403B Western Electric Electron Tube
Untested – NOS
Western Electric 403B Tube. Square Getter
Western Electric 403B Tube. Square Getter.
Western Electric 403B Electron Tube NOS Boxed
Vacuum Tube Western Electric 403B – New in Box
Western Electric 403B, New in Box. Working.
403B Western Electric Electron Tube
Untested – NOS in box
Western Electric Dark Plate 403B 5591 tube 539C Tested NOS NIB🔊
Gas (Grid Current)Test: Passed. Mutual Conductance (GM)Test: 32.4 (32 = NOS AVERAGE & 21 = Good MINIMUM). Test results will vary between testers as it is not an exact science and all testers have their limitations.
1 – NOS WESTERN ELECTRIC 403B TUBE / 6AK5 / 5654
Tube tested from :Amplitrex AT-1000 / 6AK5.
NOS WESTERN ELECTRIC 403B Audio Tube
The NOS Western Electric 403B audio tube is a vintage electronic component sought after by collectors and enthusiasts in the vintage audio and video industry. This particular model, known for its superior sound quality, is a sought-after item in the vintage parts and accessories market. With the Western Electric brand reputation backing it, this NOS tube is sure to be a valuable addition to any vintage audio setup.
12 of Western Electric 403B 5591 Vacuum Tubes Square Getters Test Strong TV-7U
Western electric 403b tubes.good shape and test fine.
