NEC 6X4 (6202) Vacuum Tube

The NEC 6X4 is a compact full-wave rectifier that boasts reliability, low noise, and steady voltage delivery in small-signal and low-power audio circuits. Manufactured in Japan to tight industrial standards, NEC versions are well regarded for their calm, controlled presentation by keeping the power supply quiet and well regulated, which helps downstream stages perform at their best. 

Archive Assessed, Apos Assured

All Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. 

Are the tubes...dusty...?

Because these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.

Specs

• Brand / Type: NEC 6X4 / EZ90 / U78 / CV493 / CV4005 / 6202
• Plate Type: Gray Plate
• Getter Type: Top Ring Getter
• Box: Original Box
• Made in: Japan
• Tested on: Amplitrex AT1000 Advanced Digital Tube Tested