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6SN7 6H8C Ken-Rad VINTAGE Black-Plate USA Tested Strong
RARE VINTAGE AMERICAN POWER TUBE — ACTUAL STOCK 💎 A highly regarded Ken-Rad 6SN7 / 6H8C from the classic U.S. production era, featuring the desirable black-plate construction and strong test results. A compelling choice for collectors and tube rolling enthusiasts seeking authentic vintage tone with proven performance. Tube Details and Codes 📌 • US Tube Type: 6SN7 • European Code: 6H8C • Brand: Ken-Rad • Origin: Made in USA • Construction: Black-Plate Testing and Performance ⚡ • Tested strong on TV-7 tube tester • Verified working condition • Suitable for high-end headphone amps and preamps • Selected for dependable vintage use Sonic Signature 🎵 • Rich midrange body with organic harmonic texture • Smooth, spacious presentation with classic tube warmth • Excellent choice for listeners seeking a bold, authoritative vintage sound
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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 | -01KR5H7EF6B024KGB49FMNQNVE.jpg) 6SN7 6H8C Ken-Rad VINTAGE Black-Plate USA Tested Strong | -01KSH8BYAY78ZCW8G1J6S6JXH0.jpg) 12AX7 ECC83 ADZAM VINTAGE Tested Strong Made In Germany | -01KSH807MEXTGAEQAXTY9EYHA3.jpg) 6SN7 6H8C STANDARD Vintage Black Plate USA Matched Triode |  6DJ8 E88CC Tesla USED Gold-Pin Box Plate Matched Triode | -01KSH7YE8EX6VYZT0PPQQQQRFT.jpg) 6SN7 6H8C Tronal USA VINTAGE Tested On TV-7 | -01KSH7V3XG7WG6P263TJ9TF3MW.jpg) 6SN7 6H8C WGTA Vintage Black Plate USA Matched | -01KSH6YY1RJR1F2BVTC658MZWY.jpg) 12AX7 ECC83 Philips VINTAGE Delta Code Holland | -01KSH8G0AZP91G8K7WS56B6K2X.jpg) 12AU7 ECC82 Mazda VINTAGE Made In France Strong TV-7 Tested |
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| Price | $96.00 | $95.00 | $98.00 | $82.00 | $88.00 | $98.00 | $108.00 | $90.00 |
| Origin & Factory | USA vintage Ken-Rad | Made in Germany | Made in USA | Made Czechoslovakia | USA-origin vintage | Made in USA | Philips Holland Delta | Made in France |
| Stock Condition | single tube | single vintage tube | USA-stock vintage | Used vintage single | single tube | single vintage tube | single vintage tube | Vintage single tube |
| Measured Performance | TV-7 tested strong | TV-7 tested strong | TV-7 tested strong | TV-7 tested strong | tested on TV-7 | TV-7 tested strong | TV-7 tested strong | Strong TV-7 tested |
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