5Y3GT

The 5Y3GT is a rectifier tube commonly used in the power supply circuits of vacuum tube audio amplifiers. It is designed to convert alternating current (AC) to direct current (DC) for powering other components in the amplifier. Here are some key specifications for the 5Y3 rectifier tube:

• Type: Full-Wave Rectifier
• Maximum Plate Voltage: Typically around 400 V
• Maximum Plate Current: Typically around 125-140 mA
• Filament Voltage: 5 V
• Filament Current: 2 A
• Rectifier Configuration: Single Anode

The 5Y3GT is known for its relatively lower voltage and current handling capabilities compared to some other rectifier tubes like the 5U4 or 5AR4. It provides a softer and slower voltage ramp-up, contributing to a smoother power supply in audio amplifiers.

As with any tube replacement, it’s crucial to refer to the amplifier’s specifications and guidelines when selecting or replacing a rectifier tube. Different rectifier tubes have varying electrical characteristics, and using a tube with significantly different specifications may affect the amplifier’s performance and reliability.