03-22-2017, 03:02 AM
Mike;
I've been looking into the Chinese radio industry, at least from the tube era, and it seems that they either used North American style tube types or Soviet tube types. What I don't remember is whether they used Cyrillic letters on some of the Soviet types or all. The tube shown looks like it has a number 75 on it as well, maybe a manufacturing date like 1975, followed by XI, 11th month maybe? An interesting arrangement of the two triodes, cathode follower I think. Is that a 6SN7 or a 6SL7?
Regards
Arran
I've been looking into the Chinese radio industry, at least from the tube era, and it seems that they either used North American style tube types or Soviet tube types. What I don't remember is whether they used Cyrillic letters on some of the Soviet types or all. The tube shown looks like it has a number 75 on it as well, maybe a manufacturing date like 1975, followed by XI, 11th month maybe? An interesting arrangement of the two triodes, cathode follower I think. Is that a 6SN7 or a 6SL7?
Regards
Arran
