Raytheon 5U4G Rectifier Tube 1951 USA - Tested

Superior Sound Supply selling some seriously special stock - this Raytheon 5U4G vacuum tube represents top-tier quality from a 1951 U.S.A. build. This is a "holy grail" D-getter, black Plates rectifier tube, highly sought after by audiophiles and amp builders.  

Technical Specifications

• Item Type: Vacuum Tube  

• Brand/Manufacturer: Raytheon

• Model/Type Number: 5U4G

• Condition: NOS (New Old Stock)  

• Country of Origin: U.S.A.

• Manufacturing Era: 1951  

• Date Codes: 280 126

• Getter Type: D-Getter  

• Plates Type: Black Plates  

• Test Results: Professionally tested on our calibrated Precision Model 612 emissions tester.  

• Emissions: Tests over 90%

• Shorts/Leaks: Passed (No shorts, opens, or leaks detected)

Condition Details

This tube is in NOS (New Old Stock), excellent condition. The glass is clear and the internal structure is perfect. The base is clean with legible printing, including the "RAYTHEON MADE IN U.S.A." and date codes. The original Raytheon "Radio Tube" box is included, though it shows significant wear, tear, and missing flaps as seen in the photos.  

Historical/Technical Context

The 1950s Raytheon 5U4G with black Plates and a D-getter is widely considered one of the finest 5U4 variants ever produced. It's known for its robust build and smooth, reliable rectification, making it a premium upgrade for vintage guitar amplifiers and high-fidelity audio systems. This specific build is legendary for its contribution to "sag" and tonal warmth in tube circuits.  

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.