Filters
filters — pre-owned
Browse 619 filters — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
5B4AGN 6-Band TX Band Pass Filter System W3NQN SO2R + 40/20/15/10M Filters
Complete W3NQN Contest / SO2R Filtering System. 5B4AGN 6-Band Transmitting Band Pass Filter System. Integrated antenna relay driver. Antenna Relay Driver. Four individual band-pass filter modules. Rotary manual band selection.
BHI A-COMPACT IN-LINE Compact in-line DSP Noise Cancelling Module
This compact unit connectsin-line between your radio/audio source and headphones or a powered speaker, making noisy signals easier to understand. It uses bhi’s DSP noise-cancelling technology to separate speech from interference and background noise, with adjustable filtering so you can tune the audio to suit current listening conditions.
Timewave DSP-599zx DSP Audio Noise Filter Ham Radio Interface
The Vintage Timewave DSP-599zx DSP Audio Noise Filter is a high-quality filter designed to enhance the audio quality of ham radios and other radio communication devices. Made by Timewave in the United States, this filter is compatible with a wide range of brands and is specifically tailored to reduce noise and interference in the signal, providing a cleaner and more clear audio experience for users. Perfect for those looking to improve the performance of their radio communication equipment, the Timewave DSP-599zx filter is a reliable and efficient solution for enhancing audio quality.
You save $44.00
ICOM FL-101 CW Narrow Filter 9.0106MHz (250Hz/-6dB) Clean Tested
D : Fair - Shows clear wear and tear due to age but still functional. B : Excellent - Very clean, only minor signs of use. Fully functional. A : Mint - Almost unused, as new. E : Imperfect - For parts, untested, or needs repair.
Swan Electronics Low Pass Filter Model LP-3400 Ham Radio
Swan Electronics Low Pass Filter Model LP-3400 Ham Radio
INRAD #720 2 kHz SSB filter Yaesu FT-817, FT-857. FT-897
INRAD #720 2 kHz SSB filter for the Yaesu FT-817/818, FT-857, FT-897 series of transceivers -.
Kenwood KLF-2 Line Noise Filter RF Suppressor Two Way Radio CB Ham
Tested and working, take the noise out of your radio and get back to listening clearly. Happy buying
Vectronics HPF-1 High pass Filter
Bencher Model YA-1 Low Pass Filter
Very good clean used condition.
MSC Smart Filter SCAF Audio Filter - Works
The MSC Smart Filter SCAF Audio Filter is a specialized filter designed for radio communication systems. Made by MSC, this filter is known for its effectiveness in improving audio quality and reducing interference in communication devices. Its unique design and high-quality construction make it a reliable choice for enhancing the performance of radio communication equipment.
Collins F455N-40 526-9160-009 Mechanical Filter for R-390A Receiver (nice)
COMET CF-416B Duplexer 1.3-170MHz/350-540MHz GUARANTEED
Comet 1.3-170MHz/350-540MHz Duplexer W/Leads, SO-239 - PL-259/N-Male. This is in good used condition, with some light wear.
Collins F455N-80 526-9161-009 Mechanical Filter for R-390A Receiver (nice)
ICOM FL-52A 500Hz CW Filter for IC-R75 IC-718 IC-746 Genuine Tested
Grade C : Good - A few scratches but looks good and works properly. The filter was taken out from a working IC-750. C : Good - A few scratches but looks good and works properly. B : Excellent - Beautiful item for used.
Drake R7 / R7A IF FILTER BOARD with 1800 KHZ CW / SSB + 4000 KHZ AM FILTERS
Drake R7 / R7A IF FILTER BOARD. 1800 KHZ CW / SSB + 4000 KHZ AM FILTERS.
ICOM FL-223 SSB Narrow Filter 9.0115MHz (1.9kHz/-6dB) Good Cond.
Grade C : Good - Noticeable scratches or tear, but works properly. C : Good - Noticeable scratches or tear, but works properly. E : Imperfect - For parts, untested, or needs repair. D : Fair - Shows clear wear and tear due to age but still functional.
Collins F455N-160 526-9162-009 Mechanical Filter for R-390A Receiver (nice)
Collins F455N-20 526-9163-009 Mechanical Filter for R-390A Receiver (nice)
Collins F250Z-4 SSB Mechanical Filter 250KHz P/N 526-9130-031
All filters have been security marked.
You save $14.92
Icom FL-102 Ham Radio Plug-In AM Filter (several available)
R.L. Drake Co. TV-1000-LP Low Pass Filter 1000 Watts ham radio / cb radio
R.L. Drake Co. TV-1000-LP Low Pass Filter 1000 Watts ham radio / cb radio
ICOM HARD TO FIND UT-101 DSP UNIT
ICOM HARD TO FIND UT-101 DTMF UNIT IN ORIGINAL BOX WITH MANUAL.make a fair offer.THANK YOU
Heathkit 404-283 SSB Crystal Filter SB-303 301 101 102 401
This is a Heathkit 404-283 (SBA-310-2) SSB Crystal Filter. It is in excellent condition and was removed from a Heathkit SB-102. Includes hardware. This should work in the Heathkit SB-301, 303, 310, 401, 101, 102, etc.
MFJ MODEL MFJ-784 TUNABLE NOISE REDUCTION AUDIO DSP FILTER-Works
The MFJ Model MFJ-784 Tunable Noise Reduction Audio DSP Filter is designed to improve audio quality by reducing noise and interference. This filter, specifically the MFJ-784B model, is designed by MFJ and is compatible with a wide range of audio sources. With its tunable DSP technology, users can easily adjust the filter to achieve optimal noise reduction for their specific audio setup. Ideal for radio communication and audio enthusiasts, this filter helps enhance the overall listening experience by eliminating unwanted noise and interference.
Collins Radio Mechanical filter F455-A-08
Not sure if this Collins Mechanical filter is New or Used. It was a 'spare' (as noted on the old stock container it comes in). It is being sold AS IS. If it does not function we will accept a return.
Vintage Timewave DSP-599zx DSP Audio Noise Filter Ham Radio Interface
You save $25.30
BHI A-Dual In-Line Dual In-Line Mono/Stereo DSP Noise Cancelling Mod
BHI Dual In-Line DSP Noise Eliminating Modules provide two-channel or stereo noise cancellation, and are suitable for use on all receivers and transceivers, including SDR. They are especially applicable with stereo or two channel output options.
Timewave DSP-599zx DSP Audio Noise Filter C MY OTHER HAM RADIO Icom Kenwood
Device has been well cared for and is in good physical and operational condition.
Cellular Specialties CS06-020-399 RF Coupler Duplexer N-Type Connectors
Cellular Specialties CS06-020-399 RF Coupler Duplexer N-Type Connectors
ROCKWELL International COLLINS - MECHANICAL FILTER - p/n 526941000 - F500Y70 AM
I am not an operator and don’t have the knowledge to fully test myself. Sold as is. Everything you see in the pictures is what is included in this lot. We of course will get them out as fast as we can.
Collins 51S-1 800Hz CW Crystal Filter 293-0928-00 - Ham Radio Equipment
Collins 800 Hz CW crystal filter — the optionalFL4 narrow-CW filter for the legendary Collins51S-1 communications receiver. Collins P/N: 526 7315 00. Type: X500K8Q800 (Collins type code: 500 kHz center IF, 8-pole, Q-factor / 800 Hz bandwidth).
RARE Collins 689-BM124 Filter / Symbol T-602
Sold as is. Everything you see in the pictures is what is included in this lot. We of course will get them out as fast as we can. We will help resolve whatever issue you are having. We try very hard to provide good communication and always strive for everyone to have a positive experiences!
Icom FL-53A Plug-In Ham Radio Narrow CW Filter (very nice)
This Icom CW filter is in great shape and is ready to be installed in your rig!
TEN TEC 282 250HZ CW FILTER FOR SEVERAL TRANSCIEVERS
An excellent accessory for several Ten Tec transceivers. Check your manual to be certain this filter is correct for your radio. Filter is fully tested and works great.
Microwave Filter Co. 2424-1 - Low Pass Filter - 50 W 200-400 MHz - 50 Ohms
Impedance 50 Ohms. Frequency Range = 200-400 MHz - Power capability = 50 Watts. How I describe myself >>> Authentic - Honorable - Humble - Insightful - Principled - Trustworthy. Good physical condition.
Collins 241-0460-00 Mechanical Filter 15.0075MHz X450-3
You save $51.97
YF-122CN/XF-115CN Collins Mechanical CW Filter for FT-817 455kHz Tested
This filter is sold under both model numbers YF-122CN and XF-115CN. E : Imperfect - For parts, untested, or needs repair. D : Fair - Shows clear wear and tear due to age but still functional.
KENWOOD YG-455C-1 500Hz CW FILTER
An excellent accessory for many of Kenwood's finest radios. Check your manual to be certain this filter is correct for your radio. SIGNATURE CONFIRMATION.
You save $50.00
Collins 526-9689-010 Mechanical Filter Ham Radio Tested Working
✔ Amateur radio operators. 🔧 About This Filter. ✅ Tested & Working.
NOS Collins F455H-31 526-9093-00 Receiver Mechanical Filter
Estate sale find, appears to be unused but sold as is due to nature of old electronics not working after a certain period of time.