Contact Us

Transdiffusion Broadcasting System
London WC1N 3XX.
United Kingdom
Email us

Reuse and syndication

Our text (that is, not the images, videos or soundclips on this site, referred to here as "multimedia") is licensed under the Creative Commons Attribution 3.0 Unported. This allows you to use the text in any way for any purpose, providing you:

  1. Link back to
  2. credit the original author of the text

If you want to use the text and multimedia then you can use both under the Creative Commons Attribution-No Derivative Works 3.0 Unported. This means you can use the text and multimedia for any purpose, providing you:

  1. Use the text and the multimedia together without changing either (other than to resize)
  2. Link back to
  3. credit the original author of the text


The Transdiffusion Broadcasting System and its websites and affiliated websites acknowledge all copyrights. All efforts have been made to correctly attribute copyright on the material on these websites. Please contact us if such attribution is incorrect or absent and we will rectify the situation.

The material on the Transdiffusion and affiliated sites from the Electromusications archive of broadcasting presentation is in the copyright of the original holder or their successor organisations. All material is provided for educational and instructional use on a non-profit making basis only. Transdiffusion provides this material as a representation of the original and not as the original itself.

All material is taken from one or more of the Transdiffusion Archives or other private collections and is therefore owned by the appropriate archivist. The original media are also owned by the original archivist.

The Transdiffusion group of websites report on and document current and historical events and developments in the world of broadcasting. As such we regard, and have been duly advised, that our use of materials lawfully recorded or captured off-air or otherwise made available to us, or created to represent such materials, constitutes "fair dealing" under UK law, specifically the Copyright Designs and Patents Act 1988 and associated Statutory Instruments, as they are presented for educational purposes such as research or private study, for reporting current or historical events, and for criticism or review, on a non-commercial, not-for-profit basis. (see "Guidelines for Fair Dealing in an Electronic Environment", Joint Information Systems Committee and Publishers Association 1998.) If you regard any elements present on any of the sites under our direct control as exceeding such guidelines, please let us know and we will take appropriate action.

The Transdiffusion Broadcasting System has asserted its moral right to be identified as the author of this work in accordance with the Copyright, Design and Patents Act 1988.

Compilation copyright on all pages is held by Transdiffusion Broadcasting System.

All rights reserved. No part of this website may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior permission of the copyright owner, unless to be so used in a state-recognised educational environment or course.

'Transdiffusion', the 'Transdiffusion Broadcasting System', the 'National Radiotape Network', 'Transdiffusion Networking Association', 'Transdiffusion Radiotape Network', 'Associated-Transdiffusion' and the Transdiffusion symbol are © 1964 Christopher Bowden-Smith.

'Electromusications' is © 1968 Michael Gibberd and the Transdiffusion Broadcasting System

The Transdiffusion 'triangular' device is © 1982 Jonathan Tarrant and the Transdiffusion Broadcasting System with later design work by Mike Brown

The Southern Television logos are the property of Nic Ayling and are used with permission.

TV-am archive material is the property of Moving Image and is used with permission.


As part of this, we believe that all our contributors and readers are entitled to privacy as they use our pages.

Email We do not collect email addresses in anyway, except for our voluntary mailing lists, all of which give clear instructions on unsubscribing and require positive confirmation that you wish to join. This means that entering an email address into a web form on our sites, or subscribing to a list via email will provoke a further email that requests confirmation that you wish to join. No one can sign you up for one of our lists without your permission, unless they have access to your computer.

Advertising None of our sites feature advertising that we benefit from in anyway. Third Party sites we link to, or reference dynamic content from, may contain advertising.

Cookies are a method by which a small text file (usually readable with a text editor) is stored on your computer in order to identify you to the web server at a later date. We may do that occasionally, to record prevent you having to log-in repeatedly, for instance. It is possible to turn cookies off completely, and you may wish to do this. However, you will lose functionality of certain dynamic content on Transdiffusion sites.

IP Addresses The internet works by giving each server and user a unique number - referred to as an IP Address - either permanently or on an ad-hoc basis. Our servers use IP Addresses in 3 ways: to provide the pages your web browser has requested; emails (and web form entries) sent to us generally record automatically the IP Address of the sender; our servers the IP Addresses of those who visit in case of abuse, but we don't link the address with specific users unless we detect abuse in the first place.

Web browsers Your web browser (eg Internet Explorer, Firefox, Mozilla, Opera etc) reports back certain information to our servers. This information is pretty anonymous - browser type, screen resolution, operating system - and this anonymous data is used by us to make sure we're not producing pages that the vast majority can't read.

Your browser also sends us slightly more specific information. This includes the page that referred you to us, any terms you used in a search engine to find us and which search engine you used, and which pages you visited whilst you were touring our sites (though not where you went afterwards, or unlinked sites you visited beforehand). We use this information to track the popularity of articles on our sites, the most popular search engines and what people are searching for. This information, although more specific, is still anonymous. We can't, and, frankly, don't want to identify you personally.

About Transdiffusion


Email Newsletter

Get all our updates in your inbox - every time there's news to tell. Just enter your email address and select "Subscribe". Or if you no longer want to receive our mailings, enter your email and select "Unsubscribe"

The Index


Transdiffusion's repository of the ephemera of life: postcards, photographs, railwayana, stamps and leaflets from the past

Visit now ⇒

Transdiffusion Navigation

April 2014

Transdiffusion Broadcasting System

This web page lives at: