25Z6GT Vacuum Tube – Series-String Duplex-Diode Rectifier for AC/DC Radios

The 25Z6GT is a duplex-diode rectifier built for AC/DC radios using a 25-volt heater string rather than a power transformer.

• Tube type: Duplex-diode rectifier
• Base: Octal 8-pin
• Heater: 25V, series-string (no filament transformer)
• Typical use: Rectifier stage in transformerless AC/DC table radios built around a 25-volt filament string

Sized for chassis using 25L6-family output tubes rather than the 35V/50V string.