Pair RCA 6DN7 tubes. Amplitrex Tests 101/112% & 112/106% gm

6BN8 RCA NOS Vacuum Tube, TV-7D Tested - will combine shipping

Matched Pair 6S4A RCA NOS Vacuum Tubes, TV-7D Tested - will combine shipping

6BN8 Sylvania NOS Vacuum Tube, TV-7D Tested - will combine shipping

6BX7GT Sylvania NOS 3 mica Vacuum Tube, TV-7D Tested - will combine shipping

Pair 6CG7/6FQ7 Sylvania NOS Vacuum Tubes, TV-7D Tested - will combine shipping

Tightly Matched Pair 6GK6 GE NOS Vacuum Tubes, TV-7D Tested - will combine

Matched Pair 1U4 RT NOS Vacuum Tubes, TV-7D Tested - will combine shipping