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

Harris RF104 HF Amp: 2.0 thu 30 MHz continuous. Eimac 3-1000Z. Legal
Limit. Literature indicates it can be moded to cover the entire 160M. Designed as a ship board at 275 lbs and well built. Motor driven variable. Pick up or will meet a reasonable distance from Tampa. Manual and cable. $500.00 firm. Also a mostly complete second parts RF104 available w/o tube for $100.00.
Cliff W4NJ; Listing #1767429 - Submitted on 05/08/26 by Callsign W4NJ, Modified on 05/09/26 - IP: 172.56.97.32; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Ten Tec Centurion: i have a real nice condition TenTec centurion hf amp. Amp operates on 220volt. 2 3-500z. i am located in east Tennessee. 900.00. k4tue, rickvassark4tue at gmail.com. 423-623-5899; Listing #1767559 - Submitted on 05/09/26 by Callsign K4TUE - IP: 107-196-93-8.lightspeed.knvltn.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
For Sale: Ten Tec Titan 425 & 253 tuner: For sale is an excellent condition Ten Tec model 425 legal limit amplifier and model 253 automatic 2KW tuner. The amplifier has 2 new 3CX800A7 Eimac tubes just recently installed. The tubes have less than ten minutes transmit time on them. Amplifier easily makes 1500 watts output on all bands into a dummy load. The 253 antenna tuner was made for this amp and performs beautifully. The old tubes were going soft but still makes 1500 watts with 60mA grid current. They will come with the amplifier. A good copy of the manuals will be provided. The tuner and amp will be sold together. I will not separate them. The amp power supply is very heavy so this is a local deal only. I will drive a reasonable distance to avoid shipping. This is a one way deal. Units are sold without any guarantees and will not be refunded. The tubes can be easily destroyed during tune up if the proper method is not followed. $3250 for the amplifier, old tubes and the tuner.; Listing #1767554 - Submitted on 05/09/26 by Callsign KT5D - IP: syn-047-040-218-042.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
TOKYO HY-POWER HL-45B 160-6m Amplifier: Perfect condition boxed as new original accessories, and paperwork
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$425 plus shipping; Listing #1767488 - Submitted on 05/08/26 by Callsign W8UAB, Modified on 05/09/26, Web Site: https://swap.qth.com/search-results.php?keywords=W8UAB&fieldtosearch=Call - IP: 104-169-198-75.bng02.nrwl.oh.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE ACOM 1000 6 THRU 160: This amp is great. Looks great and works great. Has the extra fan installed. Come in factory boxes, with manual and pwr cord. As we all know shpg has gotten way high but I will ship for $2100. Tnx for looking.; Listing #1767538 - Submitted on 05/09/26 by Callsign NA5AR - IP: fttp-168-182-36-99.becfiber.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
KPA500 RF Power Monitor: KPA500 RF Power Monitor — Real-Time OLED Display for Elecraft KPA500

Six critical parameters, always visible, updating 10×/second on a high-contrast 256×64 OLED. No menu cycling. No squinting.

Monitors: Power Output (0–700W) · PA Voltage · PA Current · SWR · PA Temperature · Band + Operate/Standby

3×2 grid layout — large fonts sized for quick reading across the shack.

Direct RS-232 integration via MAX3232 — no amplifier modification required.

Specs: XIAO ESP32-C3 · SSD1322 256×64 OLED · 9–14.8V DC · 100mA · 10 Hz update rate · 4″ × 2″ × 4″

Bonus: Built-In WiFi for remote use — web interface mirrors the OLED with a retro green-on-black aesthetic, updated via WebSocket. Includes Power, Operate/Standby, Fan Speed, and Band controls plus OTA firmware updates. Access via kpa500.local — no app required. OLED operates independently of WiFi at all times.

Includes: Assembled & tested unit, DC power cable, RS-232 cable, quick start guide.

--$229 plus $10 shipping; Listing #1767261 - Submitted on 05/06/26 by Callsign KV5J, Modified on 05/09/26, Web Site: http://www.kv5j.com - IP: mobile-107-77-201-55.mobile.att.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: ETO Alpha 78 HF amplifier: ETO Alpha 78. Peter Dahl transformer. 3CX800A7 upgrade. Very nice legal limit amp. More pictures available. No shipping. Can do some driving to meet. $1150.; Listing #1767527 - Submitted on 05/09/26 by Callsign KY7X - IP: customer.snjecax1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE AMERITRON AL 80B: Amp is in very nice condition and works well. Puts out 800 to 1K depending on freq and antenna. Never any problems. Comes with factory box, manual, and a spare 3-500zg tube. As with all electronics please no returns. Shpg is a killer these days but will ship on your dime. Local pickup would be nice in the San Antonio area. $900 plus shpg.; Listing #1766055 - Submitted on 04/25/26 by Callsign NA5AR, Modified on 05/09/26 - IP: fttp-168-182-36-99.becfiber.com; Click to Contact -- Send this Ad to a Friend
FS: New MACOM MRF-422 matched: New MACOM MRF-422 matched transistors. ASI MRF422 is Designed for 2.0 MHz to 30 MHz, 28 V High Power Linear Amplifier Applications. RF422MP Asking $150 each pair plus shipping. https://www.kynix.com/Detail/1314417/MRF422.html?gclid=Cj0KCQiAvqGcBhCJARIsAFQ5ke5OgDTFiJ3lDEfE-Z-FNAziV4EX7aPa5olk-Klx5rSqwE_LADKsBagaAqa3EALw_wcB; Listing #1767519 - Submitted on 05/09/26 by Callsign W1JCW - IP: 23-92-13-217.wirestar.net.wirestar.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE: HENRY 2KD5 AMPLIFIER: SELLING my Henry 2KD5 amplifier, working as it should, tubes are putting out expected output, clean, for more detailed info call me or email me. will sell for $850 firm, no shipping must pu at my QTH. will also sell as a package my Yaesu FTDX5000 listed in separate ad both for $2500.; Listing #1767491 - Submitted on 05/08/26 by Callsign WA4CWC, Modified on 05/09/26 - IP: 68.35.16.97; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend