6H6 Vacuum Tube – Octal Twin Diode for AM Radio Detector & AVC Circuits

The 6H6 is a twin diode built for detector and automatic-volume-control (AVC) duty in AM radios, packaging both rectifier elements in one octal envelope.

• Tube type: Twin diode
• Base: Octal 8-pin
• Heater: 6.3V AC, 0.3A
• Typical use: Detector and AVC rectifier stage in AM table and console radios

Standard service-replacement tube for vintage AM radio detector circuits.