 |
| |||
| operate a tube with the grid positive; run a tube with the grid positive | |||
| работать при положительном напряжении сетки: 5 phrases in 2 subjects |
| Makarov | 2 |
| Technology | 3 |
|
| |||
| operate a tube with the grid positive; run a tube with the grid positive | |||
| работать при положительном напряжении сетки: 5 phrases in 2 subjects |
| Makarov | 2 |
| Technology | 3 |