Results

Plessey (British Telecommunications Research) Technical Society

'The History of Rugby Radio Station': British Telecom Radio Engineering Services

BT301A Minimole (British Telecom tester)

Avometer 2001 (used by British Telecom as MMF1A)

Correspondence

Reports from other institutions

Personal notes

Publications

Reports and company information

IG reports

Correspondence

Correspondence

Minutes of meeting with British Telecom

Reports

Press cuttings