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RE: OK I gotta ask. Why no more 6p3se / 6n3ce for sale other than on Ebay?

Posted by twystd on May 12, 2017 at 10:59:03:
It was several years ago when we did this test, and unfortunately I don't remember the factory. The reason I recommended pre Gorby tubes is that I saw a thread on the DIY forum between two Russians discussing the folly of paying the big bucks for later production 6n30p-drs.

According to them, the post Gorby era tubes were inferior. They said that during the glasnost era that tight military control was shifted to the civilian sector, and that profitability trumped quality. They also claimed that tubes during that time were considered old technology, and they closed and sold for scrap the factories that made special alloys and chemical coatings used only in the manufacturing of vacuum tubes. They also said that there were certain materials that were used during the Soviet era that wouldn't be used in the west because of the hazards to worker safety and the environment. The Soviets weren't sensitive to these matters, but these issues were more of a factor during the Gorbachev era.

I don't know for a fact that what they were saying was true, but they sure sounded like they knew what they were talking about. They certainly would have been in the position to know about such things.

I have bought many hundreds of Russian tubes, and seem to prefer the earlier production tubes. In the last several years, I've made a conscious effort to only buy tubes from the 60s and 70s, just in case those claims are accurate.

twystd