Wow, old USSR color codes; there's something I knew nothing about! Do you know anything else about old Soviet wiring practices?
My one experience of Russian color codes was with an imported USSR-made transistor radio in the 1970s. The wires to the battery compartment were pink and blue; I assumed that the blue would be negative and the pink positive.
Wrong! (Although I realize now that I shouldn't have jumped to conclusions, I can only plead that at the time I was only about 10 years old and had never come across such a strange color code.)
