4EJ7 TUBE SYLVANIA TESTED & BOXED VINTAGE COMMERCIAL SURPLUS

6FD7 TUBE RCA TESTED & BOXED VINTAGE COMMERCIAL SURPLUS

12AU6 TUBE TEKTRONIX BY RCA NEW TESTED & BOXED VINTAGE COMMERCIAL SURPLUS

6BQ7 A TUBE RCA TESTED & BOXED VINTAGE COMMERCIAL SURPLUS

6SN7 GTB TUBE RCA TESTED & BOXED VINTAGE COMMERCIAL SURPLUS

6FG7 TUBE RCA TESTED & BOXED VINTAGE COMMERCIAL SURPLUS

6GU7 TUBE RCA TESTED & BOXED VINTAGE COMMERCIAL SURPLUS

4EJ7 TUBE PHILCO TESTED & BOXED VINTAGE COMMERCIAL SURPLUS