Tony Sale’s web site http://www.codesandciphers.org.uk/ includes:
A description of the Colossus MK 2 Rebuild
Video Pods of Tony Sale's talks: Tunny Room Talk and Colossus Room Talk
"Anoraks Corner”: Break Enigma!!!and Lorenz too!!! (this is for the Nerds)
Original World War II Documents
etc. Read More...

For those of you booked into the Bletchley Park tour at EME2012, I thought this might whet your appetite for the real thing... Read More...