Editing Hi-Tek Dovetail Series (section)

==History==
Dragon Data's Pippin, their 1981 prototype machine, used Hi-Tek High Profile switches with a "waffle frame" grid.<ref name="Pippin" /> Photographs of production Dragon 32 and Dragon by Tano computers—the former being introduced in 1982—all show dovetail base assemblies. It is likely that this change occurred at the beginning of the production manufacturing run in 1982, as despite the earliest dovetail patent found to date being filed in 1983, no waffle frame keyboards have been found in production machines, including low serial number examples.

The dovetail base assembly used in the Toptronics Sinclair ZX81 keyboard is marked with the original 1972 patent for the High Profile switches.<ref name="Toptronics" />

Lydon Davies, formerly of Dragon Data, is quoted as having said that the Hi-Tek keyboards fitted to Dragon computers cost £10 each.<ref name="L_Davies" />