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Displaying ads 121 to 130 of 230 ads matching your search for: filter
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KA9FOX Wishlist on Amazon.com

 RADIOHF - FS Icom 718 with CW filter
In very good condition and Icom ic718 with installed 500Hz CW filter, no other options. Radio works fine, no issues. Comes with microphone, and power cord, I don't have the manual for it but it can easily be found free online. I can be emailed, texted or called. Asking $475. Free shipping. I can provide pictures if interested.

Listing #1731704 - Submitted on 06/04/25 by Callsign N2WJW - IP: c-73-33-153-238.hsd1.nj.comcast.net
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 RADIOHF - FOR SALE: Elecraft K3 with 2nd receiver  
K3 with 2nd receiver for sale
Recently aligned by W3DVX
Current 5.67 firmware
Factory gold pins
Main RX filters: 6.0,2.7, 2.1 and 500
Sub RX filters: 2.7 and 500
KPA3 100W PA
KAT3A Tuner
KYSN3A sync boards
KXV3B RF I/O module
K3 Owners manual
Upgrading the K3 by Fred Cady
Sn 4321
Certified check, money order or PayPal with 3% added.
Contact me thru QTH reply form only.
Shipped insured for $2100
Greg K8GL
Interlochen MI


Listing #1728585 - Submitted on 05/07/25 by Callsign K8GL, Modified on 06/02/25 - IP: 184.52.113.145
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 MISC - AKG C-214  
Excellent condition.
General Specifications
Polar Pattern
Cardioid
Audio frequency bandwidth
20 - 20000 Hz
Equivalent noise level
13 dB-A
Sensitivity
20 mV/Pa
Signal to Noise
81 dB-A
Preattenuation Pad
-20 dB
Bass cut filter
160 Hz
Electrical impedance
200 Ohms
Recommended load impedance
1000 Ohms
$200 plus shipping.


Listing #1731501 - Submitted on 06/02/25 by Callsign WY8D - IP: c-174-174-168-4.hsd1.mi.comcast.net
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 POWERSUP - Tripp Lite 1200W 120V Line Conditioner  
Tripp Lite series 1200W 120V Line Conditioner - Automatic Voltage Regulator (AVR), AC Surge Protection, 4 Outlets
Maintains usable 120V nominal output to sensitive electronics during severe brownouts and overvoltages.
Prevents surges and spikes from damaging circuitry. Filters out potentially disruptive line noise.
Corrects under- and overvoltages in 89V–147V range
Protects against spikes with 1200 joules of surge suppression
Monitors power status with front-panel diagnostic LEDs
Features 4 NEMA 5-15R rear outlets
This unit was purchased last summer for a project, but never used.
I am asking $125.00 plus $20.00 towards shipping.
Prefer postal money order, or check with time for clearing.
The LC1200 is sold As Is no returns.
Thank You for looking:
Allen K3HQC


Listing #1731367 - Submitted on 05/31/25 by Callsign K3HQC - IP: c-174-54-77-10.hsd1.pa.comcast.net
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 RADIOHF - Drake LP-1000 Low pass filter  
Drake LP-1000 lpow pass filter in excellent condition. Good for 1 KW up to 30 Mhz
$40.00 plus postage by Canada Post


Listing #1731338 - Submitted on 05/31/25 by Callsign VE3AMZ - IP: host-69-41-201-220.pe.mccl.ca
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 RADIOHF - B&W 1 KW Low pass filter  
B & W 425 Low pass filter in good condition works up to 30 Mhz at 1 KW $35.00 plus postage by Canada Post


Listing #1731335 - Submitted on 05/31/25 by Callsign VE3AMZ - IP: host-69-41-201-220.pe.mccl.ca
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 RADIOHF - Elecraft CW Filters  
Elecraft CW Filters
KFL3A-200 $75 SHIPPED
KFL3A-400 SOLD


Listing #1729645 - Submitted on 05/17/25 by Callsign K9DTC, Modified on 05/30/25 - IP: c-98-253-212-63.hsd1.il.comcast.net
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 RADIOHF - Elecraft K3 K3S 6K AM filter - New  
ELECRAFT KFL3A 6K AM FILTER FOR YOUR K3 or K3S -
New in box.
$139.99 delivered - check, Zelle, PP FF ok.
This is my most asked for filter,and I almost never have one.
I will also sell one K3S ,and other options in separate auctions.
I can be reached through email if you have questions about this unit.
Larry K6RO
Unit will be shipped via USPS mail,or pickup in 04015 is fine also.


Listing #1731086 - Submitted on 05/29/25 by Callsign K6RO - IP: syn-067-253-101-060.res.spectrum.com
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 RADIOHF - Elecraft K3 and others KUSB Cable -   
ELECRAFT K3 KUSB CABLE - CONNECTS K3 TO YOUR COMPUTER - MUST HAVE !
$24.99 delivered - check, Zelle, PP FF ok.
17 inches long.
Use this one if your laptop is close by , or use an extension if you have one handy.
I have 3 foot versions in another listing.
This cable will connect your K3 to your computer USB port...These are cables that came with K3 radios that I have purchased.I use one of these just about every day to update firmware ,or configure filters.
The KUSB cable is a USB to RS232 adapter cable intended to support the connection the K3 Utility to the original K3, KPA500 and other Elecraft products. It is supported on Windows, MacIntosh and x86 Linux operating systems.
The KUSB cable enables computer communication with a number of Elecraft's products including, the KPA500, K3, P3, KRC2, W2 and K2.
Please see pictures for more details.Local pickup is also fine.
I can be reached through email if you have questions about this unit.Larry K6RO


Listing #1731082 - Submitted on 05/29/25 by Callsign K6RO - IP: syn-067-253-101-060.res.spectrum.com
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 RADIOHF - Elecraft K3 + others KUSB Cable - New !  
Brand new aftermarket part..works great !
$31.99 delivered - check, Zelle, PP FF ok.
ELECRAFT K3 KUSB CABLE - CONNECTS K3 TO YOUR COMPUTER - MUST HAVE !
This cable will connect your K3 to your computer USB port...These are cables that came with K3 radios that I have purchased.I use one of these just about every day to update firmware ,or configure filters.
The KUSB cable is a USB to RS232 adapter cable intended to support the connection the K3 Utility to the original K3, KPA500 and other Elecraft products. It is supported on Windows, MacIntosh and x86 Linux operating systems.
The KUSB cable enables computer communication with a number of Elecraft's products including, the KPA500, K3, P3, KRC2, W2 and K2.
Please see pictures for more details.Local pickup is also fine.
I can be reached through email if you have questions about this unit.Larry K6RO


Listing #1731079 - Submitted on 05/29/25 by Callsign K6RO - IP: syn-067-253-101-060.res.spectrum.com
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