5670 396A 2C51 Raytheon VINTAGE Black Plate Matched Pair USA
RARE VINTAGE RAYTHEON MATCHED PAIR — ACTUAL PHOTO 💎 Classic American 5670 / 396A / 2C51 dual triodes with sought-after black-plate construction. Made in USA and tested strong on a TV-7, this pair is ideal for premium preamp, DAC, and line-stage applications. Tube Details and Codes 📌 • US tube types: 5670 / 396A / 2C51 • Brand: Raytheon • Construction: Black plate • Origin: Made in USA • Matching status: Matched pair Testing and Performance ⚡ • Tested strong on TV-7 • Emissions and shorts verified • Ready for high-end audio use • Condition reflects actual photos Sonic Signature 🎵 • Clean, articulate presentation with excellent detail retrieval • Strong dynamics and precise imaging • Vintage American tonal balance with excellent transparency
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| Price | $113.00 | $160.00 | $150.00 | $79.00 | $103.00 | $96.00 | $108.00 | $113.00 |
| Origin & Factory | Made in USA Raytheon | USA-made preowned | French vintage stock | vintage German-European | German-made Valvo | Valvo Hamburg Germany | Valvo Germany vintage | Italian NOS stock |
| Stock Condition | matched pair | matched pair | preowned vintage stock | preowned vintage inventory | single vintage tube | matched triode pair | single tube | factory sealed inventory |
| Measured Performance | TV-7 strong tested | TV-7 tested strong | tested strong verified | TV-7 strong tested | tested NOS-like performance | strong emissions verified | TV-7 tested strong | verified NOS storage |
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