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"This web site is all about railway signalling. Its primary purpose is to describe the principles behind railway signalling in Great Britain, but some coverage of signalling around the world will also be found." With copious pictures.
to mechanica railway retrotech safety signalling ... on 07 September 2013
The history of Project Whirlwind, with some interesting technical details.
to history ibm mit retrocomputing retrotech sage whirlwind ... on 07 June 2013
Website for Mike Horne author and researcher - Contents
Railway history. The book on the history of London Underground's telecommunications is particularly interesting.
to history london rail retrotech telecom train underground ... on 28 May 2013
Stokers and pokers (Open Library)
"or, The London and North Western Railway, the electric telegraph and the Railway Clearing House". An amusing 1849 memoir on the early railways.
Homebrew wax cylinder players. Some very neat engineering.
to audio cylinder electronics mechanica record recording retrotech turntable ... on 26 February 2013
Index of ftp://ftp.wideweb.com/GroupBell/
Evan Doorbell's phreaking (and general phone sound collecting) recordings. Hours of listening, if you're in the right frame of mind.
to phone phreaking retrotech telecom ... on 11 February 2013
New home of projects like Das DereLicht.
to amateur electronics radio retrotech surplus ... on 25 November 2012
Make your own X-ray machine, amongst a wide selection of other terrifying mad-science projects.
to electronics insanity photography retrotech xray ... on 22 October 2012
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tasty by Adam Sampson.