Table of Contents

Filters

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Crystal Filter Comparison

Model: 216 217 218 219 220 221 282 285 288 ?
Center Frequency 9.002210 9.000750 9.001500 9.000750 9.001500 9.000500 6.299250 6.299250 6.300000 6.300000
6 dB BW, Hz 500 500 1800 250 2400 250 250 500 1800 2400
Shape Factor, 6/60 dB 2.75:1 2:1 1.8:1 2.4:1 1.7:1 2.4:1 3.4:1 2.9:1 1.75:1
Insertion Loss, dB 8.0 7.5 2.0 10.0 2.2 10.0 11.5 5.5 2.5
Ultimate Rejection, dB 90+ 90+ 90+ 85+ 90+ 85+ 90+ 90+ 100+
Z in & out, Ohms 200 200 200 200 200 200 200 200 200
Number of Poles 6 8 8 6 8 6 6 6 8 8
Stock Code 48161 48036 48037 48055 48058 48243 48054 48053 48075 48074
Current Model No.: N/A 2017 2018 2019 N/A N/A 2082 2085 2088 N/A

Model Listing

Model Image Description
114 Audio Filter for Argosy II
208 208.jpg CW Filter for the 509, 2 position, $29 New
208A CW Filter with Notch for the 515, 3 position
216 500 Hz 6 Pole FSK Filter, 9 MHz
217 217.jpg 500 Hz 8 Pole Ladder Filter, 9 MHz
218 218.jpg 1.8 KHz 8 Pole Ladder Filter, 9 MHz
219 219.jpg 250 Hz 6 Pole Ladder Filter, 9 MHz
220 220.jpg 2.4 KHz 8 Pole Ladder Filter, 9 MHz
221 250 Hz 6 Pole Ladder Filter, 9 MHz, Passband centered at 500 Hz
224 Audio CW Filter for Argosy
235 CW Filter for Model 315 Receiver, $14.95 New
245 245.jpg CW Audio Filter Board
282 282.jpg 250 Hz 6 Pole Ladder Filter, 6.3 MHz
285 285.jpg 500 Hz 6 Pole Ladder Filter, 6.3 MHz
288 288.jpg 1.8 KHz 8 Pole Ladder Filter, 6.3 MHz
2000 1.8 kHz roofing filter, 9 MHz I-F, for Orion II Model 566 Only
2001 600 Hz roofing filter, 9 MHz I-F, for Orion II Model 566 Only
2002 300 Hz roofing filter, 9 MHz I-F, for Orion II Model 566 Only
2017 217.jpg 500 Hz CW filter, 9 MHz I-F, direct drop-in replacement for Model 217
2018 218.jpg 1.8 KHz SSB filter, 9 MHz I-F, direct drop-in replacement for Model 218
2019 219.jpg 250 Hz CW filter, 9 MHz I-F, direct drop-in replacement for Model 219
2031 500 Hz Collins Mechanical filter, 455 kHz I-F, for Omni VII Model 588
2032 300 Hz Collins Mechanical filter, 455 kHz I-F, for Omni VII Model 588
2082 282.jpg 250 Hz CW filter, 6.3 MHz I-F, direct drop-in replacement for Model 282
2085 285.jpg 500 Hz CW filter, 6.3 MHz I-F, direct drop-in replacement for Model 285
2088 288.jpg 1.8 KHz SSB filter, 6.3 MHz I-F, direct drop-in replacement for Model 288
5060 5060.jpg High Pass Filter
5061 5061.jpg Low Pass Filter, 2 KW
FR4 fr-4.jpg Audio Filter, 400 Hz