A whole lot of xenophobia in this thread mixed with a fair amount of racism. The complaint about a broken tube made me laugh though. People do know tubes are made of glass? Never pull a tube from the glass envelope. Grab the base.
Sophia Electric is a American company from the beginning that was funded by a Chinese investor. Not sure whether he is an immigrant of not but the products are made in USA in Virginia. Some things are manufactured in China, just like products made by Marantz, and a whole host of other "American" products. They make very good triode tubes. That I can attest to. Good luck starting a vacuum tube manufacturing business on US soil.
