5Y3 USA Sylvania RCA Raytheon USED Tested TV-7

Classic American Rectifier Stock — Actual Tested Tube 💎 Reliable vintage 5Y3 rectifier tube from Sylvania, RCA, or Raytheon, made in the USA and selected for serious tube audio systems. A trusted power-supply rectifier with proven performance and strong collectible appeal. Tube Details and Codes 📌 • 5Y3 power rectifier tube • American manufacture: Sylvania / RCA / Raytheon • Made in USA construction • Preowned vintage stock Testing and Performance ⚡ • Used tube, fully tested good on a TV-7 tester • Emissions and basic function verified • Suitable for restoration, replacement, or spare stock • Strong option for vintage amplifiers and tube gear Sonic Signature 🎵 • Smooth, stable rectification with classic tube character • Supports rich tonal density and organic dynamics • Ideal for audiophile restorations seeking authentic vintage presentation