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RAYTHEON

12AU7 ECC82 RAYTHEON Long Black Plates Square Getter Tested Tube Made in USA '58

12AU7 ECC82 RAYTHEON Long Black Plates Square Getter Tested Tube Made in USA '58

€49,90 EUR
€49,90 EUR
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12AU7 ( ECC82 ) RAYTHEON Long Black Plates Square Getter Tested Tube Made in USA '58

Description:

The 12AU7/ECC82 RAYTHEON with long black plates and square getter , produced in the United States in 1958 , is one of the most refined and sought-after versions of this medium-gain double triode. The long black plate construction is typical of the best American production of the late 1950s and gives this tube a solid, deep and particularly musical sonic personality.

The unit has been carefully tested in our laboratory and passed the tests with a VERY STRONG result, demonstrating excellent electrical performance. The tube is also balanced , with very low noise and microphonics , making it suitable even for sensitive circuit positions.

Sound Characteristics

Bass: Full-bodied, full, and well-articulated. The bass is authoritative yet controlled, with a sense of depth that gives solidity to the entire range.

Mids: This Raytheon's strong point. The mids are dense, natural, and nuanced, with vocals rendered with exceptional credibility and substance.

Highs: Smooth and well-integrated, never aggressive. The high end is present but well-mannered, allowing for extended listening without fatigue.

Dynamics: Smooth and composed. Transient response is natural, with a smooth progression that prioritizes musicality over artificial impact.

Soundstage: Stable and well-proportioned soundstage, with excellent instrument separation and precise focus.

🎧 Use in Hi-Fi Amplifiers

Ideal as a line valve, driver, or preamp stage in high-quality hi-fi amplifiers and preamps. Its low noise and good balance also make it suitable for high-resolution systems.

🎸 Use in Music Applications

Also appreciated in the musical field for its warm and controlled character, perfect where a balanced response and a rich harmonic output are desired.

🎯 Note for audiophiles and technicians

  • produced in the USA in 1958,
  • VERY STRONG header ,
  • balanced ,
  • with low noise & low microphonics ,
  • selected for higher-level applications.

A tube that best expresses the classic American Raytheon character, designed for those seeking musicality, reliability and an authoritative timbre , in full Vacuum Tubes Treasures style.

Test Results:

Valve tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V, Vg = -8.5V
  • Average 100%: Gm = 2200 ; Ia = 10.5 mA
  • Test Result: VERY STRONG

Valve:

  • Section 1: Gm = 1900 ; Ia = 9.6 mA
  • Section 2: Gm = 1900 ; Ia = 9.8 mA

Additional Tests Performed:

  • Microphonics: Low. Tested and approved for use in hi-fi, including phono stages and guitar amplifiers. Also suitable for V1.
  • Balance: The sections are coherent and well aligned, making the valve also suitable for use as a phase inverter in hi-fi and instrumental applications.
  • Functionality: Fully operational.
  • Output Quality: Excellent – ​​Very strong and stable output, no fluctuations.
  • Short circuits and GAS: Absent.

Conditions:

  • Condition: Vintage tubes - Tested and in perfect working order. Shipped in our custom box for optimal protection.
  • Cosmetic condition: Excellent – ​​Excellently preserved lettering, minimal signs of wear. See photos for details.
  • Manufacturing Code: 280 58-17 → 280 indicates the manufacturer, i.e., Raytheon Mfg. Company, Newton 58, Mass. - 58-17 → RMA/EIA Open Date Code → manufactured week 17, 1958

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.

Vacuum Tubes Treasures
www.vtt.store | www.vacuumtubestreasures.com
📧 info@vacuumtubestreasures.com

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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.

  • ATTENTION PLEASE

    We wish to inform you that any attempts to manipulate shipping destination information in order to obtain lower shipping rates may be considered fraudulent acts. Please provide accurate information and contact us if you have any concerns. We reserve the right to review and, if necessary, cancel orders that we deem to be in violation of our conditions. Thank you for your understanding and cooperation.