{"id":14483,"date":"2024-12-26T08:49:56","date_gmt":"2024-12-26T13:49:56","guid":{"rendered":"https:\/\/busther.com.co\/tienda\/uncategorized\/12at7-vacuum-tube-nippon-electric-company-nec-dual-triode\/"},"modified":"2026-04-16T17:10:16","modified_gmt":"2026-04-16T22:10:16","slug":"12at7-vacuum-tube-nippon-electric-company-nec-dual-triode","status":"publish","type":"product","link":"https:\/\/busther.com.co\/en\/shop\/electronic-components\/active-components\/vacuum-tubes\/american-series-vacuum-tubes\/12\/12a\/12at7-vacuum-tube-nippon-electric-company-nec-dual-triode\/","title":{"rendered":"12AT7 Vacuum Tube \u2013 Nippon Electric Company (NEC) \u2013 Dual Triode"},"content":{"rendered":"

12AT7 Vacuum Tube \u2013 Nippon Electric Company (NEC) NOS \u2013 Professional Grade Dual Triode<\/h1>\n

 <\/p>\n

The 12AT7 vacuum tube by Nippon Electric Company (NOS) (equivalent to the ECC81) is a high-transconductance dual triode with an amplification factor (mu) of 60. Its internal construction features reinforced gray plates and a grid design that minimizes microphonics. As a \u201ccommunications-grade\u201d tube, it was manufactured under much stricter tolerances than commercial versions, ensuring extended service life and superior gain stability.<\/p>\n

\"V\u00e1lvula
12AT7 Vacuum Tube \u2013 Nippon Electric Company<\/figcaption><\/figure>\n

Brand History: Nippon Electric Company (NEC)
<\/span><\/strong><\/h4>\n

Founded in 1899 as a partner of Western Electric, Nippon Electric Company (NEC) became a benchmark for electronic quality in Japan. During the \u201cgolden age\u201d of vacuum tubes, its valves were selected for medical equipment and state telecommunications systems. Today, audiophiles consider NEC tubes from the 1960s and 1970s as \u201chidden gems,\u201d offering the sweetness of European valves combined with Japanese technical precision. <\/span><\/p>\n

<\/div>\n

Applications and Real-World Uses
<\/span><\/strong><\/h4>\n
    \n
  • \n

    Hi-Fi Audio: Premium replacement for preamplifiers and phase inverter stages.<\/p>\n<\/li>\n

  • \n

    Guitar Amplifiers: Ideal for the reverb channel or as a driver in Fender amplifiers, providing cleaner headroom than a 12AX7.<\/p>\n<\/li>\n

  • \n

    Studio Equipment: Used in optical compressors and tube microphones where low distortion is required.<\/p>\n<\/li>\n<\/ul>\n

    \"12AT7
    12AT7 NIPPON ELECTRIC NEC<\/figcaption><\/figure>\n

     <\/p>\n

    Technical Specifications <\/span><\/strong><\/h4>\n
      \n
    • \n

      Tube Type: High-Mu Dual Triode (Twin Triode)<\/p>\n<\/li>\n

    • \n

      Heater Voltage: 6.3V @ 300 mA or 12.6V @ 150 mA<\/p>\n<\/li>\n

    • \n

      Amplification Factor (\u00b5): 60<\/p>\n<\/li>\n

    • \n

      Plate Resistance: 10,900 \u03a9<\/p>\n<\/li>\n

    • \n

      Transconductance: 5,500 \u00b5mhos<\/p>\n<\/li>\n

    • \n

      Base: 9-pin miniature (Noval, B9A)<\/p>\n<\/li>\n

    • \n

      Grade: Communication Use (High Reliability)<\/p>\n<\/li>\n

    • Condition: New tube, no original packaging, tested!<\/li>\n<\/ul>\n

      <\/h3>\n

      (FAQ)<\/span><\/h3>\n

      Can I use a 12AT7 instead of a 12AX7?<\/span><\/strong>
      It physically fits, but the 12AT7 has lower gain (60 vs 100). In audio applications, this results in a cleaner sound with more dynamics, which is ideal if your amplifier breaks up or distorts too early. <\/span><\/p>\n

      What does the Japanese marking on the glass mean?<\/span><\/strong>
      It means \u201cCommunication Use\u201d (\u00e9\u20ac\u0161\u00e4\u00bf\u00a1\u00e7\u201d\u00a8). It indicates that the tube was manufactured to industrial or military standards, offering greater durability than a standard consumer-grade tube. <\/span><\/p>\n

      Has the tube been tested?
      <\/span><\/strong>
      Yes, we guarantee excellent emission on a tube tester, ensuring it meets the original factory specifications.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

      \"no15_4.png\"<\/p>\n

      Elevate your system\u2019s performance with the 12AT7 vacuum tube by Nippon Electric Company NOS.
      This unit is not an ordinary valve; it is the \u201cCommunication Use\u20ac\u009d (Ts\u00c5\u00abshin-y\u00c5\u008d) version, designed for extreme reliability and an exceptionally low noise floor. Ideal for preamplifier stages where clarity and harmonic definition are critical. New Old Stock unit, preserved in excellent condition and professionally tested on a tube tester.<\/p>\n","protected":false},"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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