H Block

Today, H Block is home to The National Museum of Computing (TNMoC) and the Colossus and Tunny rebuilds.

Photo: H Block, home of TNMoC © LSA Aug 2015.

| Blocks: A | B | C | D | E | F | G | H | Location |

Overview

H Block has been instrumental to Bletchley Park becoming the very centre of the history of computing, with The National Museum of Computing creating the focus.

H Block was built as late as 1944, as an annexe to the 'Newmanry' which was F Block. Originally there were 3 Colossus machines housed in H Block, but later 3 were transferred from F Block to make a total of 6.

After the war, H Block was used for Post Office Training.

Grade II Listing

H Block was Grade II listed on 17th December 2004.

H Block
	The long corridor of H Block forms the large exhibition area for TNMoC (The National Museum of Computing) Photo: H Block, home of TNMoC (The National Museum of Computing) © LSA June 2012.
	Separate ticketing for BPT (Bletchley Park Trust) and TNMoC (The National Museum of Computing) unfortunately means the Park is split into a north/south divide. Photo: 'Checkpoint Charlie' one of the gates which divide the Park © LSA August 2015.
TNMoC
	Marvel at the Mainframe computers of not so very long ago... and many other exhibits. Photo: Disc drives and equipment of the ICL 2966 © LSA June 2012.
The Bombe Rebuild
	The Turing Welchman Bombe Rebuild was re-located into H Block in 2018. Photo: The Turing Welchman Bombe Rebuild © LSA June 2019.
The Colossus Rebuild
	The Colossus Rebuild is situated in the very room within H Block that Colossus 9 once stood. Photo: Colossus (Rebuild) © LSA June 2012.
The Tunny Gallery
	The Tunny Gallery wonderfully recreates the bygone era of GPO equipment practices. See the teleprinter radio station, the Tunny Rebuild and Heath Robinson... Photo: Tunny Gallery © LSA June 2012.
Location
	How it was: Screenshot showing location within Park. Map/image © 2007 Google and Infoterra Ltd & Bluesky, The GeoInformation Group.

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