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PHILIPS

E88CC ( 6922 ) PHILIPS Special Quality Halo Getter Tube Gold Pin Made in Holland '66

E88CC ( 6922 ) PHILIPS Special Quality Halo Getter Tube Gold Pin Made in Holland '66

€124,50 EUR
€124,50 EUR
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E88CC ( 6922 ) PHILIPS Special Quality Halo Getter Gold Pin Tube Made in Holland '66

Description:

The E88CC (6922) PHILIPS Special Quality represents one of the highest quality versions of the noval double triode series developed for professional, audio and high-precision instrument applications.
Produced in the PHILIPS plant in Heerlen (Holland) in January 1966 , this valve belongs to the SQ (Special Quality) selection, made with criteria of long life, electrical stability and low microphonics, intended for critical uses in measuring instruments, broadcast equipment and high-end hi-fi preamplifiers.
The construction with grey plates , halo getters and gold feet testifies to the Dutch company's attention to the reliability and purity of the electrical contact, reducing oxidation and improving signal transmission over time.
The specimen described here has been tested on Amplitrex AT-1000 with STRONG result, guarantee of full efficiency and linear behavior on both sections.

Sound Characteristics
Bass: precise, taut and quick in response, with excellent holding even in complex passages.
Mids: silky, transparent, and natural; voices are present but never intrusive, with a typically “neutral” and musical timbre.
Highs: extended, bright, and free of harshness. The balance between detail and sweetness is exemplary, in the best Heerlen tradition.
Dynamic: lively and proportionate, capable of rendering micro-contrasts with great fluidity.
Soundstage: wide, stable and three-dimensional, with excellent channel separation and depth of field.

🎧 Use in Hi-Fi Stereo Amplifiers
Ideal for high-end preamplifiers, DACs, phono stages and driver circuits where neutrality and tonal accuracy are critical.
Excellent compatibility with Conrad Johnson, Audio Research, Counterpoint, EAR, Copland, and other European school systems.

🎸 Use in Music Amplifiers
It is also highly appreciated in professional tube preamplifiers and heads, where it offers a detailed and noise-free sound, with a perfect balance between clarity and harmonic warmth.

🎯 Note for Audiophiles and Technicians
The acronym “E88CC / 6922 Special Quality” identifies a long-life version (over 10,000 hours), with reinforced grille, gold-plated feet and selected tolerances.
The Heerlen 1966 production is among the most sought after for its sonic balance and impeccable construction, becoming a reference for those who want a transparent, precise and musically refined valve.

Test Results

Tested on AMPLITREX AT-1000 Tube Tester

Voltage Test: Va = 90V, Vg = -1.2V
Average 100%: Gm = 12.5 ; Ia = 15 mA
TEST RESULT: STRONG

Valve :

  • Section 1 : Gm = 11.0; Ia = 10.6 mA
  • Section 2 : Gm = 11.0; Ia = 10.0 mA

Additional Tests Performed:
  • Microphonics: Low. Tested and approved for use in hi-fi, phono stages, and guitar amplifiers, including V1.
  • 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: Good – Lettering partially eroded, but still legible. Valve body in good condition. See photos for details.
  • Manufacturing Code: 7LB ⊿6A3 → 7Lx indicates an E88CC with the sequential progression of x - ⊿6A3 ⊿ → Heerlen (Holland), 6 (out of four digits) → 1966 - A → January - 3 → 3rd week of the month

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.