KR AUDIO 5U4G

Full-Wave Thermionic High-Vacuum Rectifier Tube

The KR Audio 5U4G is a full-wave thermionic high-vacuum rectifier tube designed for power-supply applications in compatible tube audio equipment. It converts AC voltage into DC for the amplifier’s power-supply circuit and supports a specified DC output current of up to 225 mA under the manufacturer’s stated operating conditions.

Technical Specifications

• Tube Type: Full-Wave Thermionic High-Vacuum Rectifier
• AC Filament Voltage: 5.0 V
• AC Filament Current: 3.0 A
• Maximum AC Plate Voltage per Plate (RMS), Choke-Input Filter: 550 V
• Maximum AC Plate Voltage per Plate (RMS), Capacitor-Input Filter: 450 V
• DC Output Current: 225 mA
• Minimum Input-Choke Inductance: 3 H
• Minimum Effective Plate-Supply Impedance per Plate, Capacitor-Input Filter: 75 Ω
• Maximum Input Capacitor: 10 µF