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AMPEREX

12AU7 / ECC82 NOS AMPEREX Matched Pair - Orange Globe Heerlen 1960 - Short Gray Plates - Balanced - Amplitrex Tested - Same Data Codes

12AU7 / ECC82 NOS AMPEREX Matched Pair - Orange Globe Heerlen 1960 - Short Gray Plates - Balanced - Amplitrex Tested - Same Data Codes

789,00 PLN
789,00 PLN
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12AU7 / ECC82 NOS AMPEREX Matched Pair - Orange Globe Heerlen 1960 - Short Gray Plates - Halo Getter - Balanced - MADE IN HOLLAND

Amplitrex Tested - Same Data Codes

General Description:

This pair of 12AU7 / ECC82 Amperex Orange Globe, produced in the historic Heerlen (Netherlands) factory in the 1960s, represents one of the most recognizable and appreciated expressions of the European school.

The combination of the Amperex brand, Heerlen construction, and iconic Orange Globe graphics gives these tubes a precise identity: tonal sophistication, balance, and natural musicality.

The pair is offered as a matched pair with the same manufacturing codes (Gf8 Δ0A3), an element of great value for constructive consistency and operational uniformity.

Key construction features:

  • Short Gray Plates
  • Halo Getter
  • Heerlen production – Made in Holland
  • 1960s
  • high-level European construction quality

Tested with Amplitrex AT-1000, they achieved:

  • Internal VTT Classification: VERY STRONG
  • Very strong and stable emission
  • Absence of shorts and GAS
  • Excellent balance between sections

A pair that stands out for consistency, reliability, and sound quality, perfectly in line with the expectations of Amperex Heerlen enthusiasts.

Sound Characteristics

Bass

Controlled and elegant, with a balanced presence that prioritizes precision and articulation over emphasis.

Mids

The true strength: natural, fluid, and rich in nuances. Voices emerge with realism and consistency, without artifice.

Highs

Open and refined, never aggressive. They offer detail and air while always maintaining a soft texture.

Dynamics

Balanced and progressive, with a response that favors musicality and naturalness rather than forced impact.

Soundstage

Well-organized, with a credible scene and good instrument separation.

🎧 Use in Hi-Fi Amplifiers

This pair fits perfectly into high-level hi-fi systems where one seeks:

  • tonal balance
  • timbral naturalness
  • absence of listening fatigue
  • consistency between registers

Particularly suitable for preamplifiers and driver stages where the quality of the 12AU7 significantly impacts the final result.

🎸 Use in Musical Applications

In musical contexts, these Amperex offer:

  • fluid and controlled response
  • excellent dynamic management
  • musical and never aggressive sound character

Ideal for those seeking definition and musicality without rigidity.

🎯 Note for audiophiles and technicians

  • Amperex Orange Globe – Heerlen (Holland)
  • 1960s – benchmark European production
  • Matched Pair – Same Data Codes Gf8 Δ0A3
  • Short Gray Plates – Halo Getter
  • Amplitrex Test – VERY STRONG
  • Stable emission – No GAS or shorts
  • Excellent balance between sections

A pair that fully embodies the 1960s Amperex Heerlen character:

  • refined, musical, and credible
  • carefully selected and verified
  • capable of concretely elevating listening quality

Test Results:

Tube tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V, Vg = -8.5V
  • Average 100%: Gm = 2200; Ia = 10.5 mA
  • Test Result: VERY STRONG

Tube 1:

  • Section 1: Gm = 2170; Ia = 10.4 mA
  • Section 2: Gm = 2100; Ia = 10.2 mA

Tube 2:

  • Section 1: Gm = 2000; Ia = 10.2 mA
  • Section 2: Gm = 2070; Ia = 11.4 mA

Additional Tests Performed:

  • Microphony: Low. Tested and suitable for hi-fi use, including phono stages and guitar amplifiers. Also suitable for V1.
  • Emission Quality: Excellent – Very strong and stable emission, without fluctuations.
  • Shorts and GAS: Absent.

Conditions:

  • Conditions: NOS - New Old Stock - Tested and working - Supplied in our custom box for optimal protection.
  • Functionality: Perfectly operational.
  • Cosmetic Conditions: Very Good – Legible lettering with slight signs of age, no obvious defects. See photos for details.
  • Manufacturing Code: Gf8 Δ0A3 - Gfx indicates an ECC82 with sequential progression of x, where the increment of x indicates manufacturing changes - Δ0A3 Δ → Heerlen (Netherlands), 0 (out of four digits) → 1960 - A → January - 3 → 3rd week of the month

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

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