(1) Tested RCA 5X8 Tube with Box Date Code KP Triode Pentode Tube

(1) Tested GE 5AN8 Tube with Box Date Code 59-04 General Electric Triode Pentode

(1) Tested GE 6JC8 Tube with Box Date Code SC General Electric Triode Pentode

(1) Tested GE 1A5GT Tube Date Code 8-39 General Electric 1A5 GT Pentode Tube (b)

(1) Tested GE 6JV8 Tube and Box Date Code NJ General Electric Triode Pentode (b)

(1) Tested GE 6CU5 & Box Date Code CZ Gray Plate General Electric Power Pentode

(1) Tested GE 6JV8 Tube and Box Date Code NJ General Electric Triode Pentode (a)

(1) Tested GE 6JD6 Tube with Box Date Code FK General Electric Pentode Tube