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PHILIPS

7189 SHERWOOD by Philips – Heerlen 1963 – Gray Plates – rx4 – Matched Quad – Tested 100%

7189 SHERWOOD by Philips – Heerlen 1963 – Gray Plates – rx4 – Matched Quad – Tested 100%

€289,00 EUR
€289,00 EUR
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7189 SHERWOOD by Philips – Heerlen 1963 – Gray Plates – rx4 – Matched Quad – Tested 100% - Made in HOLLAND

Description:

This matched quartet of 7189 Sherwood by Philips , produced in Heerlen (Holland) in 1963 , belongs to the prestigious line made by Philips for Sherwood, one of the most reliable and musical combinations of the time.
This is the gray plates variant with factory coding rX4 , one of the most recognizable signatures of Heerlen productions from the early 60s, known for its stability, build quality and high-level sound reproduction.
The set was selected in our laboratory as a Matched Quad , with coherent electrical behavior and uniform timbre across all specimens. Bench testing confirmed 100% performance, with solid output, excellent linearity, and perfect operational stability.

Sound Characteristics
The 1963 Philips Heerlen 7189s are renowned for their combination of power, musicality and refinement.
The presentation is bright, defined and rich in micro-detail, with a tonal balance that places them among the best European interpretations of the EL84/7189 family.

Bass
Tight, fast, and compact. The low end is precise and controlled, without any bloat, with a powerful yet balanced response.

Medium
The strong point of Heerlen's production. Airy, transparent mids, rich in harmonics , with realistic and natural voices. Excellent performance on acoustic instruments, jazz, and vocal music.

High
Bright, silky, and well-extended. The highs are defined and fluid, without harshness, with a finesse typical of vintage Philips EL84s.

Dynamics
Lively, responsive, with excellent control at high volume.
The response is clean, stable, with great ability to follow transients and an energetic output without unwanted compression.

Soundstage
Wide, three-dimensional soundstage, with clear separation of musical lines. Excellent focus and depth, with a solid, well-layered image.

🎧 Use in Hi-Fi Stereo Amplifiers
Perfect for amplifiers:

  • Sherwood, Fisher and Scott of the time,
  • European amplifiers requiring 7189 for higher voltages,
  • systems where clarity, naturalness and dynamics are desired.

The quartet guarantees:

  • uniform timbre,
  • remarkable thermal stability,
  • higher headroom than common EL84s.

Ideal for jazz, vocal, classical, fusion and high definition listening.

🎸 Use in Music Amplifiers
In music, the 7189 is highly regarded in vintage high-voltage amps such as:

  • Gibson GA-series,
  • American amplifiers with hot cathode bias,
  • boutique projects requiring more robustness than standard EL84s.

They offer:

  • progressive and musical distortion,
  • great control over harmonics,
  • wider and cleaner headroom.

🎯 Note for audiophiles and technicians
This Matched Quad Heerlen 1963 rX4 features:

  • careful selection for uniform behavior,
  • 100% test,
  • operational stability and silence,
  • high-end historic Philips building,
  • Perfect compatibility with vintage devices that require real 7189s, not modern equivalents.

An ideal set for restoration, upgrade or use in high precision hi-fi amplifiers.

Test Results:

Valve tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V, Vg2 = 250V, Vg = -7.3V
  • Average 100%: Gm = 11.3 ; Ia = 48 mA
  • Test Result: VERY STRONG

Valve 1: Gm = 11.2 ; Ia = 48.4 mA

Valve 2: Gm = 11.0 ; Ia = 48.0 mA

Valve 3: Gm = 11.0 ; Ia = 48.0 mA

Valve 4: Gm = 11.4 ; Ia = 49.4 mA

Additional Tests Performed:
  • Microphonics: Low. 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.
  • Aesthetic condition: Very good – Clearly legible writing with minor signs of wear, no obvious defects. See photos for details.

Manufacturing Code:

  • rx4 Δ3A3 → rxx indicates a 7189 with the sequential progression of x, where the increment of x indicates the production changes - Δ3A3 Δ → Heerlen (Netherlands), 3 (out of four digits) → 1963 - A → January - 3 → 3rd week of the month
  • rx4 Δ3A2 → rxx indicates a 7189 with the sequential progression of x, where the increment of x indicates the production changes - Δ3A3 Δ → Heerlen (Netherlands), 3 (out of four digits) → 1963 - A → January - 2 → 2nd week of the month

Find out why our valves are different →

Condizioni di vendita e sicurezza

Anti-Tamper Security Seal Policy:
Each product is sealed to guarantee quality and integrity.
The right of withdrawal is subject to the seal remaining intact, as provided for by the Consumer Code.

Eco-Friendly Packaging:
The tube will be shipped with protective packaging to ensure safety during transport.
We use recycled and recyclable paper for packaging, along with brown ECO-KRAFT adhesive tape, eco-friendly and solvent-free.

Important Notes:
This tube, manufactured according to the standards of its era, is designed to operate in equipment compatible with vintage tubes.
It is recommended to follow standard safety guidelines to avoid malfunctions or damage.

Safety Assurance:
Although not tested according to modern GPSR regulations, this tube was designed to operate safely under the conditions for which it was manufactured.
We recommend using it only with equipment that supports vintage tubes, in order to avoid risks of malfunction or damage.
Technical data note:
In some cases, the technical data provided may be based on datasheets from other manufacturers or on equivalent historical specifications, when a specific official datasheet for the production batch of the listed item is not available.
Electrical characteristics may vary slightly depending on the production batch and manufacturing period, as is typical for thermionic components.

Safety Information:
Warning: Keep out of reach of children.
To be used under adult supervision.
Use the product only with equipment designed for vintage tubes.

Shipping & Returns

Shipping & Returns

Shipping Costs

Shipping costs vary depending on the total amount of the items in the cart and are calculated automatically during the checkout process.
All shipments are fully insured. The courier is automatically selected based on destination, weight, and shipment characteristics.

Shipping Times and Delivery

The indicated delivery times are purely indicative.
Any delays, storage issues, or operational changes made by the carrier (for example during peak periods such as holidays) are not attributable to Vacuum Tubes Treasures.

In such cases, we will nevertheless provide the Customer with all necessary support to open claims or assistance requests with the appointed courier.

International Shipping (Non-EU Countries)

For orders shipped to countries outside the European Union, any customs duties, import taxes, or additional charges are the sole responsibility of the recipient.
Vacuum Tubes Treasures has no control over these costs, which may vary from country to country. Customers are therefore advised to contact their local customs authorities prior to placing an order.

Warranty

All products sold by Vacuum Tubes Treasures are covered by the legal warranty of conformity, in accordance with Italian Legislative Decree No. 206/2005 (Consumer Code) and the Italian Civil Code (Articles 1490 et seq.), under the conditions set out below.

Warranty for Vacuum Tubes

Vacuum tubes, being components subject to wear and of vintage or specialized nature, are covered by a specific warranty of 6 (six) months from the date of delivery.
The warranty covers exclusively proven manufacturing or conformity defects that arise during proper use in accordance with technical specifications.

The warranty does not cover:

  • normal wear and tear,
  • subjective sound preferences,
  • use in incompatible equipment,
  • tampering or improper use.

Right of Withdrawal

Purchases made on the Vacuum Tubes Treasures website are governed by Italian regulations on distance contracts (Legislative Decree No. 206/2005).

Consumers have the right to withdraw from the contract within 14 (fourteen) days from the date of receipt of the goods, without providing any reason.

Conditions for Exercising the Right of Withdrawal

The right of withdrawal may be exercised only if:

  • the product has not been used,
  • the product is returned in its original condition,
  • the tamper-evident security seal is intact and not broken.

📌 Returns are not accepted for reasons related to sound preference, tube rolling, or subjective audio evaluation.
As with a music recording, a vacuum tube cannot be returned simply because its sound does not match personal taste.

Effects of Withdrawal

In the event of a valid withdrawal:

  • all payments received, including standard shipping costs, will be refunded,
  • refunds will be issued within 14 days from receipt of the returned goods,
  • the refund may be withheld until the goods have been received and inspected.

Refunds will be made using the same payment method used for the original transaction, unless otherwise agreed.

Return Shipping Costs

Return shipping costs are borne by the Customer, except in cases of:

  • verified defective products,
  • errors attributable to Vacuum Tubes Treasures.

In such cases, return shipping costs will be fully covered by us.

Damaged or Incorrect Items

If the Customer receives a damaged or incorrect item, it must be reported within 5 (five) working days from delivery, by email or telephone, clearly stating the issue.

Uncollected Parcels, Storage, and International Shipments

It is the Customer’s responsibility to monitor the shipment and promptly arrange for collection or customs clearance.
Any costs, delays, or losses resulting from:

  • failure to collect the parcel,
  • prolonged storage,
  • abandonment of the parcel at customs,

do not entitle the Customer to any refund.

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.