This page gives access to a short
description of nearly every "coded and registered" design produced by the BBC
between 1957 and 1991 (over 7000 !).
Equipment Register 1992
Designs and Coded Equipment 1963 - Volume 2: Components
Coded Equipment Register 1987 - see below.
Coded Equipment 1981 (Obsolescent, cancelled and withdrawn equipment) -
Documentation Cross Reference 1992.
Documentation Cross Reference 1988.
Sorry, the books below are in a cumbersome format, but an old scanner was
used and the books contain nearly 800 pages compared with nearly 80 pages
for the 1992 book above.
The information below was scanned from two paper volumes provided by the BBC
and the result is 788 files in html format, one page per file, occupying a total of about
8MB. The transfer was done using a scanner with automatic sheet
feeding, together with software which compiled and linked the files.
This method minimised both the effort needed and the resultant file size.
The optical character recognition seems to have worked quite well, but the
pages have not been thoroughly checked!
It was not feasible to scan the entire volumes in one session, so they
are split up as shown below. Each block of pages is listed as Page 1,
Page 2... etc., and the page displayed is this number plus the base number
(e.g. 200 for Pages 201 to 300). Click Up, at the top of the frame
containing the list of pages, in order to return to this page.
List of code groups This list is from Part III
below, but it is relevant to Part I as well.
Part II - This is not available, but most* of the codes are covered by the 1981 and 1987 documents (above and
The arrangement below was set up in about 2006 and it is probably no
longer in place.
Provision of Circuit Diagrams
The BBC has kindly established an arrangement whereby circuit
diagrams of old equipment can be provided. This only relates to "BBC
Coded Equipment" that was designed in-house (mainly by Designs
Department) and the Terms & Conditions are given below. The information
will be provided on PDF files, in response to requests regarding
individual items. If possible, the Equipment Code should be given (e.g.
AM7/11). This web site has all of the
EDI Sheets that were
produced and RD&CE listings (see below), so this might help in
identifying specific items of equipment. It is likely that most requests
will emerge as a result of ex-BBC coded equipment being acquired and
this probably doesn't happen very often, but we need to make sure that
the BBC is not inundated. Please go to
this BBC Research
page as it contains links to various documents and an email address
for requesting documents which are not yet available.
Terms & Conditions: "Any intellectual property rights in these
[circuit diagrams] are owned/licensed by the BBC. They are made
available for private study use only and on the understanding that no
warranties are provided by the BBC (in relation to third party
intellectual property rights or otherwise) and that all liabilities
relating to the individual's use of this material rest with the
individual and not with the BBC".
* I'm a bit put out that one of my designs is missing :-)
I designed the GE7/1 in 1976 and
it became obsolete about 10 years later (due to the start of
NICAM distribution), so it missed
all of the volumes above. There are probably other designs that did