• Two electronic components with 'Core 12AT7' branding on a black background
  • Two glass vacuum tubes, one upright and one tilted, on a plain white background. The upright tube has 'CORE 12AT7' printed on it, and the tilted tube has 'RAY TUBES' printed on it.
  • Two vacuum tubes with 'Ray Tubes' branding on a black background
  • Two glass Ray Tubes, one labeled 'CORE 12AT7' and the other 'RAY TUBES', displayed on a reflective black surface against a solid black background.
  • Close-up of a glass tube with metallic components on a black background
  • A close-up studio shot of a clear glass vacuum tube labeled 'CORE 12AT7' in white text, with internal copper filaments visible, set against a black background with a reflective surface below.
  • Close-up of a electronic component with 'CORE 12AT7' branding on a black background
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Ray Tubes

Ray Tubes CORE 12AT7

Ray Tubes CORE 12AT7

$29.00 USD
$29.00 USD
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CORE 12AT7

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, it's commonly used as a driver or phase inverter in push-pull audio circuits. Both of its common cousins are already available in the CORE tier, and now Ray Tubes is completing the set with the CORE 12AT7.

Product Highlights

CORE is the Ray Tubes entry tier. Built new for audio, measured, matched, and covered by the Ray Tubes One Year Warranty.

  • 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

Sounds Characteristics 

The CORE 12AT7 delivers a clear and energetic sound character, articulate in the mid-to-high frequencies and precise with rhythm.

  • 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.

Package Contents

  • Available as a single tube (RT-CO-12AT7-X1) or matched pair (RT-CO-
    12AT7-X2)
  • User handbook featuring burn-in guidelines
  • Certificate of authenticity and warranty
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