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6SN7 6H8C Sylvania USA Vintage Tested Strong
RARE AMERICAN STOCK — TESTED AND READY TO ROLL 💎 Classic Sylvania 6SN7 / 6H8C from the USA, selected for serious hi-fi systems and vintage tube amplifiers. This example has been smoke-aged and extensively tested for strong performance. Tube Details and Codes 📌 • US Tube Type: 6SN7 • European/Equivalent Code: 6H8C • Brand: Sylvania • Origin: Made in USA • Condition: Vintage, smoke-aged, tested strong on TV-7 Testing and Performance ⚡ • Verified on TV-7 tube tester with strong results • Suitable for preamps, headphone amps, and classic hi-fi amplification • Inspected for reliable operation in demanding audio use Sonic Signature 🎵 • Known for rich midrange, smooth highs, and authoritative tone • Delivers classic American tube warmth with refined musical texture
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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 | -01KR5EXNMA28Y3AS2VX7BWHXM4.jpg) 6SN7 6H8C Sylvania USA Vintage Tested Strong | -01KSH8BYAY78ZCW8G1J6S6JXH0.jpg) 12AX7 ECC83 ADZAM VINTAGE Tested Strong Made In Germany |  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 | -01KSH8J9SHMZN6PA071R9QNAWZ.jpg) EF86 Telefunken VINTAGE Diamond-Bottom Low Noise Matched | -01KSH7ADPQ25X27TCXJ5Z0ZNBW.jpg) 6DJ8 E88CC Amperex VINTAGE Tested Good Made In Holland | -01KSH807MEXTGAEQAXTY9EYHA3.jpg) 6SN7 6H8C STANDARD Vintage Black Plate USA Matched Triode |
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| Price | $116.00 | $95.00 | $134.00 | $98.00 | $108.00 | $84.00 | $90.00 | $98.00 |
| Origin & Factory | USA Sylvania vintage | Made in Germany | Telefunken Germany | Made in USA | Philips Holland Delta | Telefunken German vintage | Made in Holland | Made in USA |
| Stock Condition | single vintage tube | single vintage tube | single vintage tube | single vintage tube | single vintage tube | single vintage tube | single vintage tube | USA-stock vintage |
| Measured Performance | TV-7 strong tested | TV-7 tested strong | TV-7 tested good | TV-7 tested strong | TV-7 tested strong | tested for emissions shorts | tested good on TV-7 | TV-7 tested strong |
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