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SYLVANIA, RAYTHEON, TOSHIBA

12AX7 ECC83 Baldwin Selection - Sylvania, Raytheon, Toshiba - Very Strong Low Noise & Mic Tubes AMPLITREX Tested

12AX7 ECC83 Baldwin Selection - Sylvania, Raytheon, Toshiba - Very Strong Low Noise & Mic Tubes AMPLITREX Tested

€79,90 EUR
€99,90 EUR €79,90 EUR
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12AX7 ECC83 Baldwin Selection - Sylvania, Raytheon, Toshiba - Very Strong - Low Noise & Mic Tubes - AMPLITREX Tested

Description:

This mixed quartet of 12AX7 (ECC83) Baldwin Selection brings together three prestigious productions: Sylvania, Raytheon and Toshiba , all Baldwin branded and originally selected for professional applications.

This is a heterogeneous lot in terms of construction , but united by one key element: very high output, energetic sound response and marked musical character . It is not a matched set and was not created for laboratory symmetry, but for those seeking personality, push and lively sound behavior .

All tubes were individually tested on the AMPLITREX AT-1000 and rated VERY STRONG , with values well above average.

General response

Full, dynamic and authoritative sound, with a feeling of immediate energy and great presence.

The high output translates into headroom, impact and a prompt response , particularly appreciated in musical circuits.

Midrange: Rich and present, with a strong character that brings instruments and voices to the fore.

Each valve retains its own personality, making the lot ideal for experimenting and shaping the circuit's behavior.

Dynamics: Lively and responsive, with a response that follows touch and signal variation well.

Here, character prevails over perfection: these are valves that can be felt, not hidden .

🎸 Use in Musical Instrument Amplifiers

Particularly suitable for:

  • guitar amplifiers
  • positions V1, V2, gain stages, reverb
  • those looking for drive, character and immediate response

Ideal for:

  • blues, rock, jazz
  • energetic cleans and dynamic crunches
  • timbre experimentation between different preamplifier positions

Not recommended as a phase inverter or where absolute symmetry is required.

Composition of the lot

  • 2× Sylvania Baldwin – Long Gray Plates
  • 1× Raytheon Baldwin – Long Black Plates
  • 1× Toshiba Baldwin – Short Gray Plates, Red Tip

Serigraphs partially worn by time, fully consistent with their age and original use.

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:

Valve 1:

  • Section 1: Gm = 1600 ; Ia = 1.2 mA
  • Section 2: Gm = 1400 ; Ia = 0.8 mA

Valve 2:

  • Section 1: Gm = 1700 ; Ia = 1.1 mA
  • Section 2: Gm = 1400 ; Ia = 0.8 mA

Valve 3:

  • Section 1: Gm = 1800 ; Ia = 1.4 mA
  • Section 2: Gm = 1300 ; Ia = 1.0 mA

Valve 4:

  • Section 1: Gm = 1900 ; Ia = 1.5 mA
  • Section 2: Gm = 1700 ; Ia = 1.2 mA
Additional Tests Performed:
  • Microphonics: Low. Tested and approved for use in guitar amplifiers, including V1.
  • Balance: The sections have a moderate misalignment; this tube is suitable for use in non-critical stages (input/driver) and in guitar amplifiers. Not recommended as a phase inverter or where perfect balance between the sections is required.
  • 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.
  • Functionality: Fully functional.
  • Aesthetic condition: Good – Writings eroded or partially eroded, but still legible. Valve body in good condition. See photos for details.
  • Manufacturing Code: -

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
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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.