Entry-level price, high-value tube with thousand-yuan sound quality
JYL 300B-98 Tube: A smart choice for audiophiles
This is JYL’s first entry-level product. It offers exceptional value for money, suitable for first-time tube amplifier users.
This tube lets you experience authentic tube sound with a smaller budget.
Core technology: Nano-carbon metal anode material
The JYL 300B-98 tube uses the company’s patented material, the Nano-carbon metal anode. This innovative technology gives the tube exceptional performance. The nano-carbon metal anode offers excellent conductivity and stability, effectively reducing signal loss and distortion during transmission, allowing every note to be reproduced accurately, delivering the purest and most authentic sound.
Three-layer mica design: Guarantee of stability and quality
Its unique three-layer mica design is another highlight. The three-layer mica structure works together, not only making the overall structure of the tube more robust to resist external vibration and interference, but also optimizing the environment for internal electron movement, ensuring stable operation even under complex working conditions, providing a solid guarantee for high-quality audio output.
Special cathode coating: Both dynamics and details
It uses a special cathode coating formula and advanced spraying technology. This greatly improves electron emission capability, providing a large number of electrons quickly and stably, making the audio signal response faster and the dynamic range wider. Whether it’s a passionate symphony or a delicate vocal, it can handle it with ease, bringing you an immersive music experience.
Sound performance: Comparable to thousand-yuan 300B tubes
The JYL 300B-98 has strong compatibility, adapting to mainstream 300B amplifier circuits. Easy to install with good consistency, it is a high-value choice for entry-level upgrades and complete amplifier builds.
To learn more about the full range of JYL tube products, please visit Jinyinlai Tube Product Catalog to select suitable products for your HIFI system.
300B Tube Technical Specifications
Absolute Maximum Ratings
- Anode voltage: 480V
- Anode dissipation: 40W
- Cathode current (self bias): 100 mA
- Cathode current (fixed bias): 70 mA
- Inter-electrode capacitance:
- Input capacitance: 9PF
- Output capacitance: 4.3PF
- Feedthrough capacitance: 15PF
Static Characteristics
- Ua: 300V
- -Ug: 60V
- Ia: 60mA
- Gm: 5.5mA/V
- Ri: 0.7 KΩ
- μ: 3.85
- Pout: 6.6W
Recommended Operating Conditions
| Ug (V) | Ua (~V) | Uf (AC) (V) | Uf (DC) (V) | Ia (mA) |
|---|---|---|---|---|
| 2003329.5-77 | ||||
| 200 | 45 | 41.5 | – | 20 |
| 250 | 46 | 42.6 | – | 74 |
| 250 | 57 | 53.6 | – | 22 |
| 300 | 60 | 56.5 | – | 68 |
| 300 | 70 | 66.5 | – | 23 |
| 400 | 86 | 82.5 | – | 68 |
| 400 | 98 | 94.5 | – | 19 |
| 450 | 100 | 96.5 | – | 60 |
Typical Operating Conditions (Audio Amplifier Class A1)
| Ua (V) | -Ug (V) | Ia (mA) | RL (Ω) | Pout (W) | 2nd (db) |
|---|---|---|---|---|---|
| 200 | 42 | 30 | 2000 | 3 | 20 |
| 200 | 39 | 40 | 2500 | 2.6 | 26 |
| 250 | 55 | 30 | 2000 | 4.9 | 18 |
| 250 | 52 | 40 | 3000 | 4.0 | 26 |
| 250 | 50 | 50 | 2500 | 4.4 | 26 |
| 250 | 48 | 60 | 2000 | 4.7 | 30 |
| 300 | 65 | 40 | 2500 | 6.7 | 20 |
| 300 | 63 | 50 | 2000 | 7.2 | 21 |
| 350 | 74 | 60 | 3000 | 8.3 | 26 |
| 400 | 89 | 50 | 4000 | 9.4 | 25 |
| 450 | 100 | 60 | 4000 | 12.5 | 26 |