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GE

6SN7GT GE Black Plates Square Getter – Tested Pair – STRONG Issue – Made in USA '50s

6SN7GT GE Black Plates Square Getter – Tested Pair – STRONG Issue – Made in USA '50s

€129,00 EUR
€129,00 EUR
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6SN7GT GE Black Plates Square Getter – Tested Pair – STRONG Issue – Made in USA '50s

This pair of 6SN7GT General Electric , Made in USA, from the 1950s , belongs to one of the most appreciated and reliable American productions ever. The construction with black plates and square getters is typical of the superior quality GE series, known for mechanical solidity, stability over time and a very elegant sound reproduction.
The tubes are tested and have STRONG output , offering stable and consistent operation that conveys the feeling of a selected and valuable component from the first listen.

The valves are used, individually tested and offered as Tested Pair .
The identical manufacturing code (1-09) confirms the same production origin, even though it is not an electrically matched pair.

Bass
Compact, well-controlled, and authoritative. The low end is tidy and precise, with excellent rhythmic hold that lends structure and solidity to the musical message.

Medium
Rich, natural, and highly expressive. Vocals emerge with body and presence, while acoustic and jazz instruments benefit from a full, realistic harmonic texture.

High
Clean, silky, and well-integrated. The highs are refined, free of harshness, with an elegant brightness that favors long, relaxing listening sessions.

Dynamics
Fluid and composed. The response is prompt but always controlled, with natural microdynamics that bring the music to life without ever being aggressive.

Soundstage
Wide and stable. The soundstage is well-focused, with credible instrument separation and realistic depth.

🎧 Use in Hi-Fi Stereo Amplifiers

Ideal for:

  • preamplifiers and input stages,
  • drivers in single-ended and push-pull amplifications,
  • vintage and modern hi-fi systems that seek musicality and coherence.

The 50's GE signature is best expressed on jazz, vocal, classical and acoustic music.

🎸 Use in Instrument Amplifiers

Highly appreciated in:

  • guitar amplifiers and instruments using 6SN7,
  • vintage circuits and boutiques,
  • applications where balance, definition and character are sought.

They offer a full, controlled and harmonically rich sound.

🎯 Note for audiophiles and technicians

  • vintage American production of great prestige ,
  • robust and selected internal construction,
  • STRONG emission and stable behavior,
  • the classic GE sound , balanced, natural and authoritative.

A pair designed for those who want not just a valve , but an authentic and timeless sound experience , capable of enhancing quality amplification with elegance and musicality.

Test Results:

Valves tested on Amplitrex AT-1000 Tube tester :

  • Test Conditions: Va = 250V, Vg = -8V
  • Average 100% Gm = 2600 ; Ia = 9.0 mA

Valve #1:

  • Section 1: Gm = 2500 ; Ia = 8.2 mA
  • Section 2: Gm = 2200 ; Ia = 7.0 mA

Valve #2:

  • Section 1: Gm = 2300 ; Ia = 8.0 mA
  • Section 2: Gm = 1850 ; Ia = 6.5 mA
Additional Tests Performed:
  • Microphonics : Very Low. Tested and approved for use in hi-fi, including phono stages and guitar amplifiers. Also suitable for V1.
  • Output Quality: Excellent – 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.
  • Cosmetic condition: Excellent – Excellently preserved lettering, minimal signs of wear. See photos for details.
  • Manufacturing Code: 1-09 → RMA/EIA Open Date Code → manufactured week 9 of 1951

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.