6J5G L63 GEC Black Coated Glass Made in England Amplitrex Tested Qty 2 Pcs#545014-25

  Up for sale 2 Pcs
6J5G L63 GEC

Made in England

Black Coated Glass

Black Base

New in Original GVT Box

Tested Advance Digital Tube Tester Amplitrex AT1000

Sr.No.545014  Ip mAdc=10.4 uMhos=2770

Sr.No.545025  Ip mAdc=7.0 uMhos=2700

🎶 Application in Audio
The 6J5G is highly popular among audiophiles and DIY enthusiasts for several reasons:
1. High Linearity: It is known for its very linear operation, meaning it introduces less distortion, resulting in clear and accurate audio reproduction. This is often described as “what goes in is what comes out.”
2. Excellent Driver/Preamplifier: Due to its medium-mu and relatively low plate resistance, it excels as an audio preamplifier or a driver tube for larger output tubes (like 300B, 2A3, etc.) in power amplifiers.
3. “Golden Age” Sound: Being an older, ST-shaped glass tube from the 1930s (G suffix stands for the “G” or “globe” shape, though often an ST-shape), it embodies a characteristic warm and detailed tonal character sought after in vintage audio equipment.
4. Low Noise: Many versions exhibit low noise and microphonics, making them suitable for sensitive audio circuits.

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