Type 53 National Union ST bottle Rare Triple Mica Dual Triode Power Tube

1 NOS Raytheon 6B4-G Vacuum Tube - 1954 Vintage Flat Black Plate Audio Triode

7199 NOS Raytheon Triode Pentode Tube Made In USA Triplet 3444 tested

NOS 6J7G AUDIO TUBE RAYTHEON St Bottle Globe Nib

Raytheon USA 7AF7 NOS NIB Tube Dual Triode Chrome Top Black Round Plates -Tested

NOS Sparton Type 79 - St Bottle Dual Triode Power Output Vacuum tube

Matched PAIR 5755 Tube Raytheon JAN NOS WE 420A Dual Triode Amp 1983 Date Code

Sylvania 53 ST bottle Dual Triode Power Tube Engraved Base NOS