(1) Tested Very Strong RCA 1J3 Tube Date Code MP Half Wave Rectifier Tube

(1) Tested Very Strong RCA 6BK4B Tube with Box Date Code CB Diode

(1) Tested RCA 6W4GT Tube Date Code 3-43 RCA 6W4 GT Half Wave Rectifier

(1) Tested RCA 6DE4 Tube with Box Date Code AL RCA 6DE4 Half Wave Rectifier

(1) Tested Strong RCA 17D4 Tube Code NG Half Wave Rectifier Tube

(1) Tested Very Strong RCA 6BK5 Tube with Box Date Code CL RCA 6BK5 Tube (c)

(1) Tested RCA 6W4GT Tube with Box Date Code KG 6W4 GT Half Wave Rectifier Tube

(1) Tested RCA 6CL3 Tube with Box Date Code C3 Half Wave Rectifier Tube