(1) General Electric GE 5AR4 GZ34 Rectifier Tube Copper Plates Tests Strong

(1) Tested Strong Motorola 6CL3 Tube Date Code 67-52 Half Wave Rectifier Tube

(1) Tested Sylvania 1B3GT Tube Date Code CG 1B3 GT Half Wave Rectifier

(1) Tested Tung Sol 1B3GT Tube Date Code KD3 1B3 GT Half Wave Rectifier

(1) Tested GE 6AX4GTB Tube Date Code MU General Electric 6AX4 GTB Rectifier

(1) Tested GE 6AX4GTB Tube Date Code MZ General Electric 6AX4 GTB Rectifier

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

(1) Tested GE 117Z3 Tube Date Code 2-17 General Electric Half Wave Rectifier