project to produce an add-on floppy disk drive for the ZX Spectrum. Tyche This codename was assigned to a QL follow-on project running from 1984 to 1986. Among the features associated with Tyche were increased RAM capacity, internal floppy disk drives, the Psion Xchange application suite on ROM, and possibly the GEM GUI. Janus This name has been associated with a design concept for a "Super QL" based on wafer-scale integration technology. Proteus This was rumoured to be a hypothetical portable version of the QL similar to Pandora. Sinclair X-1 In November 2010 Sinclair told The Guardian newspaper that he was working on a new prototype electric vehicle, called the X-1, to be launched within a year. "Technology has moved on quite a bit, there are new batteries available and I just rethought the thing. The C5 was OK, but I think we can do a better job now." The two-wheel X-1 was to have been available in July 2011 at the price of £595, but failed to reach production. See also Sinclair BASIC Sinclair C5 Sinclair Executive Sinclair Radionics Sinclair Scientific Sinclair Vehicles Timex Sinclair TV80 Sinclair President References Further reading Adamson, Ian; Kennedy, Richard (1986). Sinclair and the "Sunrise" Technology. London: Penguin Books. 224 pp. . Dale, Rodney (1985). The Sinclair Story. London: Duckworth. 184 pp. . Tedeschi, Enrico (1986). Sinclair Archaeology: The Complete Photo Guide to Collectable Models. Portslade: Hove Books. 130 pp. . External links Sinclair Nostalgia Products The Sinclair Story book extract Planet Sinclair 'Pocket TVs failed before. What's changed?', BBC News Magazine article ZX81 Online Museum www.1000bit.net, 1000BiT Sinclair's section Defunct computer companies of the United Kingdom Electronics companies of the United Kingdom Defunct software companies of the United Kingdom Electronics companies established in 1973 Computer companies established in 1973 Companies based in Cambridge Defunct companies based in London British companies established in 1973 1986 mergers and acquisitions