73 Anti-Aircraft Brigade RA(TA) was formed in October 1937 by the conversion of part of 62 (North Midland) Field Brigade RA(TA). It was re-designated as 73 Anti-Aircraft Regiment RA(TA) in January 1939. In June 1940 it was re-designated as Heavy Anti-Aircraft. The Regiment was placed in suspended animation in March 1945 and was reconstituted as 473 (North Midland) Heavy Anti-Aircraft Regiment RA(TA) in January 1947.
| Sep 39 | 34 Anti-Aircraft Brigade, 4 Anti-Aircraft Division | Coventry, Warwickshire, UK |
| Nov 39 | 12 Anti-Aircraft Brigade | Chouilly, France |
| Jun 40 | 12 Anti-Aircraft Brigade | Saint-Nazaire, France |
| Jun 40 | Home Forces | Aberporth, Dyfed, UK |
| Jul 40 | 43 Anti-Aircraft Brigade, 7 Anti-Aircraft Division | Middlesbrough, Yorkshire, UK |
| May 41 | 42 Anti-Aircraft Brigade, 12 Anti-Aircraft Division | Clydeside, Glasgow, UK |
| Aug 41 | War Office Reserve | UK |
| Apr 42 | Middle East Forces | Egypt |
| Feb 43 | 209 & 210 Batteries “diluted“with African Pioneer Corps men |
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| Mar 43 | Middle East Forces | Alexandria, Egypt |
| Jun 43 | 18 Anti-Aircraft Brigade, 8 Army | Suez, Egypt |
| Jul 43 | 62 Anti-Aircraft Brigade | Syracuse, Sicily |
| Jan 44 | 73 Anti-Aircraft Brigade | Augusta, Sicily |
| Oct 44 | 66 Anti-Aircraft Brigade | San Stefano, Italy |
| Jan 45 | 62 Anti-Aircraft Brigade | Gothic Line, Italy |
| Mar 45 | Suspended animation |
Batteries
| Sep 39 | 209 (Wolverhampton), 210 (West Bromwich), 311 |
