LS1240AD1 и другие
| Компонент | Описание | Производитель | |
| LS1240A-D08-T | ELECTRONIC TONE RINGER WITH BUILT-IN BRIDGE RECTIFIER |
Unisonic Technologies |
 |
| LS1240AD1 | ELECTRONIC TWO - TONE RINGER |
STMicroelectronics |
|
| LS1240AD1 | Electronic Two-Tone Ringer |
Wing Shing Computer Components |
|