• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Western Electric New 300B made in USA 2018

https://www.diyaudio.com/forums/introdYou can always search for unicorn or cheap China- fi tubes, but understand build new factory plant in Roseville is a huge million$ investment. Give salary to local engineers and workers in the US cost serious money. Western Electric does spend a fortune to bring back high quality vacuum tube production in North America. 40 000 hours of life span and every 300B is individually tested and curve traced no need to hope about reliability. it's verified by professionals. After all anyways You make choice! Enjoy :)uctions/331407-hi-post5638060.html#post5638060
 

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