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6N3P 5670 6CC42 Tesla VINTAGE Tested TV-7
Rare Eastern European Small-Signal Tube — Verified on TV-7 💎 A highly desirable vintage Tesla amplifier tube, cross-compatible with 6N3P / 5670 / 6CC42 families. Carefully tested and selected for serious audiophile use. Tube Details and Codes 📌 • Tesla manufacture from Europe • Compatible with 6N3P, 5670, and 6CC42 applications • Vintage preowned stock, professionally tested • Suitable for preamps, line stages, and small-signal tube circuits Testing and Performance ⚡ • Tested on a TV-7 tube tester • Emissions and basic tube condition verified • Ready for installation and listening use • Ideal for reliable service in high-end audio systems Sonic Signature 🎵 • Smooth, open midrange with natural tonal density • Clean top-end presentation and refined detail • Engaging, musical character with classic tube warmth
The Hidden Engineering Gallery
Analyze the impact of premium internal builds on your audio signal.
 6N3P 5670 6CC42 Tesla VINTAGE Tested TV-7 |  EF804 Telefunken NOS Silver Plate | -01KQH9D8ZS0F5HTPVJKET3E2EJ.jpeg) 6BL8 ECF80 Lorenz NOS German Stock Adapter For 7199 amplifiers | -01KQH5QVBYYD7AXMG3DB55DH6A.jpeg) EM80 EM80 Tesla VINTAGE Display Tube Tested | -01KQHAJYNBK5SQA5CSA9CV5YMH.jpeg) EF804 Telefunken NOS Diamond Bottom German Made | -01KQH635PHBVF500TRRF3NJC8M.jpeg) 6C51 2C51 5670 6N3P Tesla VINTAGE Tested Strong |  EM84 Vintage Display Tube Tested Good German Stock | -01KQH7HP8KD1JVX4N7XD4EHND7.jpeg) 6U8 ECF82 Valvo VINTAGE Tested Strong | |
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| Price | $71.00 | $84.00 | $84.00 | $69.00 | $79.00 | $74.00 | $73.00 | $79.00 |
| Origin & Factory | Tesla vintage Europe | German NOS Telefunken | German NOS stored | Czechoslovak Tesla | German-made Telefunken | Czechoslovakia vintage | German/European stock | German Valvo vintage |
| Stock Condition | preowned tested stock | new old stock | original box inventory | single vintage tube | new old stock | used vintage stock | vintage hi-fi stock | used vintage tube |
| Measured Performance | TV-7 emissions verified | verified NOS condition | NOS | tested good | no prior use reported | tested strong TV-7 | tested good functional | TV-7 tested strong |
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