IEVT—Inštitut za Elektroniko in Vakuumsko Tehniko (Institute for Electronics and Vacuum Technology)—was a Yugoslavian organisation based in Ljubljana. IEVT was still around following the breakup of Yugoslavia.
A group of IEVT staff founded Tipro, somewhere around 1985. Initially Tipro fell under IEVT’s umbrella, as can be seen on the IEVT switches and keycaps brochure that was amended to include both IEVT’s and Tipro’s logos. Following Slovenia’s indepedence, Tipro was registered afresh as a conventional business.
Some details about their switches can be observed in an IEVT switch and keycaps flyer. This brochure was retained after Tipro was formed.
- Series TC hermetically-sealed switches
- Series TX, listed in the Galaksija parts list but not confirmed to be observed; possibly PCB-mount low profile
- Series TY terminal keyboard switches
- Series TZ low-profile switches
IEVT also produced at least two keycap series, Y and Z.