(1) Tested RCA 12DB5 Tube with Box Date Code MI RCA Beam Power Tube

(1) Tested RCA 6DT5 Tube with Box Date Code DV Canada RCA Beam Power Tube (a)

(1) Tested RCA 6DT5 Tube with Box Date Code AL RCA 6DT5 Beam Power Tube

(1) Tested Strong RCA 6GY5 Tube Date Code DW 6GY5 Beam Power Tube

(1) Tested Strong RCA 6AS5 Tube with Box Date Code CJ RCA 6AS5 Beam Power Tube

(1) Tested Strong RCA 6AU5GT Tube Date Code KH RCA 6AU5 GT Beam Power Tube

(1) Tested Strong RCA 6AU5GT Tube Date Code 035 RCA 6AU5 GT Beam Power Tube

(1) Tested RCA 5CZ5 Tube with Box Date Code AV Beam Power Pentode Vacuum Tube