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

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
Alpha 8410 amplifier: 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. Embroidered cover is also included. The cathode resistors were recently replaced per Alpha’s spec. Screen voltage and bias have all been verified and 100% within OEM spec. This amplifier is perfect. Legal limit with 20w, legal limit ++ $3300. pickup or meet within reasonable distance. Buyer has option of shipping on their dime. Will add cash and trade towrds a 77SX, Emtron or something with more headroom.; Listing #1766628 - Submitted on 05/01/26 by Callsign W4EKY, Modified on 05/09/26 - IP: 170.85.90.83; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Kenwood TL-922A: I have for sale a Kenwood TL-922A. It is in good overall condition. The front panel is clean and in good shape. It runs well on 15-160 meters. It has not been modified to operate on 10 meters but I do have the instructions to make the modifications. The amplifier has the original Eimac 3-500 tubes and is currently wired for 110 volt operation. Please e-mail with questions. I have many pictures available if you are interested please let me know. Local pick up only in Plain City, Ohio. I am about 45 minutes from the they Dayton Hamvention, just outside Columbus if you are coming to town.
Price -$975
Thanks,
Mike; Listing #1767506 - Submitted on 05/09/26 by Callsign K8GW - IP: syn-174-105-035-076.res.spectrum.com; 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 #1767196 - Submitted on 05/06/26 by Callsign KD2DNB, Modified on 05/09/26 - IP: pool-96-225-78-40.nwrknj.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ETO Alpha 78 HF amplifier: ETO Alpha 78 Peter Dahl transformer. 3CX800A7 upgrade. Very nice legal limit amp. More pictures available. No shipping but I can arrange travel to meet you a significant distance away. $1400.; Listing #1767499 - Submitted on 05/08/26 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 811H Amplifier: Amp is from a local SK estate.
Has had the 10 Meter mod done . So 160-10 Meters
Comes with asset of Penta-Labs tubes in the their boxes and the original tubes in the amp now.
Amp is working as it sure as I have been using it on 40 and 80 meters every day for 2 weeks. I added protection diodes to the meters.
I’ll throw in a dual RCA cable for PTT / LC hook-up
Prefer local P/U or delivery with –in 1-2 hours of my QTH (w help for fuel ) $700
Shipping is possible at your expense.
Fred AI3Z at comcast.net
443-223-5142 Lv Message; Listing #1767492 - Submitted on 05/08/26 by Callsign AI3Z - IP: c-71-200-139-47.hsd1.md.comcast.net; 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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$435 plus shipping; Listing #1767488 - Submitted on 05/08/26 by Callsign W8UAB, 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
Alpha 9500: This is a legendary Alpha 9500 HF amplifier. It exceeds legal limit on all bands. Has some minor cosmetic blemishes per the photos, but I was getting peaks of 1800W, 2100W and 2600W out during the course of my testing (see photos).
Amp will be shipped UPS insured in its original Alpha boxes, and transformer will be secured to a plywood base on thick styrofoam, and double boxed in bubble wrap and expandable foam packing.
The last 9500 to sell was earlier this month on EBay for close to 5K.
$3699 plus shipping (via Pirateship to save costs)
The Alpha 9500 is a fully automatic, legal-limit HF linear power amplifier designed for high-performance amateur radio use. It is widely recognized for its "key-down forever" capability, meaning it can deliver a full 1,500 watts of output power continuously across all modes—including SSB, CW, RTTY, and digital—with no duty cycle limitations. [1, 2, 3]; Listing #1767472 - Submitted on 05/08/26 by Callsign K1FIE - IP: c-50-189-24-238.unallocated.comcastbusiness.net; Click to Contact -- Send this Ad to a Friend
Ameritron AL-811 600-watts HF amp: I have for sale this nice working 600-watts 160-10m AL-811 amplifier.
Price is $550
Prefer local pickup.; Listing #1766276 - Submitted on 04/27/26 by Callsign K2ZZ, Modified on 05/08/26 - IP: 104.28.172.150; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend