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SYLVANIA

12AT7WA E81CC 6201 NOS SYLVANIA Matched Pair - Black Plates Halo Getter Made in USA

12AT7WA E81CC 6201 NOS SYLVANIA Matched Pair - Black Plates Halo Getter Made in USA

785,00 NOK
785,00 NOK
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12AT7WA ( E81CC 6201 ) NOS SYLVANIA Matched Pair - Black Plates Halo Getter Made in USA

Description:

This matched pair of 12AT7WA (E81CC / 6201) produced by Sylvania USA represents one of the most stable and refined military versions of the American 12AT7 series.
The abbreviation WA indicates the military qualification (JAN / Joint Army-Navy), with more stringent tolerance specifications than the standard version, intended for use in telecommunications, measuring instruments and professional audio equipment.

The black plate , halo getter construction and identical manufacturing codes ensure uniform behavior, long operating life and extraordinary tonal consistency between the two examples.
This is a NOS – New Old Stock pair, carefully matched for transconductance and anode current, ideal for precision hi-fi applications and balanced driver stages.

Sound Characteristics

Bass: Fast, precise, and well-articulated; the lower range is controlled and clean, with excellent rhythm and coherence.
Mids: clear and linear, with a natural and transparent rendering of voices and acoustic instruments.
Highs: refined, airy and never sharp; the frequency response is extended and perfectly balanced.
Dynamics: Lively and fluid, with excellent transient tracking and harmonic microdetails.
Soundstage: wide and stable, with excellent focus and realistic depth, typical of Sylvania construction.

🎧 Use in Hi-Fi Amplifiers

Perfect for preamps and driver stages of high-end amplifiers , where accuracy, low noise and coherence between channels are essential.
The combination of black plates and halo getter gives a balanced, transparent and musical timbre, ideal for high-resolution systems and for those seeking natural and fatigue-free listening.

🎸 Use in Music Amplifiers

Also excellent for boutique or studio guitar amplifiers , where they ensure fast dynamic response, low microphonics and a warm but defined harmonic character.
Ideal for V1 or driver positions for vintage Fender, Marshall or Matchless amplifiers.

🎯 Note for Audiophiles and Technicians

  • Sylvania USA Production – Military Specification WA/6201
  • Matched Pair – identical codes and balanced parameters
  • Black Plates – sturdy construction, natural tone
  • Halo Getter – stability and durability over time
  • Perfect for Hi-Fi, Broadcast and Studio applications

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 1:

  • Section 1: Gm = 5.9 ; Ia = 11.8 mA
  • Section 2: Gm = 5.4 ; Ia = 9.4 mA

Valve 2:

  • Section 1: Gm = 5.8 ; Ia = 11.6 mA
  • Section 2: Gm = 5.8 ; Ia = 11.3 mA
Additional Tests Performed:
  • Microphonics: Low. Tested and approved for use in hi-fi, including phono stages 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 working - Supplied in our custom box for optimal protection.
  • Functionality: Fully functional.
  • Cosmetic condition: Excellent – Excellently preserved lettering, minimal signs of wear. See photos for details.
  • Manufacturing Code: 7152 → RMA/EIA Open Date Code → manufactured week 52 of 1971

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.