Recollections of BBC engineering from 1922 to 1997
The British Broadcasting Corporation
web site is: www.bbc.co.uk
Information Exchange and Contact
|This page is intended to help people who are seeking or offering assistance with matters relating to BBC engineering.||To contact the originator of an item below, click the link in the relevant section. I will forward your email to the intended recipient.||Let me know if you would like an entry on the page.
Please return from time to time.
|17 May 2021||AM4/507||Brian Summers from the MCR21 project would appreciate donations of AM4/507 distribution amplifiers.|
|5 Jan 2021||Bournemouth 6BM||
Donachie is researching the early BBC station 6BM located in
Bournemouth (1923-1939) and is very interested in the following
|5 Jul 2020||ED Specs||
would appreciate copies of the following Equipment Department
ED112 Cables & Wires, General Specification
ED120 Technical Equipment, General Specification
ED121 General Conditions of Contract
ED138 Anodised Finish (i.e. for metallic materials treatments on alu. housings- Iím sure like most companies this is going to closely resemble DEF STAN 03-24/25 and the BS of the time)
ED139 Requirements for the Manufacture of Printed Wiring Boards (includes the PCB Photostat process)
ED141 Requirements for the Gold Plating of Edge Contacts on Printed Wiring Boards
ED143 Wiring Techniques Utilising Solderless Wrapped Joints
ED155 Requirements for solder Resist and Component Placement Legends on Printed Wiring Boards
ED2200 Equipment Department Finishes, General Specification Series (I believe this doc has the BBC 'Grey' electronic equpt. spec in it)
ED3002 Insulating Tubing and Sleeving
|15 Jun 2020||Uher Report Monitor - speed mods||
David McMahon writes: "Does anybody have the detailed
information on how to convert a BBC modified single speed (7.5 ips)
Uher Report Monitor portable tape recorder back to a standard 4 speed
I know roughly the main areas:-
1. Speed change control shaft (cut off) to be re-instated, how (just new shaft or new speed control), where can shaft/control/control knob be obtained ?
2. Speed control micro switches rewiring (K5/K6/K8).
3. Double Start micro switch (K4) back to single switch.
4. Double Rewind micro switch (K7) back to single switch.
5. Cut track on main circuit board to be re-instated.
Note - the document on various web sites detailing the BBC modifications to the Uher Report IC & L models does not appear to touch upon the fixed speed modifications."
|30 Mar 2020||DD Report from 1949 - Swarf removal||
John Lancaster is desperately trying to find a BBC Designs Report.
Number I.5 (49). It is in relation to swarf removal on disc recording
systems and is referenced in
Technical Instruction R4, page 22.
Any help at all would be greatly appreciated.
|See the top of this page for links to items that have expired (after one year) or been resolved|