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6SN7 6H8C National VINTAGE Made In USA Tested Strong TV-7
RARE VINTAGE AMERICAN 6SN7 TUBE SET — TESTED AND READY 💎 A highly desirable National-branded 6SN7 / 6H8C tube, made in USA and verified on a TV-7 tester with strong results. An excellent choice for collectors and serious tube audio systems. Tube Details and Codes 📌 • 6SN7 / 6H8C dual triode design • National brand, Made in USA • Vintage tested stock with strong emissions on TV-7 • Ideal for preamps, driver stages, and classic tube amplifiers Testing and Performance ⚡ • Tested strong on TV-7 • Checked for usable output and stable operation • Suitable for audiophile applications where quiet, balanced performance matters Sonic Signature 🎵 • Smooth midrange with rich harmonic texture • Open, natural presentation with classic tube warmth • Excellent for vintage hi-fi systems seeking body and musicality
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The Vintage Preamp Collection
Capture the atmospheric depth of the golden era with laboratory-verified signal artifacts that translate historical manufacturing mastery into a radiant and immersive listening experience.
Hover image to Zoom | -01KSH617PM55XS30XDFYG3SJ7K.jpg) 6SN7 6H8C National VINTAGE Made In USA Tested Strong TV-7 | -01KSH807MEXTGAEQAXTY9EYHA3.jpg) 6SN7 6H8C STANDARD Vintage Black Plate USA Matched Triode |  12AU7 ECC82 Telefunken VINTAGE Tested Good Halo Getter | -01KSH7V3XG7WG6P263TJ9TF3MW.jpg) 6SN7 6H8C WGTA Vintage Black Plate USA Matched | -01KSH6YY1RJR1F2BVTC658MZWY.jpg) 12AX7 ECC83 Philips VINTAGE Delta Code Holland |  12AT7 ECC81 GE VINTAGE USA Tested Tube | -01KSH8BYAY78ZCW8G1J6S6JXH0.jpg) 12AX7 ECC83 ADZAM VINTAGE Tested Strong Made In Germany |  6DJ8 E88CC Tesla USED Gold-Pin Box Plate Matched Triode |
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| Price | $121.00 | $98.00 | $134.00 | $98.00 | $108.00 | $71.00 | $95.00 | $82.00 |
| Origin & Factory | Made in USA vintage | Made in USA | Telefunken Germany | Made in USA | Philips Holland Delta | Made in USA vintage | Made in Germany | Made Czechoslovakia |
| Stock Condition | single tested tube | USA-stock vintage | single vintage tube | single vintage tube | single vintage tube | preowned tested tube | single vintage tube | Used vintage single |
| Measured Performance | TV-7 tested strong | TV-7 tested strong | TV-7 tested good | TV-7 tested strong | TV-7 tested strong | test-checked operational | TV-7 tested strong | TV-7 tested strong |
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