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AMPEREX

5AR4 ( GZ34 ) NOS AMPEREX Bugle Boy, Holland f33, smooth, Same codes, Matched Pair Tubes Rectifiers Made in HOLLAND

5AR4 ( GZ34 ) NOS AMPEREX Bugle Boy, Holland f33, smooth, Same codes, Matched Pair Tubes Rectifiers Made in HOLLAND

€589,00 EUR
€589,00 EUR
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Taxes included. Shipping calculated at checkout.

5AR4 ( GZ34 ) NOS AMPEREX Bugle Boy, Holland f33, smooth, Same codes, Matched Pair Tubes Rectifiers
Made in HOLLAND

This pair of NOS AMPEREX Bugle Boy 5AR4 (GZ34) tubes are renowned for their excellent sonic qualities. These tubes are prized for their openness and reliability, similar to Mullards but with a wider opening characteristic, which contributes to a more detailed and spacious. They were produced in Mazda's factory in Brussels in 1951 and are renowned for their rich sound and ability to significantly improve the audio quality of amplifiers and hi-fi systems. They offer an excellent balance between deep bass and clear highs , producing a very satisfying and versatile overall listening experience, suitable for various musical genres. Their sturdy construction and refined build quality make them an excellent choice for audiophiles and sound professionals looking to optimize the performance of their audio equipment .

AMPEREX Brussels plant production

MANUFACTURE CODE: f33 L1E

Reboxed in our custom white box

Tubes tested on FUNKE W19 Tube tester:
Voltage Test: Va = 60V, Vf = 5V
Good from: Ia 55 mA
Average 100% Ia = 100 mA
Test Result: VERY STRONG

Plate current:

Valve 1:
Section 1: Ia = 100 mA
Section 2: Ia = 100 mA

Valve 2:
Section 1: Ia = 99 mA
Section 2: Ia = 99 mA

Further tests performed:
Microphone Test
Emission Quality
Short Circuit Test

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.