5V4 U.S. Purotron VINTAGE Pear-Shape Rectifier
RARE VINTAGE 5V4 RECTIFIER — ACTUAL PHOTO 💎 Classic Purotron 5V4 rectifier tube with the desirable pear-shaped envelope. A valuable vintage piece for restoration, upgrade, or collector-grade tube systems. Tube Details and Codes 📌 • 5V4 rectifier tube, American type • Purotron brand, vintage production • Pear-shape glass envelope • Suitable for classic tube amplifiers and power supplies Testing and Performance ⚡ • Tested good • Clean, reliable operating condition • Strong candidate for vintage hi-fi and restoration use Sonic Signature 🎵 • Smooth power delivery with classic rectifier character • Helps support a more organic, natural tube presentation • Ideal for systems seeking authentic vintage tone
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