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

Ameritron ALS-600 Amplifier: Ameritron ALS-600 Amplifier. Rated 160-15M, 600 watts PEP, 400 watts CW. I do not believe this one has the 12-10M modification, but have not opened it to check (the AUX position is silent on receive, indicating that the mod has not been installed). Amp works and and appears to be operational, but sold as is. $925 net to me. Will ship at your cost, or pick-up in St. Louis, MO. US only. Lou, W0FK; Listing #1753773 - Submitted on 12/26/25 by Callsign W0FK, Modified on 01/17/26 - IP: syn-071-085-210-083.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Alpha 77: Great working Alpha 77.
Works like it should legal limit plus.
Lid had vent holes drilled in it. Replacement lid should be easy to find for a stock look. Custom cover included.
Maybe interested in a Thermal Drone trade.
$3500 pick up or meet up to 100 miles.; Listing #1756031 - Submitted on 01/17/26 by Callsign W5HJA - IP: customer.dllstxx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: RM Italy KL-203-P 100W SS Amplifier: See Picture: More available.
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RM ITALY SOLID STATE AMPLIFIER
MODEL: KL203-P
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PART OF AN SK ESTATE I'M HELPING TO LIQUIDATE.
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From a "Smoke & Pet Free" Shop/Shack.
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In Excellent Condition, Looks New/Unused to me!
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BENCH TESTED, WORKING FINE!
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Wired with about 5-FT of Heavy Duty Gauge DC Power Cable.
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See PDF Link below for More Tech/Spec's:
https://www.rmitaly.com/en/product/kl-203-p/
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The SK Owner did a LOT OF P.O.T.A & Portable Operations, and used this amp with several of his XIEGU QRP Radio's.
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He had 5 of these amps, this is the last one.
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FYI: These are "OUT OF STOCK" Everywhere I have looked, so apparently it's VERY POPULAR with POTA/QRP'ers!
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***BONUS*** I'll provide a short RF Patch cable with PL-259's if you need one!
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$160.00 Shipped
Paypal, Zelle, USPS M/O
Tnx, Chris-WD8EEQ; Listing #1755947 - Submitted on 01/16/26 by Callsign WD8EEQ, Modified on 01/17/26 - IP: c-73-161-60-200.hsd1.mi.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ALPHA 78 HF AMP.: ALPHA 78 HF AMP. REMOVED FROM SK WORKING STATION. NO DENTS OR OTHER DAMAGE. WIRED FOR 220. NON-SMOKE SHACK. $1300.00 OR BEST OFFER.
PICK-UP NEAR WACO, TX.; Listing #1754554 - Submitted on 01/03/26 by Callsign AA5RT, Modified on 01/17/26 - IP: syn-192-063-043-055.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: 30L-1 amplifier PS & relay board: FSL-1 amplifier PS & relay board
Be ware of cheap off-shore copy version at some auction sites. The made in China copy version selling higher than my price.Choose the original since 2007. The best reputation 30L-1 power supply board for $75 Plus $13 for USPS priority mail.Board uses 1000V 3A diodes in series, and 105 deg C caps, 4 times of life compared to 85deg C caps, 220 uF 6 of them. The Heat sensitive caps are under pc board while the Heat generating bleeder resistors are above the PCB, no chance that Heat damage the capacitors. assembled and tested. Relay board changes original -170V, 70mA to -15V 1mA or less. If you use relay controlled radio for the 30L-1, Relay board is a must.Price $30, Ripple filter for relay and bias22uF 250V and 1K ohm .01 uF 630V reduction high 60hz ripple bias supply & another 22uf Bias cap & MOV protection.; Listing #1756008 - Submitted on 01/17/26 by Callsign K6HM - IP: 75-37-192-218.lightspeed.lsatca.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ACOM 1000 HF Amplifier: Acom 1000amp, 1kw amp, in excellent working and cosmetic condition. Used in a non smoking pet free environment. Also included is a spare tube (Minimum $300 value) and a custom cover. Priced to sell $2100.00, plus shipping. will be shipped in original boxes. Paypal accepted for payment.; Listing #1755965 - Submitted on 01/16/26 by Callsign N2XH, Modified on 01/16/26 - IP: pool-100-40-200-203.pghkny.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
QRO HF-1000 linear Amplifier: QRO 1KW amplifier in excellent condition, low hours on tube, runs quiet and cool. $1000 cash at meet up within reasonable distance of 40013. No ship too heavy.; Listing #1755983 - Submitted on 01/16/26 by Callsign AC4NA - IP: 12.215.22.218; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
GONSET 6 METER POWER AMP: This 6 meter AMP uses a 4CX350A TUBE AND COMES FROM AN SK ESTATE IN SOUTH CAROLINA. WHEN I REMOVED THE AMP FROM SKs Shack I left all relays and hook up cables attached. If you have serious interest let me know and I can send pictures of rear panel with all the cables etc.
I have been a ham for over 60 years and have never seen one of these AMPS.
Quite a piece. $400 picked up or you pay shipping.; Listing #1755977 - Submitted on 01/16/26 by Callsign W7DTD - IP: syn-068-184-142-106.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
For sale: Ameritron 811H amplifier: For sale ameritron 811H amplifier nice condition non smoking shack. Used for several years with no issues. Local pick up around the Melbourne Palm Bay area in Florida. Asking $500.00 sold as is but again nice amp and works the way it should. Will consider shipped for $650.00 conus buyer pays for shipping.
Thanks for looking 73; Listing #1746987 - Submitted on 10/21/25 by Callsign KF4PFI, Modified on 01/16/26 - IP: syn-072-186-233-246.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Mercury III LDMOS Amplifier For Sale: Have a Very Nice Mercury III for sale
Great condition and comes with power cord.
Would like to sell locally pick up preferred.
Can Demo at my QTH.
$2650.00
Thanks Mike, Good on QRZ!; Listing #1755966 - Submitted on 01/16/26 by Callsign N2MDX - IP: 107.122.189.139; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend