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

Mercury Lux legal limit: Lux amplifier works and look excellent.
2 years old and have original boxes. Non smoker
Price 3500.00. Firm
Getting off HF.
Pick up local or pay actual shipping ups only and postal money order or pick up cash.
Rich kf2gg; Listing #1768174 - Submitted on 05/16/26 by Callsign KF2GG - IP: pool-100-1-8-65.nwrknj.fios.verizon.net; 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 05/16/26, 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
Amps for HF, 6m, 2m and 70cm: HF Amplifiers For Sale:
Acom 1000 1KW HF/6M $2900
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6 Meters:
RF Power Labs Solid State 400-500 Watt Base Amp with Power Supply 120V
For repair - Make Offer
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2 Meters:
RF Concepts 2-317 30in 170out Preamp SSB Delay etc. $400 Shipped
Mirage B310G SOTA etc 1/4W to 8W In 100W Out with Preamp SSB Delay $310 Shipped
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70cm UHF:
Mirage D1010 Brown Face with SSB Delay etc.
10 in 100 Watts out
$375 Shipped; Listing #1768161 - Submitted on 05/16/26 by Callsign W4JST - IP: 73.99.134.215; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
heathkit sb200 power transformer: working power transformer 85.00 plus shipping; Listing #1759430 - Submitted on 02/18/26 by Callsign WR4F, Modified on 05/16/26 - IP: 46.110.132.26; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
NICE Heathkit HF SB-220 AMPLIFIER: Excellent physical and working condition HF amplifier. 2kW PEP input linear amplifier (approx. 1100-1600W output) for 80, 40, 20, 15, 10 meters amateur radio bands, renowned for durability and using two 3-500Z tubes. Maximum drive 100Ws, I limited input for output of 1,000 watts to extend tubes/radio life All Capacitors and Tubes replaced as required. Full output tubes and all controls and lights work as they should. Harbach mods made to allow work with modern radios. Weight - 48 lbs, Dimensions - 14-7/8” W x 8-1/4” H x 14-1/2” D, wired for 120VAC but can be easily changed to 220 VAC. eHam rating of 5. Comes with custom dust cover and manual. From a non-smoking environment.
Asking price firm at $1,000 for pick-up only in Morris Plains NJ. Can meet at reasonable distance from QTH.
If both the Amp & Palstar HF AT-Auto Tuner(Kessler Edition) posted are purchased, I will include the cabinet shown at no cost.
Thanks for looking! Ed KD2DNB; Listing #1767998 - Submitted on 05/14/26 by Callsign KD2DNB, Modified on 05/16/26 - IP: pool-96-225-78-40.nwrknj.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE ACOM 1000 6 THRU 160: SOLD PENDING FUNDS. 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, Modified on 05/15/26 - IP: fttp-168-182-36-99.becfiber.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
wanted: plate and load knobs for an AL-811 amp.; Listing #1768136 - Submitted on 05/15/26 by Callsign W4MCX - IP: c-174-48-83-42.hsd1.fl.comcast.net; Click to Contact -- Send this Ad to a Friend
Alpha 8410: I have an Alpha 8410 in like new condition inside and out. Included is the factory manual with the factory test report presets and schematics and embroidered cover. This amplifier is 100% operational and 99% new cosmetically. This is the higher gain model, legal limit with 20w, legal limit ++ $3300 pickup or meet within reasonable distance. Buyer has option of shipping on their dime. Will also entertain trade offers; Listing #1768003 - Submitted on 05/14/26 by Callsign W4EKY, Modified on 05/15/26 - IP: 173.80.201.26; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE: SB220 FILAMENT XMFR: SB 220 FILAMENT/BIAS TRANSFORMER. #54-238 used. $125 plus shipping. Cash, check or PayPal friend & family. If ad is up the xmfr is still available.; Listing #1768126 - Submitted on 05/15/26 by Callsign VA5DX - IP: 45.42.128.159; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Transworld TW-1000 Amplifier: SOLD SOLD SOLD...Pending Shipment...Transworld TW-1000 1-30 Mhz continuous 1KW commercial solid state amplifier, uses 8 MRF422 transistors and has a 125 amp 28 vdc power supply included in purchase. 50 watts in gets you right at 1KW. I have 4 amps so something needs to go and I still prefer tube amps. Includes power supply, printed copies of manuals. Works great and no issues. Prefer trades but will sell for $750 plus all shipping costs paid by check or money order or cash if picking up. You can pick it up if you like to try before you buy. No I will NOT pay shipping at this price. If you do NOT email through the QTH system I will not respond to your email. There is no warranty implied or given as I can't control the use of this amp, I have videos of it operating if you would like to see them just ask.; Listing #1767949 - Submitted on 05/13/26 by Callsign W5LW, Modified on 05/15/26 - IP: 98.96.149.167; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend