Power Grid Devices Econco
Industrial - Switch Tubes
| Product Description | Emitter | Cooling | Eb,kV | Ib,A | Po (kW) | Model Number |
| 4CW10,000A rebuilt water cooled Tetrode | Thoriated | Water | 7.5 | 2.8 | 16.0 | 4CW10,000A |
| 4CW100,000D rebuilt water cooled Tetrode | Thoriated | Water | 19.0 | 10.0 | 165.0 | 4CW100,000D |
| 4CW250,000B rebuilt water cooled Tetrode | Thoriated | Water | 19.0 | 32.5 | 460.0 | 4CW250,000B |
| 8461 rebuilt water cooled Triode | Thoriated | Water | 80.0 | 600.0 | 40,000.0 | 8461 |
| 8661 rebuilt water cooled Tetrode | Thoriated | Water | 7.5 | 2.8 | 16.0 | 8661 |