Type | Substitutes | Base Diagram |
---|---|---|
112A | 12A | |
Web References | 112A (RCA) @ Franks Electron Tubes 112A @ RadioMuseum.org |
Bulb | S-14 |
Base | Medium 4 Pin |
Basing | 4D |
Filament Voltage | 5.0 | Volts |
Filament Current | 0.25 | Amps |
Grid-Plate Capacitance | 8.5 | ��f |
Grid-Filament Capacitance | 4.0 | ��f |
Plate-Filament Capacitance | 2.0 | ��f |
Plate Voltage | 90 | 135 | 180 | Volts |
Grid Voltage | -4.5 | -9.0 | -13.5 | Volts |
Plate Current | 5.0 | 6.2 | 7.7 | Ma |
Plate Resistance | 5400 | 5100 | 4700 | Ohms |
Amplification Factor | 8.5 | 8.5 | 8.5 | x |
Transconductance | 1575 | 1650 | 1800 | �mhos |
Load Resistance | 5000 | 9000 | 10650 | Ohms |
Undistorted Power Output | 0.035 | 0.13 | 0.285 | Watts |