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

WTB Plate Transformer for Ten-Tec Centur: Looking for a replacement Plate transformer for a Ten-Tec Centurion 422 amplifier.; Listing #1764102 - Submitted on 04/04/26 by Callsign W5KG - IP: 108-193-8-94.lightspeed.btrgla.sbcglobal.net; 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 #1763890 - Submitted on 04/02/26 by Callsign KV5J, Modified on 04/04/26, Web Site: http://www.kv5j.com - IP: customer.mmmiflx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE: AMERITRON AMPS.: FOR SALE; AMERITRON HF AMPS All in working condition AL 1200 ALS 1406, AL 82 AL 1500 AL 80A email or call for more info and prices. Will drive a reasonable distance w5wec38 at gmail.com 870 759 2626; Listing #1761973 - Submitted on 03/14/26 by Callsign W5WEC, Modified on 04/04/26 - IP: host4-231-170-68.xipline.com; Click to Contact -- Send this Ad to a Friend
FOR SALE: ACOM 1000 Amplifier: Acom 1000 amplifier in perfect condition, no scratches, dings or dents. Low time on this amp, used sparingly and covered when not in use. One owner, non-smoking environment. Currently wired for 220VAC. Have manual and original factory carton. Prefer local sale (WA state) but could ship if necessary. $1900 if you pick it up, $2200 if I have to ship it - continental USA only.; Listing #1764012 - Submitted on 04/04/26 by Callsign KN7T - IP: c-66-235-43-4.sea.wa.customer.broadstripe.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: ICOM PW2 1KW amplifier: I have for sale this excellent condition working Icom PW2 1-KW SS amplifier. Comes with all cables and manual from manufacturer. Has factory box. Wired for 220v. Works fine on all bands
Will max at 500-watts if using it on 115v
price $4799
Plus shipping; Listing #1763993 - Submitted on 04/03/26 by Callsign K2ZZ - IP: 185.195.59.14; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Mercury IIIS: Up for your consideration is a Mercury IIIS amplifier, a power house performer tha's been well take care of in a non=smoking enviroment. As always I keep all my gear pristine and meticulously maintained. This amp looks great ( not a single dent or mark ) and performs even better. Asking $2 700 shipped ( 13% discount over original price when is available) . Will be shipped on the original box via UPS to CONUS. I accept Zelle.
Attached Files:; Listing #1763979 - Submitted on 04/03/26 by Callsign WT2D - IP: c-73-107-243-247.hsd1.fl.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ACOM 1000: In perfect working condtion. Has a scratch on top that i can send a picture of. Will include a spare gu74b tetrode. Asking $2500.; Listing #1763975 - Submitted on 04/03/26 by Callsign NW0T - IP: 170-64-88-229.frm01-oa01.frm.ne.allofiber.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Icom IC-PW1 Amplifier: Price Reduction. This is from my father's estate. This is is main station amplifier and was in use when I disconnected everything. Asking $1400 plus shipping. Willing to travel a reasonable distance from south west Michigan to meet up. SN #1200. I have not tested this myself, I have been out of the hobby for 25+ years, but this has been in service up to me disconnecting the station. Smoke Free Home. Please email if interested.; Listing #1757670 - Submitted on 02/02/26 by Callsign N8UGD, Modified on 04/03/26 - IP: 45-26-131-187.lightspeed.gdrpmi.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
SPE Expert 1K-FA Amplifier: We are assisting Jim / K4BSE in closing down his shack. Jim has a real nice SPE Expert 1K-FA amplifier for sale. This amp (S/N 155001995) has the ATU. Its only problem is that a the screen isnt lighting, but Jim uses the Expert Utility program to control the amp. The screen problem can be cured for about $200 according to SPE Expert's certified technician down in TX. Jim is looking for $2000 or best offer. More information, contact Jeff / K1ZN jacantor9 at Gmail.com; Listing #1763136 - Submitted on 03/25/26 by Callsign W4NT, Modified on 04/02/26 - IP: syn-035-129-189-022.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: ICOM IC-2KL Power Supply - parts/rep: I have For Sale an ICOM IC-2KL Power Supply. This is for a non-working PARTS or REPAIR. I think it has voltage regulation issues. Amp goes into fault protection when you key up. This is for the Power Supply ONLY. I am asking only $100 plus shipping. Local pick-up is best as this PS is heavy. I can meet you in the Oklahoma City Area or I will have it at the Green Country Hamfest in April 10-11.; Listing #1763891 - Submitted on 04/02/26 by Callsign N5OHL - IP: ip24-253-247-237.ok.ok.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend