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SYLVANIA

12AT7E E81CC NOS Sylvania – 3 Mica Gray Wing Plates Square Getter Tube USA 1946

12AT7E E81CC NOS Sylvania – 3 Mica Gray Wing Plates Square Getter Tube USA 1946

$100.00 AUD
$100.00 AUD
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12AT7E ( ECC81 ) SYLVANIA NOS 3 Mica Gray Wing Plates Square Tilt Getter Tested Tube Made in USA '46

Description:

The 12AT7E SYLVANIA , in the very first version from 1946 , with 3 micas , gray wing-type plates and square tilt getter , is a tube of extraordinary historical and sonic value. Belonging to an extremely solid construction generation, this version stands out for its balanced voice , precise tonal structure and a well-modulated dynamic response , making it ideal for applications where transparency without dryness and musicality without coloration are desired.

Bass : defined, dry, and well-articulated. The low range is compact and controlled, free of exuberance, yet always present in a solid way and useful for the harmonic foundation of listening. Perfect for systems requiring rhythmic precision.

Mids : Transparent, tidy, and slightly silky. Voices emerge with balance and naturalness, without emphasis, maintaining intelligibility even in the most complex passages. Acoustic instruments are well-distributed, with a clear but not aggressive texture.

Highs : Fine, controlled, and consistent. The high range extends delicately, never pushing forward or sounding harsh. The final effect is one of measured brilliance, always functional to the soundstage.

Dynamics : smooth, progressive, and musically refined. The tube responds promptly but never overemphatically. Micro-variations are clearly visible, and macro-dynamics develop in a balanced manner, making for a rich and never tiring listening experience.

Soundstage : Balanced, stable, with good lateral openness and realistic depth. Channel separation is clear, and the spatial focus maintains coherence even with complex sources.

The 1946 Sylvania 12AT7 E , in this rare tested and selected version, is a transparent, fluid and tonally sober tube, capable of adapting to different applications with a versatile but always musical character. Particularly suitable for those who desire a neutral but engaging presentation, without imbalances towards warmth or artificial brightness.

🎧 Use in Headphone Amplifiers and Hi-Fi Driver Stages

The 12AT7 E Sylvania finds its place in hi-fi systems that require stability, tonal balance and operational silence , especially in reference-class headphone amplifiers or sensitive gain stages. In mu-follower , cathode follower or SRPP configurations, it delivers a well-ordered soundstage, free from listening fatigue, with precise but not intrusive detail. Excellent synergy with headphones such as the Sennheiser HD600 , ZMF Auteur , Focal Clear , for those looking for long, coherent and transparent listening sessions .

🎸 Use in Guitar and Bass Amplifiers

While less common than other versions for musical use, the Sylvania 12AT7 E '40s offers excellent performance as a driver or inverter in vintage and reissue tube amplifiers. In amps like the Fender Twin Reverb , Deluxe Reverb , or Princeton Reverb , it offers a firm, articulate response, ideal for those seeking clean headroom, defined attack, and dynamic control . Its tonal transparency also makes it ideal for tube bass , where a solid but not bloated low end is desired, useful for professional rigs and studio preamps.

🎯 Note for audiophiles :
A historic, neutral, and well-built tube, ideal for systems that aren't looking for easy euphony, but for honest, readable, and consistently musical behavior. Excellent as a starting point for comparative tests, for those seeking a natural reference voice on which to build their own sound.

Test Results:

Valve tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V, Vg = -2V
  • Average 100%: Gm = 5.5 ; Ia = 10.0 mA
  • Test Result: VERY STRONG

Valve:

  • Section 1: Gm = 6.3 ; Ia = 15.4 mA
  • Section 2: Gm = 6.2 ; Ia = 12.0 mA

Additional Tests Performed:

  • Microphonics: Low Noise & Microphonics – Tested and compliant for use in hi-fi systems and guitar amplifiers.
  • Output Quality: Excellent – Very strong and stable output, no fluctuations.
  • Short circuits and GAS: Absent.

Conditions:

  • Condition: NOS - New Old Stock - Tested and in perfect working order. Comes in our custom box for optimal protection.
  • Functionality: Fully functional.
  • Cosmetic condition: Good – Lettering partially eroded, but still legible. Valve body in good condition. See photos for details.
  • Manufacturing Code: 644 - produced in the 44th week of 1946

Find out why our valves are different →

Terms of Sale & Safety

Sales Terms & Product Safety

Each vacuum tube is carefully selected, tested, and verified in our laboratory before shipment. Where stated in the listing, test results, matching data, and declared characteristics refer to measurements performed using the specified test equipment and operating conditions.

Sound descriptions are provided for guidance only and reflect the characteristics generally associated with that particular tube type. Personal sound preferences, tube rolling, or perceived differences between audio systems do not constitute a product defect.

Before installation, please verify the tube’s electrical and mechanical compatibility with your equipment and follow the manufacturer’s instructions.

New production and NOS tubes are shipped with a tamper-evident security seal and internal technical documentation to ensure traceability of the product’s condition at the time of shipment.

Product Safety (GPSR)

Vacuum tubes are electronic components intended exclusively for use in compatible equipment and must be installed in accordance with the equipment manufacturer’s instructions.

Due to their historical or vintage nature, certain technical specifications may be based on original datasheets or equivalent technical documentation when documentation from the specific manufacturer is unavailable.

Use only with suitable equipment. Keep out of reach of children.

Shipping & Returns

Shipping & Returns

We ship worldwide using carefully selected express carriers and protective packaging specifically designed for vacuum tubes.

If you change your mind, you may exercise your right of withdrawal within 14 days of delivery, where applicable under the relevant consumer protection laws. The product must be returned complete with its original packaging and accessories, in the same commercial condition in which it was received. Return shipping costs are the responsibility of the customer.

Every returned item undergoes a technical inspection. Installation, use, tube rolling, or any other handling may reduce the product’s commercial value and may affect the refund amount, in accordance with applicable law.

If you believe the product has a lack of conformity, our laboratory will carry out the necessary inspections and apply the remedies provided by the applicable consumer protection legislation.

For further details, Customers are invited to consult the “Terms and Conditions” and “Refund Policy” sections of our website, or to contact us before placing an order.

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  • ATTENTION PLEASE

    Please understand that the writing on the glass of vintage valves has become very delicate over the years and comes off easily. You must handle them with extreme care to avoid this. Wear and damage to the writing on the valves reduces their market value and causes damage. Please exercise extreme caution.

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