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GE

5Y3GT / 5Z2P GE NOS Black Plate G-D Getter Tube Rectifier Made in USA

5Y3GT / 5Z2P GE NOS Black Plate G-D Getter Tube Rectifier Made in USA

343,00 DKK
343,00 DKK
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5Y3GT / 5Z2P GE NOS Gray Plates D Getter Tube Rectifier Made in USA

Funke W19 Tested – VERY STRONG - Vintage American General Electric Production

Test Results:

Tube tested on Funke W19 Tube Tester:

  • Test Conditions: Va = 100V ; Vf = 5V
  • 100% Average:  Ia = 77.5 mA
  • Test Result: VERY STRONG

Tube :

  • Section 1: Ia = 90 mA
  • Section 2: Ia = 87 mA
Additional Tests Performed:
  • Emission Quality: Excellent – Very strong and stable emission, without fluctuations.
  • Short Circuits and GAS: Absent.

Description:

This General Electric 5Y3GT NOS, manufactured in the United States in the 17th week of 1958, is an authentic American rectifier from the golden age of tube production. The construction with gray plates, characteristic D getter, GT bulb and octal base reflects the robustness and construction accuracy traditionally associated with General Electric tubes.

The test performed on the Funke W19 detected values of 90 mA and 87 mA, both clearly above the 100% average. The result confirms a very strong, stable, and even emission, particularly significant for a tube produced over sixty years ago and preserved in excellent electrical condition.

The difference of only 3 mA between the two sections also highlights an excellent internal balance, an important feature for achieving uniform rectification and reliable power supply operation. Additional checks confirmed the complete absence of short circuits and gas.

The 5Y3GT is a full-wave rectifier used in the power supplies of numerous guitar amplifiers, radio devices, hi-fi systems, and vintage tube electronics. It can also be used in equipment designed for the equivalent 5Z2P rectifier, after verifying the manufacturer's specifications.

The original markings GE Electronic Tube, the EIA code 188 and the production code of 1958 clearly document its American General Electric origin. A NOS tube that combines proven origin, fine vintage construction with a D getter, emission well above average, and well-balanced sections: a quality choice for careful restorations and compatible tube equipment.

Condition:

  • Condition: NOS - New Old Stock - Tested and working - Supplied in our custom box for optimal protection. 
  • Functionality: Perfectly operational.
  • Aesthetic condition: Very Good – Markings clearly legible with slight signs of age. See photos for details.
  • Manufacturing Code: 58-137 188 → RMA/EIA Open Date Code → manufactured in the 17th week of 1958 - 188 → General Electric Company, Syracuse 1, N. Y.

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
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