| CIRCUIT CONSTRUCTION TYPE | ELECTRON TUBE |
| EXTERNAL AC OPERATING VOLTAGE IN VOLTS | 115.0 NOMINAL 2ND VOLTAGE |
| EXTERNAL AC OPERATING VOLTAGE IN VOLTS | 28.0 NOMINAL 1ST VOLTAGE |
| OPERATING AC FREQUENCY IN HERTZ | 400.0 NOMINAL 1ST VOLTAGE |
| OPERATING AC FREQUENCY IN HERTZ | 400.0 NOMINAL 2ND VOLTAGE |
| PHASE | SINGLE |