The Western Electric made National Union 350B is a truly exceptional tube, offering the legendary performance of the Western Electric 350B with the same unmistakable sonic character. Manufactured in the early 1950s, these rare tubes stand apart, delivering an airy, three-dimensional presentation with incredible detail, depth, and dynamic energy.

A nearly perfect 6L6 replacement, the 350B offers enhanced tonal richness and holographic imaging, with a filament current of 1.6A versus the 0.9A draw of the standard 6L6GC. The result? A sound that is more palpable, focused, and effortlessly powerful, with a level of refinement that elevates any system.

Each tube has been carefully tested to ensure it performs at the highest level. Featuring the distinctive early 1950s “D” style getter, these tubes are not only sonically outstanding but also a rare piece of audio history.

For those who demand the best, the Western Electric made National Union 350B is the definitive 6L6 experience.

• Compatible with EL34 tube amps and DACs.

• Filament current 1.6A

• National Union 350B, matched quad (4) tubes

• WES (1st and 2nd gen)