Similar medium-mu twin triode on Octal base but different mu (20 vs 10) and different operating point
Electrical Specifications
Absolute Maximum
Anode Dissipation (max)Anode Dissipation (max, per section)3.85W
Typical Operating
Anode Voltage (typical)Anode Voltage (typical)200V
Grid 1 Bias VoltageGrid 1 Bias Voltage-11V
Anode CurrentAnode Current18mA
Anode ResistanceAnode Resistance3,450Ω
TransconductanceTransconductance
Heater
Heater VoltageHeater Voltage12.6V
Heater CurrentHeater Current0.3A
Notes
The 2C50 is electrically related to the 2C51/396A/5670 family but uses a different Octal pin arrangement (base 8BD). The 396A is the Western Electric designation.
Sams lists 2C51 and 1219 as substitutes for 396A — verify pin compatibility before substituting, as these may use different base configurations.