- 1Memorandum On Chain-Home (C.H.) Transmitting Equipment (YA1996.1735/MS0531/19)
1935-1946, item - 2C.H. (Chain) Transmitters (YA1996.1735/MS0531/20)
1946, item - 3Trigatron and Triggered Spark Gap (YA1996.1735/MS0531/23)
1946 November 11th-1946 November 21st, file - 4War Inventions Award - Reports (YA1996.1735/MS0531/24)
1928 December 13th-1951 October 26th, file - 5The Work of the Metropolitan-Vickers Research Department on Radio Location Prior to 1939 (YA1996.1735/MS0531/26)
1944 March 1st, item - 6Trigatron and Triggered Spark Gap (YA1996.1735/MS0531/30)
1946 November 11th-1946 November 21st, file