Ray Tubes RESERVE 300B
DESCRIPTION
The Ray Tubes RESERVE 300B is the pinnacle of classic audiophile vacuum tubes, meticulously hand-selected and crafted for deep musical expression. As part of the RESERVE Collection, this tube combines gold-plated pins and monocrystalline carbon Magic Coating with small-batch production and rigorous selection — with fewer than 5 % of tubes meeting RESERVE standards. The RESERVE 300B’s legendary design offers warm, elastic bass, delicate and layered midrange, clear and smooth highs, and a wide, well-defined soundstage with excellent spatial clarity.
Technical Specifications:
- Tube Type: 300B
- Tube Socket: 4-pin
- Power Output (Pout): 6.6 W
- Filament Voltage: 5 V
- Filament Current: 1.2 A
- Max Anode Voltage: 480 V
- Anode Dissipation Power: 40 W
- Self Bias Cathode Current: 100 mA
- Fixed Bias Cathode Current: 70 mA
- Input Capacitance: 9 pF
- Output Capacitance: 4.3 pF
- Transfer Capacitance: 15 pF
- Transconductance: 5.5 mA/V
- Internal Resistance: 0.7 kΩ
- Amplification Factor: 3.85
Backed by the Ray Tubes One Year Warranty