Усилитель на LA4557 BTL
| T I P | Vcc.min V | Vcc.nom V | Vcc.max V | P-out W | RL. ohm | Case | Orginal | Zamena |
| LA4557 BTL | 6 | 9 | 12 | 4,6 | 8 | 12-DIP+b |
| T I P | Vcc.min V | Vcc.nom V | Vcc.max V | P-out W | RL. ohm | Case | Orginal | Zamena |
| LA4557 BTL | 6 | 9 | 12 | 4,6 | 8 | 12-DIP+b |