Tube Substitutions for:
12L6GT
Beam Power Amplifier
| Type | Substitutes | Base Diagram |
|---|---|---|
| 12L6GT | 12EN6, 12W6GT, 1632* |  |
| Notes: | * - Parallel filaments | |
| Web References | 12L6GT (General Electric) @ Franks Electron Tubes 12L6GT @ RadioMuseum.org | |
| Type | Substitutes | Base Diagram |
|---|---|---|
| 12L6GT | 12EN6, 12W6GT, 1632* | |
| Notes: | * - Parallel filaments | |
| Web References | 12L6GT (General Electric) @ Franks Electron Tubes 12L6GT @ RadioMuseum.org | |
| Bulb | T-9 |
| Base | Octal 7-Pin |
| Basing | 7S |
| Mounting Position | Any |
| Heater Voltage | 12.6 | Volts |
| Heater Current | 600 | Ma |
| Heater Negative to Cathode Max Voltage-DC & Peak | 300 | Volts |
| Heater Positive to Cathode Max Voltage-DC | 100 | Volts |
| Heater Positive to Cathode Max Voltage-DC & Peak | 200 | Volts |
| Plate Voltage | 200 | Volts |
| Plate Dissipation | 10 | Watts |
| Grid No. 2 Voltage | 125 | Volts |
| Grid No. 2 Dissipation | 1.25 | Watts |
| Grid No. 1 Circuit Resistance-Cathode Bias | 0.5 | Megohm |
| Grid No. 1 Circuit Resistance-Fixed Bias | 0.1 | Megohm |
| Plate Voltage | 110 | 200 | Volts |
| Grid No. 2 Voltage | 110 | 125 | Volts |
| Grid No. 1 Voltage | -7.5 | Volts | |
| Cathode Bias Resistor1 | 0 | 180 | Ohms |
| Peak A F Grid No. 1 Voltage | 7.5 | 8.5 | Volts |
| Plate Current (Zero Signal) | 49 | 46 | Ma |
| Grid No. 2 Current (Zero Signal) | 4.0 | 2.2 | Ma |
| Plate Current (Maximum Signal) | 50 | 47 | Ma |
| Grid No. 2 Current (Maximum Signal) | 10.0 | 8.5 | Ma |
| Transconductance | 8000 | 8000 | �mhos |
| Plate Resistance (approx.) | 13000 | 28000 | Ohms |
| Load Resistance | 2000 | 4000 | Ohms |
| Power Output | 2.1 | 3.8 | Watts |
| Total Harmonic Distortion (approx.) | 10 | 10 | Percent |
| 1 | Fixed bias operation at maximum ratins is not recommended. |