| Компонент | Описание | Производитель | |
| PX-4220-DAA-KA | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DAA-KB | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DAA-KF | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DAA-KK | Hybrid TTL Clock Oscillator |
Vectron International, Inc |