Analysis of information sources in references of the Wikipedia article "Robik" in English language version.
1991 Robik [...] RGB/HERCULES/EGA-Video.
Черкаський Робік.[Robik from Cherkasy.]
ПКМ 1Б ("PKM 1B") is type of fairly low profile reed switch, whose design may have been inspired by RAFI's keyboard switches (especially as the keycap mount is very similar).
There was the Baltic, the Kvorum, the Leningrad, the Magik, the Master, the Robik, the.... Oh, alright, far too many to mention.
