He joined the
Board of Invention and Research in October 1915, shortly after its creation, to help with the UK war effort against Germany. Wood served the Admiralty in Aberdour in 1915 establishing the
Admiralty Experimental Station that later moved to Parkstone Quay and Shandon as head of the experimental station he worked on a variety of acoustics projects. He joined the
Admiralty Research Laboratory in
Teddington when this body was formed in 1921, where he eventually became Deputy Superintendent. He was Deputy Superintendent of H M Signal School, Chief Scientist of H M Mining School and Deputy Director of Physical Research for the Royal Scientific Civil Service. Following the ideas of
Hans Hollmann, he proposed in 1937 a system with "six or eight small holes" drilled in a metal block, differing from the later production
cavity magnetrons only in the aspects of vacuum sealing. However, his idea was rejected by the Navy, who said their valve department was far too busy to consider it. Though he formally retired from the Admiralty Research Laboratories in 1950, he returned to continue his work on underwater sound. He spend a year at the US Naval Electronics Laboratory shortly before his death. In 1939 A B Wood was awarded the title Officer of the
Order of the British Empire, in recognition of his work on dismantling a German
magnetic mine at the start of the
Second World War. ==Awards==