Ray Tubes 12AT7 Core vacuum tube

The 12AT7 is part of a large family of dual triodes that also includes the common 12AX7 and 12AU7 tubes.
Its higher gain and transconductance made it suitable for high frequency applications in devices like TVs and FM radios. In the world of audio, itʼs commonly used as a driver or phase inverter in push-pull audio circuits. Both of its common cousins are already available in the CORE collection—now, Ray Tubes is expanding the family with the CORE 12AT7.

Product highlights

The Ray Tubes CORE Collection delivers everything you know and love about tube audio with reliability and consistency. CORE is all you need for years of audio bliss.

• Designed and manufactured by a team with decades of experience
• Hand-selected specifically for use in audio applications
• Substantially more consistent performance than New Old Stock
• Unlike NOS and most other new production, covered by the Ray Tubes
• One Year Warranty

The CORE 12AT7 delivers a clear and energetic sound character, ideal for users seeking mid-to-high frequency articulation and rhythmic precision.

• The bass is restrained, prioritizing clarity and a well-defined structure.
• The midrange frequencies are linear and open, excelling with vocals and acoustic instruments.
• The treble performance is crisp and energetic, staying clean and controlled without introducing harshness.
• The dynamics are responsive with smooth transitions, while the soundstage offers good positioning and layering of notes.