300B
| Maximum Plate Voltage | 550 V |
| Maximum Plate Current | 120 mA |
| Plate Dissipation | 50 Watts |
| Va | 450 V |
| Ia | 100 mA |
| Vg | -90 V |
| Transconductance | 6.2 mA/V |
| Amplification Factor | 3.9 |
| Filament Voltage | 5 V (DC/AC) |
| Filament Current | 1.2 A |
KR AUDIO
300B 真空管
Brand：
HK$4,800.00
Brand
KR AUDIO - CZECH
KR Audio is a European manufacturer specializing in the development of high-end vacuum tubes and audio equipment. Located in the heart of Europe, the Czech Republic, KR Audio specializes in the production of direct-heated audio triodes and premium audio equipment. All KR products are handcrafted, starting with the selection of glass, vacuuming and metal processing, glassblowing and design, chemical and electrical design, and the absolute refusal to use automated production lines. This is the reason for KR's uniquely high quality.
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