(1) Tested Zytron 5U8 Tube Date Code 709 Triode Pentode Tube

(1) Tested Tung Sol 5U8 Tube with Box Date Code NC1 Triode Pentode Tube

(1) Tested Sylvania 5X8 Tube Date Code GL ELM Triode Pentode Converter Tube

LOT OF 2 6AW8A TRIODE/PENTODE AMPLIFIER VACUUM TUBES TUNG-SOL,G.E. BOXED TESTED

(1) Tested Tung-Sol 6J5 Tube Date Code 518-3 Tung Sol 6J5 Medium Mu Triode Tube

(1) Tested Tung-Sol 6AW8A Tube Date Code PRI 6AW8 A High Mu Triode Pentode

(1) Tested Tung Sol 6AC7 Tube Date Code 540-3 Sharp Cutoff Metal Pentode Tube

(1) Tested Tung-Sol 12SG7 Tube Date Code MR3 Tung Sol Remote Cutoff Pentode Tube