Power Grid Devices Eimac
Science - Pentodes
| Product Description | Emitter | Cooling | Eb,kV | Ib,A | Po (kW) | Model Number |
| 290/Y-573 air cooled Pentode | Oxide | Air | 5.0 | 0.6 | 2.5 | 290/Y-573 |
| 5CX1500A air cooled Pentode | Thoriated | Air | 4.5 | 0.9 | 3.2 | 5CX1500A |
| 8295A air cooled Pentode | Oxide | Air | 3.0 | 0.8 | 1.8 | 8295A |