====== 9 MHz 8 Pole 1.8 kHz Crystal Filter Model 218 ======
{{:218.jpg?150|}}

===== Specifications =====
| Center Frequency        |  9.001500 |
| 6 dB BW, Hz             |  1800 |
| Shape Factor, 6/60 dB   |  1.8:1 |
| Insertion Loss, dB      |  2.0 |
| Ultimate Rejection, dB  |  90+ |
| Z in & out, Ohms        |  200 |
| Number of Poles         |  8 |

{{9mhz_filter_specs.jpg|}}