| Компонент | Описание | Производитель | |
| LM1131C | DUAL DOLBY B-TYPE NOISE REDUCTION PROCESSOR |
National Semiconductor |
|
| LM1131CM | DUAL DOLBY B-TYPE NOISE REDUCTION PROCESSOR |
National Semiconductor |
|
| LM1131CN | DUAL DOLBY B-TYPE NOISE REDUCTION PROCESSOR |
National Semiconductor |