Premium Vacuum Tubes – Complete 3 Set - long life NOS USSR military spec 6N1(2) direct drop in Upgrade for stock Chinese 6N1 amplifiers such as some Fatman Models. Fully Bench tested - No leaks or shorts guaranteed, Plus 6E1 (1) Magic Eye *Always check for the correct vacuum tube in your Manufacturer’s User Manual. Fitting the wrong tubes can be dangerous, can damage your amplifier and can invalidate your 30-Day Warranty 6N1 Russian Military Manufacture, USSR c.1970/80s Life expectancy: 5000hrs. A very good sound Upgrade! Expect improved tighter and deeper bass, open midrange and detailed treble with better timing and overall cohesion. Free BS310 Standard heat resistant silicone anti-vibration damper. Also available in matched pairs – available in our shop. Full fitting instructions included.
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