Emission Labs EML274 Rectifier tube

Electrically equivalent to the original Western Electric historical vacuum tube EML 274B - A carefully selected rectifier tube for exquisite sound

The EML 274B is a full wave rectifier tube that carries on the lineage of the legendary Western Electric 274 series. It is electrically equivalent to the original 274A and features an Octal socket for enhanced compatibility in modern environments. If you need a 274A, we suggest the EML 80 instead.

The 274B uses a design in which two diode filaments are connected in series, which minimizes operational stability and signal influence. It provides stable power, especially when combined with a small capacitor to deliver 140mA of current in a C-L-C filter configuration. This characteristic reduces mechanical hum from the transformer, minimizes noise radiation, and provides refined sound quality compared to low-impedance rectifier tubes such as 5U4G or semiconductor rectifiers.

Testimonials from audiophiles who have actually used the EML 274B also highlight its characteristics.

Since the introduction of the 274B, the transparency and three-dimensionality of the music have been enhanced, especially at low volumes, and the fine details are perceptible. Noise from the transformer has been remarkably reduced, and we now enjoy a cleaner sound than before."

The EML 274B is the ideal partner for my amplifier."

The flexibility to use 20uF capacitors instead of 4uF under low voltage and current conditions also allows for tuning to suit the system.

As the high reputation of the EML 274B among audiophiles demonstrates, it is the best choice for those who care about sound quality and stability, and can confidently recommend it to others.

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