QTH.COM Ham Radio Classified Ads - Swap amateur radio HF VHF equipment buy sell trade on line

MISC - Heathkit HDP-121 Microphone: A very nice looking and functional Heathkit HDP-121 (Electro-Voice 619) microphone which is excess to my needs. Connector not included. $75 shipped CONUS. No returns.; Listing #1769683 - Submitted on 05/31/26 by Callsign K9VP, Modified on 06/05/26 - IP: 172.56.249.46; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
MISC - Astatic D-104 Microphone: Nice looking and works well. This one is the non-amplified version. $75 shipped CONUS, no returns.; Listing #1761201 - Submitted on 03/07/26 by Callsign K9VP, Modified on 06/05/26 - IP: 172.56.251.170; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ANTHF - SALE: Alpha Delta 4position coax switch: ***** PENDING SALE *****
Excellent Alpha Delta 4 position coax switch, B Model.
$75 shipped to lower 48.; Listing #1770136 - Submitted on 06/05/26 by Callsign K3XA, Modified on 06/05/26 - IP: ip68-100-98-166.dc.dc.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
MISC - SIGNAL ELECTRIC KEY: SIGNAL ELECTRIC KEY $50 SHIPPED; Listing #1767872 - Submitted on 05/12/26 by Callsign KB4J, Modified on 06/05/26 - IP: 199.250.231.12; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
AMPHF - FS :30L-1 amplifier PS & relay board: Be ware of cheap off-shore copy version at some auction sites. The made in China copy version selling higher than my price.Choose the original since 2007. The best reputation 30L-1 power supply board for $75 Plus $13 for USPS priority mail.Board uses 1000V 3A diodes in series, and 105 deg C caps, 4 times of life compared to 85deg C caps, 220 uF 6 of them. The Heat sensitive caps are under pc board while the Heat generating bleeder resistors are above the PCB, no chance that Heat damage the capacitors. assembled and tested. Relay board changes original -170V, 70mA to -15V 1mA or less. If you use relay controlled radio for the 30L-1, Relay board is a must.Price $30, Ripple filter for relay and bias22uF 250V and 1K ohm .01 uF 630V reduction high 60hz ripple bias supply & another 22uf Bias cap & MOV protection.; Listing #1762593 - Submitted on 03/20/26 by Callsign K6HM, Modified on 06/05/26 - IP: 75-37-192-218.lightspeed.lsatca.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOHF - FS: 275V regulator 4 516F-2 and PM-2 PS: Due to old 1956 design of 516F-2, or PM-2 power supply for Collins KWM-2 (A) or 32S series transmitters runs on 125V AC power Voltage, the 516F-2 supply should deliver 275V Low Volt becomes 330V Plus minus during receive mode of KWM-2(A), vacuum tubes get 330V which will shorten life of tubes and cause extreme hot temperatures affect other parts. KWM-2(A)and 32S series transmitter get lot of heat problems. I have a solution to keep the LV to exactly 275V either transmit or receive mode.Using 500V MOSFET and series of Zener regulators,LV is now tightly regulated which helps keep the VFO with no drift and no audio hum as it works as ripple filter.The board is 22mm x 30 mm by size, made with SMD components and can be fit to the sidewall of power supply. Price is $40 plus $6 for USPS. two or more it has to be shipped by priority, price is $13.check to my QRZ.com address.Other output V,150V or 250V or 300V if; Listing #1762591 - Submitted on 03/20/26 by Callsign K6HM, Modified on 06/05/26 - IP: 75-37-192-218.lightspeed.lsatca.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOVHF - Baofeng GT-5R DUAL Band HT - Read: Dual Band GT-5R Two Way Radio UHF VHF Ham Handheld 128CH VOX FM - Looks new
$29.99 delivered - check, Zelle, PP FF ok.
This radio that looks new came in an estate deal I am selling for a family.
Missing the antenna..
Just as pictured.
I charged it up,and it turns on and talks to me.
Please email with questions,
Larry k6ro; Listing #1770155 - Submitted on 06/05/26 by Callsign K6RO - IP: syn-067-253-098-241.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
TOWER - Rohn 40ft DOWN !: 40ft Roan tower /base SALE/down
Hi ,this tower has the other (4) 10ft parts .5 parts in all .Bring a TRAILER to pick up.$300 CASH firm. Other pics on request .Gillett P.A. pick up ONLY .W2TWM; Listing #1769606 - Submitted on 05/30/26 by Callsign W2TWM, Modified on 06/05/26 - IP: customer.nwyynyx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOHF - WANTED: IC_R-71A SHOORTWAVE RECEIVER: Looking for the receiver in excellent condition. Would like manual and original box if possible. Let me know your best price including shipping to 49770. Thanks Dennis; Listing #1770153 - Submitted on 06/05/26 by Callsign NONE - IP: syn-035-150-166-197.res.spectrum.com; Click to Contact -- Send this Ad to a Friend
AMPVHF - Mirage D1010 UHF Amp: Used brown face Mirage D1010 UHF amp for sale $150 or best offer plus shipping. Excellent repeater amp.; Listing #1770152 - Submitted on 06/05/26 by Callsign KC5MN - IP: hosted-by.i3d.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend