Twin Diode - Remote-Cutoff Pentode
The 12F8 Vacuum Tube is a miniature type used as a
combined detector and audio amplifier. This tube is
designed to operate where heater and plate voltage are
supplied directly from a 12 volt battery. It requires a
miniature 9-contact socket.
Electrical Data:
Heater Voltage .............................. 10-16 V
Heater Current ............................... 0.15 A