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GE

12AX7 / ECC83 GE NOS Short Gray Plates Halo Getter Tested Tube Made in USA

12AX7 / ECC83 GE NOS Short Gray Plates Halo Getter Tested Tube Made in USA

294,00 RON
294,00 RON
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12AX7 / ECC83 GE NOS Short Gray Plates Halo Getter Made in USA

AMPLITREX Tested – Low Noise & Microphonics

Description:

This 12AX7 / ECC83 GE – General Electric NOS, Made in USA production, is a single tube selected and tested for audio applications where construction quality, stability, and low noise are fundamental elements.

The 12AX7 / ECC83 is one of the most widely used and sought-after preamplifier tubes in the hi-fi and music world. In this GE American version, with short gray plates and halo getter construction, it offers the solid and reliable character typical of vintage US productions.

The internal structure consists of short gray plates, a 9-pin miniature glass bulb, and a top halo getter. The code 12AX7 and the U.S.A. marking are still legible on the glass, in typical GE style. The screen printing is worn and shows normal wear from long vintage storage, consistent with a vintage NOS tube.

This tube comes with Vacuum Tubes Treasures protective packaging and has been tested on an Amplitrex AT-1000 Tube Tester, resulting in Low Noise & Microphonics, a particularly important characteristic for use in preamplifiers, line stages, drivers, and compatible phono applications.

Sound Characteristics

The 12AX7 / ECC83 GE offers a balanced, clean, and concrete sound reproduction, with a good ability to maintain order and control even in the most sensitive circuits. The overall character is that of a reliable, musical, and well-focused American tube.

Bass
The low register is controlled, dry, and well-defined. It does not tend to artificially inflate the low end but offers a solid and orderly foundation, useful for maintaining precision and rhythm.

Mids
The mids are clear, present, and easily discernible. Vocals sound natural and correctly positioned, with good intelligibility and a balanced timbre, without excessive warmth or intrusive colorations.

Highs
The high range is clean, composed, and well-integrated. The extension is good, with an orderly rendition that favors definition and control, avoiding harshness in properly designed circuits.

Dynamics
The dynamic response is prompt and stable. This GE conveys a sense of control and reliability, with well-managed transients and a good ability to follow musical variations without losing coherence.

Soundstage
The soundstage is focused and orderly, with precise instrument separation and an overall stable presentation. The result is a credible, clean, and well-controlled reproduction.

🎧 Use in Hi-Fi Amplifiers

This 12AX7 / ECC83 GE NOS is suitable for compatible hi-fi equipment, preamplifiers, line stages, drivers, and phono sections where the 12AX7 / ECC83 is specified by the design.

The Low Noise & Microphonics selection makes it particularly interesting for sensitive audio applications, where quietness, stability, and signal purity are fundamental aspects.

🎸 Use in Musical Instrument Amplifiers

In compatible instrument amplifiers, this GE can offer a balanced, defined, and controlled response. It is suitable for those seeking a 12AX7 with a classic American character, good clarity, stable dynamic response, and predictable behavior.

It can be used in preamplification positions, drivers, or compatible gain stages, always respecting the equipment's specifications.

🎯 Note for Audiophiles and Technicians

This tube represents a credible and interesting American GE NOS selection: Made in USA, short gray plates, halo getter, tested on Amplitrex AT-1000, and selected for Low Noise & Microphonics.

The wear of the screen printing is consistent with long vintage storage and does not affect the verified electrical quality. This is not just a generic 12AX7, but a selected, tested, American NOS tube ready for use in compatible circuits where reliability, musicality, and operational stability are required.

Test Results:

Tube tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V ; Vg = -2V
  • Average 100%: Gm = 1600 ; Ia = 1.2 mA
  • Test Result: VERY STRONG

Tube :

  • Section 1: Gm = 1600 ; Ia = 1.3 mA
  • Section 2: Gm = 1700 ; Ia = 1.5 mA
Additional Tests Performed:
  • Microphonics: Low. Tested and suitable for use in hi-fi and guitar amplifiers, including V1.
  • Balance: The sections are consistent and well-aligned, making the tube suitable for use as a phase inverter in hi-fi and instrument applications.
  • Emission Quality: Excellent – Very strong and stable emission, without fluctuations.
  • Shorts and GAS: Absent.

Condition:

  • Condition: Vintage Tubes - Tested and fully functional. Supplied in our custom box for optimal protection.  
  • Functionality: Perfectly operational.
  • Aesthetic condition: Fair – Markings almost completely gone. See photos for details.
  • Manufacturing Code: undecipherable – General Electric Company, Syracuse 1, N. Y., production, identifiable by 1960s construction characteristics

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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.