B Block
B Block






Photo: B Block © LSA Aug 2015.
| EXIT | B Block | Bombe Rebuild |
| Blocks: A | B | C | D | E | F | G | H | National Radio Centre | Location |

Overview
B Block included offices known as the Testery, after the man in charge Ralph Tester, which were set up to exploit breakthroughs into the Lorenz cipher.

From about 1953, B Block was part of a Teacher Training College.  In 1977 the building had been taken over by the Civil Aviation Authority (CAA). Following the departure of the CAA from the site in 1993 the building became the responsibility of Bletchley Park Trust.

B Block was refurbished in 2004 and on 10th June it was opened by HRH The Duke of Kent as 'The Bletchley Park Story'.

The reception and shop moved to the restored C Block in 2014. The Bombe Rebuild moved out of B Block to H Block [TNMoC] in 2018.

Grade II Listing

B Block was Grade II listed on 19th November 2004.

B Block  
B Block
B Block was reception and the shop until 2014 when the restored C Block became the visitor centre.




Block B - The Bletchley Park Story © LSA June 2012.
Bombe Rebuild  
B Block 2007
The side of B Block which faces towards C Block. On the right is a temporary hut which in 2010 was replaced by the new home of the Radio Society of Great Britain (RSGB), which on 25th Feb 2012 opened as the National Radio Centre.




B Block © LSA July 2007.
National Radio Centre   
National Radio Centre
At the side of B Block is the newly opened National Radio Centre.

See  www.nationalradiocentre.com/ for more details.
The National Radio Centre © LSA June 2012.
Milton Keynes Amateur Radio Society  
B Block
B Block home of the Milton Keynes Amateur Radio Society. 

See www.mkars.org.uk/ for more details.
B Block showing the aerial of the MKARS above the plant room © LSA July 2007.
Location  
B Block
How it was: Screenshot showing location within Park.





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