(1) Tested Raytheon 12EL6 Tube with Box Code IO4 Dual Diode High Mu Triode (a)

(1) Tested Raytheon 12EL6 Tube with Box Code IO4 Dual Diode High Mu Triode (c)

Globe 245 Triode Tube Powertone Everyready Raytheon Box Plate

(1) Tested Motorola 12AL5 Tube with Box Date Code 59-04 Dual Diode Tube (b)

(1) Tested RCA 6AT6 Tube with Box Date Code BF Twin Diode High Mu Triode Tube

(1) Tested Sylvania 12AV6 Tube Date Code bh AUN 12AV6 Twin Diode High Mu Triode

(1) Tested Meck 12AT6 Tube Date Code 8-22 GE EIA Code Twin Diode High Mu Triode

(1) Tested Sylvania 3AV6 Tube with Box Date Code ACG Twin Diode High Mu Triode