Differences
This shows you the differences between two versions of the page.
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221 [2007/10/24 12:49] n5na |
221 [2007/11/28 15:29] n5na |
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| ====== 9 MHz 6 Pole 250 Hz Crystal Filter Model 221 ====== | ====== 9 MHz 6 Pole 250 Hz Crystal Filter Model 221 ====== | ||
| - | Special 250 Hz filter with the passband centered on 500 Hz rather than 750 Hz. Same as 219 except for the passband. | + | Special 250 Hz filter with the passband centered on 500 Hz rather than 750 Hz. Same as 219 except for the passband frequency. |
| ===== Specifications ===== | ===== Specifications ===== | ||
| | Center Frequency | 9.000500 | | | Center Frequency | 9.000500 | | ||
