1 17

RCA

6V6GT RCA Silver Label AMPLITREX Tested Tube Black Plate DD Getter Made in USA '59

6V6GT RCA Silver Label AMPLITREX Tested Tube Black Plate DD Getter Made in USA '59

350.00 ILS
350.00 ILS
Sale Sold out
Shipping calculated at checkout.

6V6GT RCA Silver Label – Black Plates – Double D Getter – Made in USA ‘59

AMPLITREX Tested – Low Noise & Microphonics

General Description

We offer a 6V6GT RCA Silver Label, manufactured in the United States in 1959, identified by the manufacturing code LM, typical of American production of the era.

This tube represents one of the most authentic expressions of RCA's 1950s production, with solid construction and high-quality materials.

Construction features:

  • Black Plates
  • Double D Getter
  • robust and well-finished internal structure

A classic configuration, highly appreciated for reliability and sound performance.

Sound Characteristics

RCA 6V6GTs are known for their natural and engaging musicality.

Bass: Warm and well-controlled, with good presence.

Mids: Rich and harmonic, with a very musical vocal rendition.

Highs: Soft and never fatiguing.

Dynamics: Progressive and pleasant, also ideal for prolonged listening.

Soundstage: Balanced, with good coherence between sound planes.

🎧 Use in Hi-Fi Amplifiers

Perfect for:

  • vintage amplifiers
  • single-ended and push-pull systems

Offers:

  • classic American tonality
  • overall balance
  • reliability even with continuous use

🎸 Use in Musical Applications

Suitable for:

  • guitar amplifiers
  • 6V6-based circuits

Guarantees:

  • natural dynamic response
  • gradual and musical breakup
  • warm and round sound

🎯 Note for Audiophiles and Technicians

  • Production RCA USA 1950s
  • Version Silver Label
  • Black Plates + Double D Getter
  • Tested Amplitrex – VERY STRONG

A used tube but still performing and musical, ideal for those who want to experience the vintage RCA sound with excellent value for money.

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.
  • Average 100%: Gm = 4.1 ; Ia = 45 mA
  • Test Result: VERY STRONG

Tube : Gm = 4.36 ; Ia = 40 mA

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

Condition:

  • Condition: Vintage Tubes - Tested and fully functional. Supplied in our custom box for optimal protection. 
  • Functionality: Perfectly operational, with excellent test results.
  • Cosmetic Condition: Excellent – Markings are well preserved, minimal signs of age. See photos for details.

Manufacturing code: 

  • LM → two-letter code → September 1959 production

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

View full details

  • 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.