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RCA

5Y3 GT ( 5Z2P ) RCA NOS NIB Black Plates Square Getter Matched Pair Tubes Rectifiers Made in USA '64

5Y3 GT ( 5Z2P ) RCA NOS NIB Black Plates Square Getter Matched Pair Tubes Rectifiers Made in USA '64

€89,80 EUR
€89,80 EUR
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5Y3 GT ( 5Z2P ) RCA NOS NIB Black Plates Square Getter Matched Pair Tubes Rectifiers Made in USA '64

Description:

This matched pair of 1964 RCA NOS NIB 5Y3 GTs , with Black Plates and Square Getter , represents one of the most appreciated rectifiers for its musical, sweet and natural response . RCAs of this era are known for their smooth and progressive rectification , which contributes to a warm, dynamic sound with an authentic vintage character .

  • Low range: Soft and round , with a harmonious and controlled bass, without excessive rigidity. It offers a fluid reproduction and well integrated with the rest of the sound spectrum.
  • Midrange: Warm and natural , with an organic character and rich harmonics . The midrange frequencies are balanced , giving an open and musical sound, ideal for emphasizing the nuances of instruments and voices.
  • Highs: Silky and refined , with a soft and non-aggressive brilliance. The highs are clear and detailed , without harshness, maintaining a transparent and non-fatiguing performance.
  • Dynamics and Transient Response: Natural, progressive compression that smooths out harshness in the sound, providing a smooth, musical delivery. This helps reduce any harshness in more aggressive amplifiers, giving a more relaxed, natural feel.

Thanks to their stable and musical rectification , these 5Y3 GT RCA Black Plates are particularly suitable for:

  • Vintage hi-fi amplifiers , where they offer a stable voltage and a smooth, detailed sound, enhancing the musicality of the system.
  • Guitar amplifiers , which provide natural compression , emphasizing the warmth and fluidity of the dynamic response .
  • High-end audio systems , where a matched pair of rectifiers helps maintain symmetrical, artefact-free rectification , improving tonal coherence.

Being a NOS NIB matched pair, these tubes **guarantee maximum reliability.

Test Results:

Valve tested on Funke W19 Tube Tester:

  • Test Conditions: Va = 100V ; Vf = 5V
  • Average 100%: Ia = 77.5 mA
  • Test Result: VERY STRONG

Valve 1:

  • Section 1: Ia = 95 mA
  • Section 2: Ia = 90 mA

Valve 2:

  • Section 1: Ia = 90 mA
  • Section 2: Ia = 90 mA
Additional Tests Performed:
  • Microphonics: Standard. Tested and compliant 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: New Old Stock - New In Box - Tested & Working - In Original Box.
  • Functionality: Fully functional.
  • Aesthetic condition: Excellent – Perfectly preserved writing, minimal signs of wear. See photos.
  • Manufacturing Code: AB - AF - March and July 1964 respectively

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.

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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.