6SL7WGT-JAN Sylvania Square Getter Made in USA Amplitrex Tested Qty 1 MQ (4pcs)

The “6SL7WGT-JAN SYLVANIA Square Getter” is a specific type of dual-triode vacuum tube, known for its military-grade construction (JAN spec) and high-quality audio performance, featuring a distinctive “square getter” at the top, black plates, and a thick brown base. These tubes, manufactured by Sylvania for the US military in the 1950s, are highly sought after by audiophiles for their clear, detailed, and warm sound with tight bass and smooth treble.

Key features
• Manufacturer and spec: Sylvania, USA, made for the US military (JAN – Joint Army-Navy specification).
• Date: Typically from the 1950s.
• Getter: A distinctive “square getter” at the top of the tube.
• Plates: Black plates.
• Base: Brown Thick base.
• Construction: Rugged, with features like a low-loss micanol heat-resistant base and small inverted welded plates, making it low-microphonic.
Performance characteristics
• Audio Quality: Highly regarded for its sound, which is described as clear, vivid, detailed, and smooth.
• Frequency Response: Features tight and well-extended bass, detailed midrange, and smooth treble without harshness.
• Soundstage: Creates a wide soundstage where instruments can seem very close to the listener.
• Microphonics: Very low microphonics due to its construction.
Why it’s desirable
• Quality: It is considered a high-quality, special-purpose tube built to military standards.
• Sound: Many audiophiles consider it one of the best-sounding 6SL7 types for audio applications.
• Collectibility: Its specific features and military origin make it a classic and sought-after component.

• Condition: New in White Box