These are beautiful sounding premium 6SN7. Tube pins are gold plated for good connection with tube sockets. TJ 6SN7 is compatible with standard 6SN7 tube. These 6SN7 tubes are made by TJ Fullmusic, and then tested in Hong Kong by DIY Hifi Supply with their own tube tester. Tubes are tested by curve tracer to reveal full characteristics of each individual tube for better QC and more accurate matching. Warranty is 12 months from the date of delivery. Defective tubes must be returned to DIY Hifi Supply in Hong Kong for warranty replacement.
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2 weeks ago
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