(1) Tested Magnavox 6EW6 Tube Date Code 3-26 Sharp Cutoff Pentode Tube

(1) Tested Motorola 6EW6 Tube Date Code 60-26 Sharp Cutoff Pentode Tube

(1) Tested RCA 6EW6 Tube and Box Date Code DE RCA Sharp Cutoff Pentode Tube

(1) Tested GE 6EW6 Tube General Electric Sharp Cutoff Pentode Tube

(1) Tested Magnavox 6EW6 Tube Date Code 235 Japan Sharp Cutoff Pentode Tube

(1) Tested 1955 Sylvania 6EW6 Tube Date Code 548 Sharp Cutoff Pentode Tube

(1) Tested GE 6AF11 Tube Compactron Dual Triode Sharp Cutoff Pentode Tube (a)

(1) Tested Strong Admiral 6DT6 Tube Date Code 57-26 Sharp Cutoff Pentode Tube