Twin Diode - High-Mu Triode
The 7B6 Vacuum tube is a glass lock-in type used as a
combined detector, amplifier, and AVC tube. It requires an
8 pin lock-in socket.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Preferred Substitutes ................... 7C6