6CA4 EZ81 RFT VINTAGE German Rectifier Test Good
RARE GERMAN-MADE RECTIFIER TUBE — TESTED AND READY FOR SERVICE 💎 A desirable vintage EZ81 / 6CA4 rectifier from RFT, made in Germany and verified in used test-good condition. A strong choice for restorations and serious tube systems seeking authentic European provenance. Tube Details and Codes 📌 • US Tube Type: 6CA4 • European Tube Type: EZ81 • Brand: RFT • Origin: Made in Germany • Condition: Vintage, used, tested good Testing and Performance ⚡ • Test results confirm good operation • Suitable for amplifier restoration and replacement use • Clean, dependable rectifier performance Sonic Signature 🎵 • Classic German rectifier character with stable, refined power delivery • Excellent foundation for natural tone, body, and musical flow
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