AVIA 261921-1991Ministry of Aviation, predecessors and successors: Royal Radar Establishment (later Royal Signals and Radar Establishment) and predecessors: Reports and Memoranda
This series consists of reports, memoranda and technical notes prepared by the Royal Radar Establishment (RRE) (from 1976, the Royal Signals and Radar Establishment (RSRE)), and by its predecessors the Air Defence Research and Development Establishment (ADRDE), the Radar Research and Development Establishment (RRDE) and the Telecommunications Research Establishment.
No records of the Services Valve Life Testing Establishment 1936-1952 appear to have survived