| Manufacturer | Part Number | Description |
|---|---|---|
GEC |
KT66 | Beam Tetrode |
| Shuguang Shuguang | KT66 | Beam Tetrode |
TUNG-SOL |
KT66 | Beam Power Pentode |
| Marconi Marconi | KT66 | Beam Pentode |
| ETC Unknown Manufacturer | KT66 | Pentode |
| Manufacturer | Part Number | Description |
|---|---|---|
|
GEC |
KT66 | Beam Tetrode |
| Shuguang Shuguang | KT66 | Beam Tetrode |
|
TUNG-SOL |
KT66 | Beam Power Pentode |
| Marconi Marconi | KT66 | Beam Pentode |
| ETC Unknown Manufacturer | KT66 | Pentode |