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RAYTHEON

12AX7 ECC83 Baldwin by Raytheon – Long Black Plates Halo Getter Matched Trio Tubes USA 1961

12AX7 ECC83 Baldwin by Raytheon – Long Black Plates Halo Getter Matched Trio Tubes USA 1961

€179,70 EUR
€179,70 EUR
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12AX7 ( ECC83 ) Baldwin by RAYTHEON Long Black Plates Halo Getter Matched Trio Tubes Made in USA '61

Description:

The matched trio of 12AX7 Raytheon Long Black Plates labeled Baldwin , manufactured in the USA in 1961, represent an ideal configuration for three-stage tube preamplifiers or for use in dual mono stereo amplifiers, where tonal uniformity, dynamic coherence and refined musical response are required.

These tubes, selected with long black plates and "O"-shaped getters, offer a rich, precise and three-dimensional sound, with a tonal balance that combines naturalness and detail. The Raytheon sound signature is recognized for the refinement in the restitution of micro details , combined with a full but never intrusive harmonic presence .

Bass : dry but well present, with a fast and precise response. No bloat, just control and articulation.

Mids : elegant, transparent and musical. Voices emerge naturally, and harmonic instruments maintain body and roundness without excessive coloration.

Highs : extended and delicate, with a bright but never fatiguing rendering. The high range is airy and returns the detail with fluidity.

Dynamics : balanced and reactive, able to follow signal variations promptly and fluidly, without ever compressing or forcing.

Soundstage : wide and well distributed. The stereo image is solid, with excellent depth and separation, ideal even in three-channel or separate-stage configurations.

These matched tubes are a reference choice for those who want an open, coherent, and mature sound , with a refined musical presentation, perfect for advanced hi-fi, handcrafted preamps, and professional recording applications.

🎸 Use in Guitar and Bass Amplifiers

The 12AX7 Raytheon labeled Baldwin is a tube highly appreciated also in the musical field for its balance between detail and musicality. In guitar preamps, it delivers a transparent sound, rich in harmonics, with a controlled attack and a prompt dynamic response , making it ideal for both clean styles and light dynamic crunch.

This matched trio is perfect for three-stage amplifiers (like the Fender Deluxe Reverb or Marshall JCM800), where the coherence between the tubes ensures tonal consistency and greater definition throughout the signal path .

🔊 Ideal for musicians looking for:

✅ Clean and articulated, with a natural and never sterile timbre
✅ Defined overdrives, never muddy, with great separation between notes
✅ Dynamic control, useful for playing with your fingers or for using the volume potentiometer
✅ Excellent headroom and tonal stability even at high volumes

🎸 Recommended amplifiers:

  • Fender Deluxe Reverb / Vibrolux / Bassman – For clean but musical sounds, from jazz to blues

  • Marshall JTM45 / JCM800 – In the early stages of gain helps maintain clarity and structure

  • Mesa Boogie Mark Series – Excellent definition and headroom, even in high saturation contexts

  • Boutique amps (Dr. Z, Carr, Matchless) – For harmonically rich yet controlled sounds

🎯 Note for professional musicians :
The coherent behavior of this matched trio allows for a stable, well-controlled and surprise-free sound reproduction, ideal in the studio or in live performances where every detail counts.

Test Results:

Valve tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V ; Vg = -2V
  • Average 100%: Gm = 1600 ; Ia = 1.2 mA
  • Test Result: VERY STRONG

Valve 1:

  • Section 1: Gm = 1500 ; Ia = 0.9 mA
  • Section 2: Gm = 1500 ; Ia = 0.9 mA

Valve 2:

  • Section 1: Gm = 1400 ; Ia = 0.8 mA
  • Section 2: Gm = 1500 ; Ia = 0.9 mA

Valve 3:

  • Section 1: Gm = 1500 ; Ia = 0.8 mA
  • Section 2: Gm = 1400 ; Ia = 0.8 mA
Additional Tests Performed:
  • Microphonics: Low. Tested and approved for use in hi-fi and guitar amplifiers.
  • Output Quality: Excellent – Very strong and stable output, no fluctuations.
  • Short circuits and GAS: Absent.

Conditions:

  • Condition: Vintage - Tested and working - Supplied in our custom box for optimum protection.
  • Functionality: Fully functional.
  • Cosmetic Condition: Good – Lettering partially eroded, but still legible. Valve body in good condition. See photos for details.
  • Manufacturing Code: P28061-17C - Manufacturing RAYTHEON - 17th week of 1961

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.

  • 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.