Where do most of the world’s KT-150 tubes come from? And where did all the semi-reasonably priced (if compared to alternative) KT-150 tubes come from?
One large altercation later and those tubes aren’t being imported anymore.
With Russia doing its thing and China redirecting much of its attention to newer tech development / fabrication, the world supply of current production power tubes is quite a bit lower than it was a few years ago.
KT-150 now = NOS unless perhaps you’re buying the costly version produced outside Russia.
I’ve zero interest in anyone making this political - please do not.
But so many of the power tubes that are unhealthy to manufacture come from two nations that are not up to makin’ em like they used to; that probably shouldn’t be something out-of-sight/out-of-mind for the audiophile who likes using tubes. Turn power tubes off when not in use.