@fleschler
Well, that is to be expected, I think. Vacuum tubes were in their day essential to the consumer electronics industry as well as to the defense industry. For whom would it be profitable today to carry on such aggressive research into a technology all but obsolete outside of audiophilia? The Russians carried on a bit longer than the rest of the world due to dependency on their aging equipment. I have, incidentally, worked as an engineer on Russian military equipment. It was extremely robust and reflected some of highest levels of engineering work I have ever seen. I just re-tubed by preamp with brand new Russian tubes and I think they sound pretty good!
Well, that is to be expected, I think. Vacuum tubes were in their day essential to the consumer electronics industry as well as to the defense industry. For whom would it be profitable today to carry on such aggressive research into a technology all but obsolete outside of audiophilia? The Russians carried on a bit longer than the rest of the world due to dependency on their aging equipment. I have, incidentally, worked as an engineer on Russian military equipment. It was extremely robust and reflected some of highest levels of engineering work I have ever seen. I just re-tubed by preamp with brand new Russian tubes and I think they sound pretty good!