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WESTINGHOUSE

12BH7A WESTINGHOUSE Black Plates Horse Shoe Getter USA 1960s AMPLITREX Tested

12BH7A WESTINGHOUSE Black Plates Horse Shoe Getter USA 1960s AMPLITREX Tested

HK$416.00 HKD
HK$416.00 HKD
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12BH7A WESTINGHOUSE Black Plates Horse Shoe Getter – Made in USA – 1960s

AMPLITREX Tested – STRONG – Low Noise & Microphonics – Vintage American WESTINGHOUSE Production

Test Results

Tubes tested on AMPLITREX AT-1000 Tube Tester

Test Conditions: Va = 250V, Vg = -10.5V
Average 100%: Gm = 3.10 ; Ia = 11.5 mA
Test Result: STRONG

Tube:
  • Section 1: Gm = 2.4 ; Ia = 7.8 mA
  • Section 2: Gm = 2.6 ; Ia = 9.9 mA

Additional Tests Performed

  • Burn-in / Stability Test: 48h – OK
  • Microphonics: Low. Tested and suitable for use in hi-fi equipment and guitar amplifiers, even in the most sensitive audio stages.
  • Balance: The sections are not perfectly aligned. The tube is suitable for use in hi-fi in non-critical stages (input or driver) and in guitar amplifiers. Not suitable as a phase inverter or in applications requiring rigorous balance between sections.
  • Emission Quality: Strong – Strong and regular emission, suitable for any application.
  • Shorts and GAS: Absent.

Description:

Interesting 12BH7A WESTINGHOUSE, vintage American production attributable to the 1960s, characterized by the sought-after Black Plates with Horse Shoe Getter construction, a configuration representative of the robust American productions of the era.

The 12BH7A is a dual triode particularly appreciated in driver and line stages for its good driving capability, robustness, and operational stability. This WESTINGHOUSE Made in USA example, with its characteristic Black Plates, represents an interesting choice for vintage hi-fi equipment and instrument amplifiers that use this type of tube.

The tube underwent a 48-hour burn-in / stability test and was then thoroughly tested in our laboratory using the Amplitrex AT-1000 Tube Tester, achieving a STRONG classification. It was also selected for Low Noise & Microphonics, with strong and regular emission, stable behavior, and absence of shorts or gas.

The two sections do not show a balance rigorous enough for applications requiring perfect symmetry. The tube is therefore particularly suitable for driver stages, line stages, and other non-critical positions, as well as in guitar amplifiers, but it is not the ideal choice as a phase inverter when a strict balance between sections is required.

From a sonic perspective, vintage American 12BH7As are appreciated for a solid, dynamic, and natural presentation, with well-present and controlled bass, full-bodied and defined mids, and a clean and well-articulated high range. The typical driving capability of the 12BH7A contributes to an energetic and authoritative reproduction in equipment designed for this tube.

The tube is Vintage Used, thoroughly tested and perfectly functional. The aesthetic condition is appropriate for its age and previous use, with partly faded or barely legible silk-screening and clear signs of time.

An authentic WESTINGHOUSE 12BH7A Black Plates Horse Shoe Getter Made in USA, truly tested and selected by Vacuum Tubes Treasures, ideal for those seeking a strong, quiet, and reliable vintage American 12BH7A.

Conditions

  • Condition: Vintage Tubes - Tested and fully functional. Supplied in our custom box for optimal protection.
  • Functionality: Fully operational.
  • Cosmetic condition: Adequate – Partly faded or barely legible markings, general aesthetic with clear signs of age. See photos for details.
  • Manufacturing Code: Code not decipherable. Production roughly attributable to the 1960s based on construction characteristics.

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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
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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.

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