I'm surprised that vacuum tubes are still being manufactured! I know people collect them from going to estate auctions.
There are still quite a few compamies making them in China and the countries of the former USSR.
Even a few Western countries, including the US.
Non NOS audio type tubes are ususally Russian or Chinese, hopefully mil-spec. ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************
