(1) Tested Tung-Sol 6AW8A Tube Tung Sol 6AW8 A High Mu Triode Cut Off Pentode

(1) Tested RCA 6AW8A Tube and Box Date Code BH 6AW8 A High Mu Triode Pentode (a)

(1) Tested RCA 6EB8 Tube Date Code AP High Mu Triode Pentode Tube

(1) Tested RCA 6JN8 Tube Date Code BW Triode Pentode Vacuum Tube

(1) Tested RCA 6AW8 Tube with Box Date Code BKP 6AW8 High Mu Triode Pentode

(1) Tested Relay 6CX8 Tube Date Code 6-66 Medium Mu Triode Pentode Tube

(1) Tested Philco 6JE8 Tube Date Code EBF High Mu Triode Sharp Cutoff Pentode

(1) Tested Philco 6AU8A Tube with Box Date Code 6504 Triode Pentode