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GE

6072 / 12AY7 NOS GE JG Matched Pair Black Plates Triple Mica Halo Getter USA ’60s - AMPLITREX Tested

6072 / 12AY7 NOS GE JG Matched Pair Black Plates Triple Mica Halo Getter USA ’60s - AMPLITREX Tested

€249,00 EUR
€249,00 EUR
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JG-6072 NOS GE – Black Plates – Triple Mica – Halo Getter – Matched Pair – Made in USA ‘60s

AMPLITREX Tested – VERY STRONG – Low Noise & Microphonics

Description:

We offer an excellent matched pair of JG-6072 NOS General Electric tubes, manufactured in the USA in the 1960s, belonging to the selected JG (Joint Army-Navy / military) version, synonymous with high quality standards and superior reliability.

These tubes represent one of the most appreciated variants of the 6072 / 12AY7 family, thanks to an extremely careful construction and high-level technical solutions:

  • Black Plates
  • Triple Mica (greater mechanical stability and reduced microphonics)
  • Halo Getter
  • robust and precise internal structure

The pair has been selected as a Matched Pair, with well-balanced internal sections, a characteristic particularly important for hi-fi and professional applications.

Tested with Amplitrex AT-1000, they are:

  • VERY STRONG
  • Low Noise & Microphonics

An ideal selection for sensitive systems and applications where noise must be minimized.

🎧 Use in Hi-Fi Amplifiers

The GE JG-6072 are known for an extremely natural, refined and musical performance.

Bass

Controlled and well-defined, with excellent articulation and no excess.

Mids

Extraordinarily natural and realistic. Vocals emerge with great presence and a warm but precise timbre.

Highs

Sweet, airy and never aggressive, with elegant and always musical extension.

Dynamics

Balanced and fluid, with a consistent and smooth response.

Soundstage

Wide and well-organized, with excellent separation and depth.

🎧 Use in Hi-Fi Amplifiers

Perfect for:

  • high-quality tube preamplifiers
  • phono stages
  • line stages and sensitive circuits

Thanks to the low noise and stability guaranteed by the Triple Mica structure, they are particularly suitable for the most critical positions in the circuit.

🎸 Use in Musical Amplifiers

Ideal for:

  • instrument preamplifiers
  • vintage-style circuits using 6072 / 12AY7

They offer a sound that is:

  • warm and dynamic
  • rich in harmonics
  • extremely musical and controlled

🎯 Note for Audiophiles and Technicians

  • GE military JG version
  • Triple Mica – Black Plates construction
  • Well-balanced sections
  • Low Noise & Microphonics selection

These tubes represent a high-level choice for those seeking:

  • timbral naturalness
  • silent operation
  • long-term reliability

A pair of great charm and quality, capable of offering an authentic and refined sound, perfect for hi-fi systems and professional applications where every detail counts.

Test Results

Tested on AMPLITREX AT-1000 Tube Tester

Voltage Test: Va = 250V, Vg = -4V
Average 100%: Gm = 1700 ; Ia = 3.0 mA
TEST RESULT: VERY STRONG

Tube 1:

  • Section 1: Gm = 1600 ; Ia = 2.6 mA
  • Section 2: Gm = 1600 ; Ia = 2.8 mA

Tube 2:

  • Section 1: Gm = 1600 ; Ia = 2.6 mA
  • Section 2: Gm = 1600 ; Ia = 2.7 mA

Additional Tests performed:
  • Microphonics and Noise: Low. Tested and suitable for hi-fi use, including phono stages and guitar amplifiers. Also suitable for V1.
  • Balance: The sections are consistent and well-aligned, making the tube suitable for use as a phase inverter in hi-fi and instrumental applications.
  • Emission Quality: Excellent – Very strong and stable emission, without fluctuations.
  • Shorts and GAS: Absent.

Condition:

  • Condition: NOS - New Old Stock - Tested and functional - Supplied in our custom box for optimal protection.
  • Functionality: Perfectly operational.
  • Aesthetic condition: Excellent – Markings are well-preserved, minimal signs of age. See photos for details.
  • Manufacturing Code: 60-22 188 → RMA/EIA Open Date Code → manufactured 22nd week of 1960 - 188 → General Electric Company, Syracuse 1, N. Y.

Discover why our tubes 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.