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6C5 6J5 French Vintage Black Plate Test Strong Matched Pair
RARE FRENCH VINTAGE STOCK — TESTED STRONG 💎 Classic 6C5 / 6J5 French-made tubes with black plates and a one-piece engraved base. A highly attractive vintage find for collectors and serious tube enthusiasts. Tube Details and Codes 📌 • US Type: 6C5 / 6J5 • Origin: France • Construction: Black plate, one engraved base • Carefully selected for premium preowned or vintage use Testing and Performance ⚡ • Test strong, like NOS-level condition • Verified for solid electrical performance • Suitable for low-noise, high-fidelity applications Sonic Signature 🎵 • Smooth, open midrange with refined harmonic texture • Natural tonal density and excellent musical flow • Ideal for classic tube amplifiers and vintage line stages
The Hidden Engineering Gallery
Analyze the impact of premium internal builds on your audio signal.
-01KQHAQ5GST5B9QNCC6MQK9PAX.jpeg) 6C5 6J5 French Vintage Black Plate Test Strong Matched Pair | -01KQH514BYJTRT2TFCKG754WGE.jpeg) 12AU7 5814A Sylvania VINTAGE 3 Mica O-Getter Matched Pair | -01KQH8ZF277HB1Z8WSDJ5V345C.jpeg) 6BL8 E80CF Valvo VINTAGE Thinline German Made |  EF804 Telefunken NOS Silver Plate | -01KQH9D8ZS0F5HTPVJKET3E2EJ.jpeg) 6BL8 ECF80 Lorenz NOS German Stock Adapter For 7199 amplifiers | -01KQHAJYNBK5SQA5CSA9CV5YMH.jpeg) EF804 Telefunken NOS Diamond Bottom German Made | -01KQHACQJZ9KQ9H5DC32W0V558.jpeg) 6BL8 ECF80 Valvo VINTAGE Hamburg Gold Pin Matched Triode |  6BL8 E80CF Generic VINTAGE German Stock Tested | |
|---|---|---|---|---|---|---|---|---|
| Price | $150.00 | $160.00 | $103.00 | $84.00 | $84.00 | $79.00 | $96.00 | $88.00 |
| Origin & Factory | French vintage stock | USA-made preowned | German-made Valvo | German NOS Telefunken | German NOS stored | German-made Telefunken | Valvo Hamburg Germany | German-made vintage |
| Stock Condition | preowned vintage stock | matched pair | single vintage tube | new old stock | original box inventory | new old stock | matched triode pair | vintage stock |
| Measured Performance | tested strong verified | TV-7 tested strong | tested NOS-like performance | verified NOS condition | NOS | no prior use reported | strong emissions verified | tested like NOS |
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