| Manufacturer | Part Number | Description |
|---|---|---|
| ETC Unknown Manufacturer | 6L6GC | Pentode |
Tube Amp Doctor |
6L6GC-STR | High Performance Audio Beam Power Pentode |
TUNG-SOL |
6L6G | Beam Pentode |
| SYLVANIA SYLVANIA | 6L6G | Beam Tetrode |
| Shuguang Shuguang | 6L6GCR | Beam Tetrode |
STC |
6L6G | Beam Tetrode |
Svetlana |
SV6L6GC | High Performance Audio Beam Power Tetrode |
| Shuguang Shuguang | 6L6G | Beam Tetrode |