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SYLVANIA

6V6GT SYLVANIA Matched Pair - Smoked Glass - Chrome Top - Black Plates - USA - Amplitrex Tested

6V6GT SYLVANIA Matched Pair - Smoked Glass - Chrome Top - Black Plates - USA - Amplitrex Tested

47.500 HUF
47.500 HUF
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6V6GT SYLVANIA Matched Pair – Smoked Glass – Black Plates – Halo Getter – Matched Pair – Made in USA ‘60s

VACUUM TUBES TREASURES Selection – Low Noise & Microphonics

General Description

This pair of 6V6GT SYLVANIA Made in USA, carefully selected and offered as a Matched Pair, represents one of the most authentic expressions of mid-century American production.

The tubes are identifiable with certainty by their construction characteristics, typical of Sylvania:

  • Smoked Glass
  • Chrome Top
  • Black Plates

An extremely popular configuration, both for its collectible appeal and sound performance, which places this pair among the most interesting variants of the 6V6 family.

The markings and manufacturing code are not present, as is often the case with vintage specimens, but identification remains clear and reliable thanks to the internal construction.

Sonic Characteristics

Bass: Full and round, with a slightly softer structure compared to other productions, but always well controlled.

Mids: Rich and textured, with a very musical and engaging delivery. Excellent presence on vocals.

Highs: Sweet and never aggressive, with a relaxed texture that encourages prolonged listening.

Dynamics: Natural, with a progressive and musical response, ideal for those seeking fluidity rather than aggressiveness.

Soundstage: Wide and airy, with good depth and separation.

🎧 Use in Hi-Fi Amplifiers

Suitable for 6V6 amplifiers where a warm, soft, and musical sound is desired, with great listening pleasure.

🎸 Use in Musical Applications

Also very interesting for guitar amplifiers:

offers a gradual breakup, natural compression, and a typically American vintage character.

🎯 Note for Audiophiles and Technicians

The Sylvania Smoked Glass Chrome Top are less common than other variants and represent a distinctive choice for those seeking balanced, refined, and non-fatiguing tonality, with solid and recognizable construction.

Test Results:

Tube tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V; Vg2 = 250V; Vg = -12.5V 
  • Measurements taken after 10 minutes of warm-up.
  • 100% Average: Gm = 4.1 ; Ia = 45 mA
  • Test Result: VERY STRONG

Tube 1: Gm = 3.9 ; Ia = 38.0 mA

Tube 2: Gm = 3.2 ; Ia = 39.6 mA

Additional Tests Performed:
  • Microphonics: Low. Tested and compliant for hi-fi use even in phono stages and guitar amplifiers.
  • Emission Quality: Excellent – Very strong and stable emission, without fluctuations.
  • Shorts and GAS: Absent.

Condition:

  • Condition: Vintage Tubes - Tested and perfectly working. Supplied in our custom box for optimal protection. 
  • Functionality: Perfectly operational, with excellent test results.
  • Cosmetic Condition: Very Good – no obvious defects. See photos for details.

Manufacturing code: absent, identifiable by constructive characteristics. 1960s

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.