GE 12AT7 / ECC81 Set PreampTubes 1970s - Tested

Superior Sound Supply selling some seriously special stock.

Up for sale is a strong, date-code matched trio (3 tubes) of new old stock (NOS) General Electric 12AT7 / ECC81 tubes. All three tubes come in their original GE boxes and were made in the USA. They have been professionally tested on our Precision 612 tester and are confirmed to have strong, balanced NOS-level emissions with no shorts, leaks, or noise issues. This is a perfect set for your guitar amp or hi-fi audio project.

Technical Specifications

• Brand: General Electric (GE)

• Model: 12AT7 / ECC81

• Quantity: 3 (Date-Code Matched Trio)

• Condition: NOS (New Old Stock )

• Country of Origin: USA

• Date Code: NE (All three tubes)

• Getter Type: Top Halo O-Getter

• Plates Type: Gray Plates

• Test Results: All tubes test strong at >90% (NOS levels).

• Testing: Passed all tests for shorts, opens, and leakage. Low noise.

Condition Details

These are true NOS tubes and present beautifully. The glass is clear and the pins are straight and clean, as expected from new stock. The printing is clear on two tubes, with some fading on the third tube as pictured. The original boxes are included and are in good vintage condition with minor shelf wear, but have kept the tubes safe for decades.

Historical & Technical Context

The GE 12AT7 is a classic American-made dual triode. It's a favorite as a phase inverter in many Fender-style guitar amplifiers and is also widely used in hi-fi preamps and audio gear for its reliability and balanced tone. This 1970s halo getter version is a workhorse tube known for its durability.

Superior Sound Supply Guarantee

Superior Sound Supply Quality Assurance:

Transparency and accuracy are the cornerstones of our business. We ensure every component is vetted so you can buy with complete confidence. Along with Superior Supplies for all of your sounds, We stand on Superior Service, If your not satisfied with our supply we will make it right.

Shipping:

Carefully packaged with consistent methods that are proven to protect your item and ensure safe delivery. We primarily use USPS, and FedEx for large or high-value items, and can arrange international shipping to anywhere in the world. Orders are processed and shipped within 1-3 business days of payment clearance. We do not ship on weekends or federal holidays. Orders placed after 2:00 PM CST Friday will ship the following Monday.

Returns:

• New Items: Returnable within 30 days of delivery.

• Used & Vintage Items: Returnable within 30 days of delivery.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.

Make sure to check the return policy on each individual listing as some items may be sold "As-Described" and not eligible for a return. We want you to be completely satisfied with your purchase.