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

F.S. AMERITRON AL-800H w/spare tubes: I have an AMERITRON AL-800H amplifier in great working and cosmetic condition putting full 1.5KW+++ it comes with another spare set of 3cx800a7 with 95% efficiency on them, that's 4 of them in total with the same efficiency , I'll not sell separately. I prefer local pickup or I can ship at your expense.
Asking $1,850 ZELLE prefer or PP W/FEE; Listing #1764796 - Submitted on 04/12/26 by Callsign N3YV - IP: syn-035-145-135-189.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
WTB: MERCURY III S: I am looking for a very clean good working Mercury III S amplifier. It must work and look like new and have the original shipping box. It also needs to be shipped to Huntington Beach, CA. and from a non smoker.; Listing #1764791 - Submitted on 04/12/26 by Callsign W6MTM - IP: 47-155-193-27.fdr01.wmns.ca.ip.frontiernet.net; Click to Contact -- Send this Ad to a Friend
Ameritron AL811H: Ameritron AL811H with spare set of tubes and manual. 600w cw and 800w ssb PEP.
Great amp and always operated within specification.
Prefer local pickup, Nashville/Chattanooga. $900
Thanks; Listing #1764777 - Submitted on 04/11/26 by Callsign NB4M, Web Site: https://www.qrz.com/db/NB4M - IP: host-208-118-200-72.dtccom.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ALS-500M mobile HF amplifier -$900 OBO: **sale pending to Ron***
Hello, today we have an ALS-500M mobile HF amplifier for sale. It’s a late version with the actual Toshiba 2878’s in it. The power wire have been upgraded to heavier wire, and the power plug has been changed to an Anderson 175A quick connect with 4’ of 1/0 heavy cable to feed them. Provides full power on all bands and has the 10/12M board installed. Also included is a brand new remote control head for the amplifier. I’m asking $900 plus shipping, but am open to reasonable to offers. Feel free to email or text me 757-343-120 (one) with any questions. Shipping is from Norfolk, VA, or local pickup available.
73,
Mike KO4YAO; Listing #1764335 - Submitted on 04/07/26 by Callsign KO4YAO, Modified on 04/11/26 - IP: 172.59.116.92; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
For Sale: ACOM 1200S amp and 06AT Tuner: Bought these from DXE in October 2025. Paid upwards of $5700 for this amp and tuner, with the sales taxes added in. Will include the original sales receipt in the box. Wired for 220v but easy to change to 110v with 500w max out.
Amp and tuner work exceptionally well together. The tuner has 4 antenna outputs, each of which has its own set of memories. With the proper interface cable, band and frequency changes track the radio instantaneously if the segment has already been tuned and stored. Will include the DXE branded Icom interface cable (a $55 value). Drive from 25-35W, depending on band, produces a full KW with no strain at all.
Priced to sell quickly at $4150 shipped CONUS for the set.
Local pickup save $150.00. Zelle, Venmo, PayPal (+3%), or personal check after fully clearing my bank all fine.; Listing #1764473 - Submitted on 04/08/26 by Callsign AB1JV, Modified on 04/11/26 - IP: pool-74-97-42-179.prvdri.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Ldmos 2 mrf 1k80 water cooled: Custome made 2 chip ldmos with mrf1k80 will do 1500w with 20w in has touch screen and bandpas filters $3000 and shipped to lower 48; Listing #1764750 - Submitted on 04/11/26 by Callsign KK70NK - IP: 246.sub-174-215-16.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE, AMERITRON AL80B AMP: I have a new amp coming soon so my very trusty 80B is up for sale. Amp is nice condition and works like it should. Puts out 800 to 1K depending on freq and antenna. It does have a slight xfrmr hum and has had for yrs, never any problems because of that. Comes with factory box, manual, and spare 3-500zg tube. As with all electronics please no returns. Shipping is not cheap so take that into consideration. Local PU in the San Antonio Tx area would be nice. Asking $1000 plus shipping. Tnx; Listing #1764650 - Submitted on 04/10/26 by Callsign NA5AR, Modified on 04/11/26 - IP: fttp-168-182-36-99.becfiber.com; Click to Contact -- Send this Ad to a Friend
Ameritron Als-606 Solid state Amp -: ALS-606 Hf amp. 160-6 meters 600 Watt Output. Works and looks 100%
Light weight Power Supply (Switcher) I have all boxes.
$1300 Shipped (in Florida) WA3QCV Tim 386-931-5709; Listing #1764204 - Submitted on 04/05/26 by Callsign WA3QCV, Modified on 04/11/26 - IP: syn-097-101-064-013.res.spectrum.com; Click to Contact -- 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″

Free Bonus: Built-In WiFi — 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.

--$199 plus $10 shipping; Listing #1764657 - Submitted on 04/10/26 by Callsign KV5J, Modified on 04/11/26, Web Site: http://www.kv5j.com - IP: unn-149-88-22-77.datapacket.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: New Mini Circuits ZHL-32A+: New 50 Ohm Mini Circuits Laboratory Model ZHL-32A AMPLIFIER. Medium high power 29dBm min, high IP3, +38dBm typ .05 to 130MHz HF/VHF. Asking $100 plus shipping. Have a few of these and will make a deal on more than one. https://www.minicircuits.com/pdfs/ZHL-32A+.pdf; Listing #1764700 - Submitted on 04/11/26 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