| AOR | ABF-125 VHF Air Band RF Filter |
| TDF-370 DSP Multi-Media Terminal | |
| Apex | HPF2050 High Pass Filter |
| Daiwa | AF-606K Audio Filter |
| Datong | FL-2/FL-3 Audio Filters |
| Drake | TV- 100-LP Low Pass Filter |
| TV-1000-LP Low Pass Filter | |
| Gap | IN Hear It In-line Module |
| JPS | NF-60 Audio Filter |
| NIR-10/NIR-10 SWL Audio Filters | |
| NIR-12 Audio Filter | |
| NRF-7 Audio Filter | |
| NTR-1 Audio Filter | |
| Kiwa | BCB Rejection BCB RF Filter |
| 500 kHz Low Pass Low Pass Filter | |
| MAP Sync Detection & Filter | |
| MFJ | MFJ-722 SSB/CW Audio Notch Filter |
| MFJ-752C Audio Filter | |
| NCS | NCS-3230 Audio Console |
| NCS-3240 Audio/Mic Console | |
| SGC | ADSP2 DSP Module |
| Stoner | FC-11 Audio Filter |
| Timewave | DSP-9/DSP-9+ Audio Filter |
| DSP-59 Audio Filter | |
| DSP-59+ Audio Filter | |
| DSP-59Y Audio Filter | |
| DSP-599zx DSP Audio Filter | |
| Please also see |  Current Audio & RF Filters |
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