; 'Recording paper'; 'Facsimile transceiver' 2.1
MB |
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) and Don Robert House.
In addition Nick England has created an anthology of Teletype
manuals on his web site at:
www.navy-radio.com/manuals-ttycorp.htm
| AP
M15 & M20 Gear Change AP Field Maintenance Manual |
Associated Press Manuals, courtesy Jim
Haynes.: Handbook showing in pictures how to change the gears on Models M15 and M20. 1.5 MB Field maintenance manual for Models M15 and M20. [Original badly faded] 2.9 MB |
| 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 |
| 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 |
| 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 |
| 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 |
| Data
Set 101C |
Bell System Practice for the Data Set 101C.
1.1 MB |
| 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 |
| 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 |
| Model
32 Manuals |
A complete scan of the Model 32 manuals
courtesy of John Rowlands. This is a link to the index page. |
| 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 |
| 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 |
| Tape Winder Description |
BSP Teletype Tape winder description.
Courtesy of Steve Cichorsky. 260 kB |
| 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