Ruby SED Winged-C 6550C Power Vacuum Tube

Ruby SED Winged-C 6550C power vacuum tube in NOS (New Old Stock) condition. This rare tube delivers the warm, dynamic tone sought by audiophiles and professional musicians. The Winged-C design represents a pinnacle of Soviet-era tube engineering, prized for its reliability and sonic characteristics in high-end amplifiers. Limited availability makes this a collector's item for serious audio enthusiasts. Secure yours before stock depletes.