International Conference on "Electric Railway Systems for a New Century" (1987 : London,England), Great Britain. Institution of Electrical Engineers

International Conference on Power System Monitoring and Control (2nd : 1986 : Univ. of Durham, United Kingdom), Institution of Electrical Engineers (Great Britain)

International Conference on the ISDN and its Impact on Information Technology (1985 : London), Institution of Electrical Engineers (Great Britain)

European Conference on Electronic Design Automation (1984 : University of Warwick), Institution of Electrical Engineers (Great Britain)

International Conference on Railways in the Electronic Age (1981 : London), Great Britain. Institution of Electrical Engineers

International Broadcasting Convention (1980 : Brighton), Institution of Electrical Engineers (Great Britain)

European Conference on Circuit Theory and Design (1974 : London), Institution of Electrical Engineers (Great Britain)

International Conference on Metering , Apparatus and Tariffs for Electricity Supply, Institution of Electrical Engineers (Great Britain)

International Symposium on Management and Economics in the Electronics Industry (1970 : University of Edinburgh), Institution of Electrical Engineers (Great Britain)

International Symposium on Management and Economics in the Electronics Industry (1970 : University of Edinburgh), Institution of Electrical Engineers (Great Britain)

Conference on Electronics Design (1968 : University of Cambridge), Institution of Electrical Engineers (Great Britain)

Conference on Tropospheric Wave Propagation (1968 : London), Institution of Electrical Engineers (Great Britain)