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GE

12AX7 / ECC83 GE Long Gray Plates Horse Shoe Getter - Low Noise & Mic - Made in USA

12AX7 / ECC83 GE Long Gray Plates Horse Shoe Getter - Low Noise & Mic - Made in USA

€54,90 EUR
€54,90 EUR
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12AX7 / ECC83 GE Long Gray Plates Horse Shoe Getter - Low Noise & Mic - Made in USA

AMPLITREX Tested – Low Noise & Microphonics - Vintage American Long Plates

Description:

This 12AX7 / ECC83 General Electric, Made in USA production, represents one of the most interesting configurations of vintage American small signal tube manufacturing.

The construction with Long Gray Plates and characteristic Horse Shoe Getter belongs to the early generations of GE ECC83s, a configuration generally attributable to the second half of the 1950s, preceding the more common halo getter versions of subsequent years.

The absence of the original silk-screened logo prevents a precise dating through manufacturing codes. However, based on the constructive characteristics, internal structure, and the particular horse shoe getter, this tube can be cautiously attributed to a probable late 1950s production.

This is a used tube, carefully tested and selected in our laboratory using the AMPLITREX AT-1000 Tube Tester, found to be STRONG, with low background noise and good operational stability.

The GE Long Gray Plates from this period are particularly appreciated for the constructive quality typical of American production of the era and for their balanced and musical sonic character.

Sonic Characteristics

The early GE Long Gray Plates with Horse Shoe Getter are known for a natural, well-articulated, and very pleasant sonic presentation.

The sound signature prioritizes balance, timbral correctness, and good readability of the musical message, while maintaining the warm and credible character typical of the best vintage American productions.

Bass

The bass range is well-controlled and natural, with a good sense of solidity and an always orderly and coherent presentation.

Mids

The mids are clear, well-focused, and musical. Vocals maintain naturalness and presence, while acoustic instruments retain a balanced harmonic texture.

Highs

The high range is open and well-extended, with present but never aggressive detail. Listening remains fluid and pleasant even for long sessions.

Dynamics

The dynamic response is linear and natural, with a good ability to follow musical variations without stiffness or perceptible compression.

Soundstage

The soundstage appears stable and well-organized, with correct instrument separation and good perception of space.

🎧 Use in Hi-Fi Amplifiers

This 12AX7 / ECC83 GE is particularly suitable for:

  • hi-fi preamplifiers
  • line stages
  • compatible phono stages
  • integrated amplifiers
  • compatible driver stages

The Low Noise & Microphonics selection makes it particularly interesting for circuits where quietness and operational stability are important aspects.

🎸 Use in Musical Applications

In musical instrument amplifiers, this GE Long Gray Plates offers:

  • balanced and natural response
  • good harmonic definition
  • musical and well-present mids
  • stable and predictable behavior

A vintage American configuration that lends itself very well to both vintage amplifiers and compatible boutique creations.

🎯 Note for Audiophiles

This 12AX7 / ECC83 GE Long Gray Plates Horse Shoe Getter Made in USA represents a vintage American selection of considerable interest for those seeking:

  • authentic General Electric USA production
  • Long Gray Plates structure
  • rare Horse Shoe Getter
  • Low Noise & Microphonics
  • good internal balance
  • musicality typical of American ECC83s from the 1950s

The classification is STRONG, with a regular electrical profile, stable emission, and well-aligned sections.

A tube that retains the charm of early GE long plate productions, selected according to Vacuum Tubes Treasures standards.

Test Results

Tested on AMPLITREX AT-1000 Tube Tester

Voltage Test: Va = 250V, Vg = -2V
Average 100%: Gm = 1600 ; Ia = 1.2 mA
TEST RESULT: STRONG

Tube:

  • Section 1: Gm = 1400 ; Ia = 0.8 mA
  • Section 2: Gm = 1300 ; Ia = 0.7 mA

Additional Tests performed:
  • Microphonics: Low Noise & Microphonics – Tested and suitable for use in hi-fi systems and guitar amplifiers.
  • Balance: The sections are consistent and well-aligned, making the tube suitable also for use as a phase inverter in hi-fi and instrument applications.
  • Emission Quality: Good Emission – Good and regular emission, suitable for any application
  • Short Circuits and GAS: Absent.

Condition:

  • Condition: Vintage Tubes - Tested and perfectly functional. Supplied in our custom box for optimal protection. 
  • Functionality: Perfectly operational.
  • Cosmetic condition: Fair – Markings completely worn off. See photos for details.

Manufacturing Code: absent, identifiable by construction characteristics. Late 1950s → General Electric Company, Syracuse 1, N. Y.

Discover why our tubes 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.