| Manufacturer | Part Number | Description |
|---|---|---|
| INFICON | ET213 | Quality Quartz Crystals and Oscillators |
| INFICON | ET214 | Quality Quartz Crystals and Oscillators |
| INFICON | ET212 | Quality Quartz Crystals and Oscillators |
| INFICON | ET211 | Quality Quartz Crystals and Oscillators |
