Jinyinlai 300B – DR Vacuum Tube — A Symphony of Retro Aesthetics and Sound Quality

The Jinyinlai 300B – DR vacuum tube embodies the exquisite craftsmanship and boundless passion of 40 years of experienced designers, perfectly blending retro nostalgia with modern technology. Based on the classic Western Electric WE300B, this tube features a unique eggplant-shaped glass envelope with a retro design, exuding elegant grandeur and rich nostalgic charm, making it a striking highlight in any audio system.

In terms of technological innovation, the Jinyinlai 300B – DR is equipped with the company’s exclusively developed patented nano-carbon anode material, offering heat dissipation efficiency and current stability that far surpass traditional designs. The distinctive top-suspension design eliminates traditional mica shielding, allowing for faster and more efficient internal anode heat dissipation, ensuring consistent stability even during prolonged operation.

The sound quality is the soul of the Jinyinlai 300B – DR. It delivers a warm, full tone with deep, powerful lows, soft and refined mids, and clear, gentle highs. Whether it’s the mellow, winding notes of jazz or the majestic grandeur of a symphony, this tube captures emotions with stunning dynamic range and rich layering, rendering music vividly. It doesn’t just reproduce sound—it breathes life into music, transforming listening into an immersive experience.

Customer feedback for the Jinyinlai 300B – DR has been overwhelmingly positive. Audiophiles praise its “deep, plunging lows and silky smooth highs,” noting that “the fusion of retro styling and modern sound quality is perfection.” Users marvel, “After switching to the 300B – DR, the soundstage opened up dramatically, with detail reproduction that’s simply astonishing!” Seasoned enthusiasts add, “This is the most cost-effective 300B variant I’ve used—its heat dissipation and stability are impeccable.”

The Jinyinlai 300B – DR vacuum tube carries craftsmanship in its retro form and achieves sonic excellence through innovation. It’s more than just an electronic component—it’s a timeless auditory feast. Choose the 300B – DR and let the classics resonate with modernity in your audio system!
 

Specifications

Maximum Ratings

• Anode Voltage………………480V
• Anode Dissipation Power…………45W
• Cathode Current
  • Self-Bias…………………100 mA
  • Fixed Bias………………70 mA
• Interelectrode Capacitance
  • Input Capacitance……………………9PF
  • Output Capacitance……………………4.3PF
  • Plate-to-Grid Capacitance……………………15PF

Static Parameters

• Ua…………………………300V
• -Ug……………………… 60 V
• Ia…………………………60mA
• Gm…………………………5.5mA/V
• Ri…………………………0.7 KΩ
• μ…………………………3.85
• Pout………………………6.6W

Recommended Parameters

Limit Parameters

450–100–96.5————60

Typical Operating Parameters – Audio Amplifier – Class A1 Amplification