Offering a superb matched quad (4 Pcs) of vintage NOS RCA 6AX5GT full-wave vacuum rectifiers, manufactured in the USA during RCA’s golden era. Premium variant features sturdy black plates, early production double square getter structures, and robust black bases. Highly regarded for stable power delivery, low noise, and exceptional longevity in vintage audio amplifiers and radio power supplies, these are New Old Stock (NOS) packaged in white boxes.

All four tubes have been precision tested on a laboratory-grade Hickok 752A tube tester to ensure optimal balance and identical emission strength across all plates, as detailed in the test results table below.