Volgens mijn informatie zijn CV-genummerde buizen ook onderhevig aan specifieke (Engelse) militaire specificaties, vandaar...
Helaas komt "litereren" niet in van Dale voor, maar bovenstaande tekst is een vertaling middels Google translate. Meer kan ik niet geven. De originele tekst is te vinden op de Russische Wikipedia site.
Mocht je de ontbrekende Cyrillische tekst willen, dan kan ik hem wel in een Word document aan je mail-address dorsturen.
Hier nog wat nieuwe informatie, direct uit het "GOS"
Yes and no. The OTK was applicable to non-military goods as well, that's correct. I don't really know what the _numbers_ of OTK stams mean, however I am sure that they have nothing to do with product identifications. I guess that they rather identify some per-factory entities, most probably a specific QA engineer who performed the tests, or a specific production batch.
I am quite too young (37) to have personal experience with Soviet industry, however I do remember from my childhood that the OTK stamps were virtually on every product that was sold in the normal civil stores. Therefore, there is nothing special about something being stamped by OTK, because I guess that every Soviet factory and plant had (or perhaps they were required to have) an OTK department that controlled the quality of goods leaving to the market; in other words, OTK does not mean anything like "of special, higher quality", "selected", "targeted at specific application".
There was however another entity in the USSR, named "[Cyrillische tekst]", the "Quality Mark". It was (I think) applicable only to civil market, and this sign meant that the product that carried it passed more stringent quality tests than usual . It's curious that I don't remember having seen this mark on any Soviet tubes (and I've seen quite a few of them), but it's probably just my bad memory.
Ik zat dus toch enigsins scheef met mijn verklaring.
Dmitri Vorobiev is een Rus, die zich met buizen en hun historie bezighoudt