1 20

RCA

6L6GC RCA Black Plates Side Halo Getter – AMPLITREX Matched Pair – Made in USA – Like NOS

6L6GC RCA Black Plates Side Halo Getter – AMPLITREX Matched Pair – Made in USA – Like NOS

$321.00 USD
$321.00 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

6L6GC RCA Black Plates Side Halo Getter – AMPLITREX Matched Pair – Made in USA – Like NOS

Description:

This pair of 6L6GC RCA Black Plates , made in the USA , represents one of the most popular configurations of the historic American 6L6 family.

The black plate and side halo getter construction is typical of high-quality RCA products, known for their mechanical robustness, operational stability, and great sonic coherence. Black plates , in particular, are highly sought after by enthusiasts for their ability to deliver a rich, natural, and musically engaging tonal reproduction.

The tubes are used but in excellent operating condition , with Like NOS performance recorded during instrumental tests. They have been tested and selected in our laboratory on AMPLITREX AT-1000 , with VERY LOUD results, very high output indication and stable electrical behavior.

The pair has been matched (Matched Pair) to ensure good operational consistency in push-pull circuits.

Sound Characteristics

Bass: Deep, full, and very controlled. The low range is authoritative and well-structured, capable of solidly supporting the musical message without being excessive.

Mids: Warm, natural, and rich in harmonics. Vocals emerge with great presence and realism, while acoustic instruments and piano display a believable, three-dimensional timbral texture.

Highs: Smooth and refined. The highs are well-extended yet controlled, with a fine grain that retains detail without being aggressive.

Dynamics: Smooth and progressive. The dynamic response is natural, with good microdynamics and consistently coherent musical reproduction.

Soundstage: Wide and stable, with good depth and natural separation between instruments.

🎧 Use in Push-Pull Stereo Hi-Fi Amplifiers

These RCA 6L6GC Black Plates are ideal for amplifiers designed for:

  • 6L6GC
  • 6L6GB
  • 5881
  • other compatible variants of the 6L6 family

They are particularly suitable for hi-fi systems where you are looking for:

  • natural musicality
  • rich and realistic midrange
  • overall tonal balance

The Matched Pair configuration promotes stable and consistent output in push-pull circuits.

🎸 Use in Music Applications

Also highly prized in vintage and boutique guitar amplifiers , where RCA black plates are known for:

  • rich and harmonically complex mids
  • progressive dynamic response
  • warm and musical timbre

Qualities that contribute to an authentic and very musical vintage sound.

🎯 Note for audiophiles and technicians

  • RCA Production – Made in USA
  • Black Plates
  • Side Halo Getter
  • Matched Pair
  • AMPLITREX AT-1000 Tested
  • Operating Condition: Like NOS
  • VERY STRONG test

A pair of RCA 6L6GC Black Plates with Like NOS performance, professionally selected and verified, ideal for those who want the authentic sonic character of the great American productions combined with an accurate technical verification.

Test Results:

Tested on AMPLITREX AT-1000 Tube tester:
 Test Conditions: Va = 350; Vg2 = 250; Vg = -18V
Average 100% Gm = 5.2 ; Ia = 54.0 mA
TEST RESULT: VERY STRONG

Valve 1: Gm = 5.10 ; Ia = 69.0 mA
Valve 2: Gm = 4.96 ; Ia = 63.6 mA

Additional Tests Performed:
  • Microphonics: Standard. Tested and approved for use in hi-fi and guitar amplifiers.
  • Output Quality: Excellent – ​​Very 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: Fair – Signs of wear on the valve stem bases. See photos for details.

Manufacturing Code:

  • CS → two-letter code → production December 1969 - Radio Corporation of America, Camden, NJ
  • CT → two-letter code → production January 19670 - Radio Corporation of America, Camden, NJ

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

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.