© Knutsford Promenades - LogoP R N Kellar and the Bombe

The Courthouse Hotel, Toft Road, Knutsford, Cheshire, WA16 0PB

PAUL KELLAR MBE is a trustee of the Turing-Welchman Bombe Rebuild Trust that rebuilt, maintains and runs the famous code-breaking machine.

The British Turing/Welchman Bombe was manufactured by the British Tabulating Machine Company in Letchworth, Hertfordshire, England. Immediately after VE Day, to prevent the world knowing how successful British codebreaking had become, Winston Churchill ordered that 210 machines at Bletchley be broken up. Their blueprints were also destroyed.

The Bombe Restoration Project set out to painstakingly make an exact, working replica. Based on the few remaining diagrams, it took a decade to create. The replica runs at Bletchley Park and has been proven correct in numerous tests carried out by the modern-day GCHQ.

Until his retirement, Paul was research director of the digital television equipment maker Quantel, and has at least 33 patents in his name.

The Bombe is rather too heavy to transport outside the huts of Bletchley Park but, at this event, Paul will demonstrate the Checking Machine, a vital part of the Bombe. He will also talk extensively about Enigma and how its codes were broken.

Opening Times

  • Friday 8 September: 14:00-15:00

Booking Details

No booking required


This keynote talk will take place in The Moneypenny Suite.