Long-wavelength spectrometer from the Infrared Space Observatory (identical spare model) 1990-1993 (spare); 1995 (original launched)
Large clock, designed to hang from the ceiling, with a digital display. The time is set and kept accurate using a Global Positioning System (GPS) receiver which receives time signals from GPS satellites, 1998. Large Clock, Designed to Hang from the Ceiling 1998
Operating machine used for working replica of Baird 'Tin Box' televisor (original built 1929) and Mihaly telehor, made by Denis Asseman c 2000. Operating machine for replica televisor models 1996-2006
Circuit unit for electric gas discharge tube, by AEC Electric Fencing Limited, Newton Abbot, Devon, England, 1955-1965 Circuit unit for electric gas discharge tube 1955-1965