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

Alpha 76a: I have here a really nice alpha 76a that has been converted to 3cx800a7's .
The tubes MIGHT have 5 hours talk time on them . This amp has had 6:1 planetary drives installed on both load and tune controls for easy tuning . It has had the low drive modification performed .plate current meter doubling shunt .the Wattmeter upgrade . Plus the 10 meter mod . All modifications were performed by dick byrd . Price is $1800.00 plus shipping or it can be picked up at the dalton hamfest . I might even do some trading if you have something that REALLY catches my eye . This is a really nice amp . If treated right it should be the last amp you'll ever have to buy; Listing #1758134 - Submitted on 02/07/26 by Callsign KG4WPW - IP: 47.sub-174-218-57.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Heathkit HF Amplifier w 2X3-500 Tubes: One used Heathkit H.F. Amplifier, the SB220 using two of the 3-500 tubes
currently wired for 120VAC and can be change easily to 220 VAC. Keying
was modified for low voltage keying. For sale at $915.00 plus shipping.
Preferred local pickup in Southern California. I am good on QTH call sign lookup
as W6BBA and address is current. If local pickup with cash, I will include Free,
the Heathkit Power/SWR meter shown in the picture!, that is worth $150! A
bargain, so I don't have to ship it! Thanks for looking at my ads. 73's; Listing #1758132 - Submitted on 02/06/26 by Callsign W6BBA - IP: 104-11-235-174.lightspeed.irvnca.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Amp Supply LK500ZC 1 KW 160M-10M $800: The amp is an early model and does not have the WARC bands. It runs a pair of Amperex 3-500s. It will load up on 17 m with 700 watts out with no difficulty when the band switch is on 14 M. The ALO board has failed and has been bypassed. The ALO circuit was designed to detect unsuitable loading conditions and shuts down the amp. Despite this, the amp operates as expected. A new rectifier board (new caps, diodes, resistors) has been installed. High voltage is 3000+ VDC. The amp is in excellent physical condition – no dents, minor hairline scratches. The photo shows 1 KW output on 14m. More photos on request. Shipping options: free pick up in Boulder CO or I will drive up to 3 hours from Boulder CO to deliver the rig for $75 or buyer makes his own shipping arrangements at his expense. Because of the amps’s weight and possible damage during shipping, I will not box up the amp and ship it but will deliver it to a local shipper. $800 Cash or USPS money order only.; Listing #1757872 - Submitted on 02/04/26 by Callsign N3AJB, Modified on 02/06/26 - IP: c-73-243-93-108.hsd1.co.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Amp Supply LK550 (3) 3-500Z amp: Selling my amp supply LK550.. 160-10M keeps blowing one of the fuses with all the tubes out sold as is. Peter Dahl plate and filament transformer. 2 out of the 3 eimacs are ok and included with the sake. I will not ship but will meet in Massachusetts to deliver. Email me for pics . This is a 2 piece unit.. $1500; Listing #1758122 - Submitted on 02/06/26 by Callsign W1CJF - IP: 151.240.45.96; Click to Contact -- Send this Ad to a Friend
QRO-2000 w/ New Penta tubes: QRO-2000 in perfect condition. Brand new Penta 3-500ZG tubes installed 1/14/25. The amplifier works as it should. Come try it out or will ship at buyers expense in three boxes. $2000 OBO. Also have a FT-2000 listed separately that I will make a deal on together.; Listing #1756131 - Submitted on 01/18/26 by Callsign W4EKY, Modified on 02/06/26 - IP: 170.85.92.202; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Flex Power Genius PGXL Legal Limit Amp: I have a PGXL for sale.
It is in excellent shape and works 100%.
It has a few minor scratches but you really have to look hard to see them.
Amplifier Feature Highlights:
1.8–54 MHz coverage
Full legal power 1500W (100% duty cycle ICAS), in all modes, up to 2000W
First ever MEffA™ system (Maximum Efficiency Algorithm) control efficiency as a function of output power
Fully SO2R capable — 70dB nominal isolation between exciter inputs
Smart control of cooling — real-time settings of drain voltage, drive and fan speed for best thermal performance
Exceptional spurious performance owing to diplexed filters for carrier and harmonics
Ultrafast SWR protection
Remote control with desktop application in LAN or WAN networks
CAT, Band decoder, LAN interface for operation with other exciters
Shipping info: 24″ x 12″x 19″ 45 lbs
I have sold my 6600M so this is in excess to my needs.
This sale includes the amp, power cord and Original double shipping boxes.
Price is $4650.00 shipped by UPS Ground.
T; Listing #1758105 - Submitted on 02/06/26 by Callsign W5IB - IP: customer.dllstxx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
looking for Palstar. LA-1 Mint: Looking for Palstar LA1 Amplifier in mint condition, full output, no scratches or scuffs. Prefer original double boxes. Please send pic as there have been several models of these and the logo position has changed. Also send first 4 digits of serial number please. Contact me through here at QTH.COM. Also send phone number. I cannot do business with anyone who will not provide their phone number (cuts down on scammers, of which I've had many answering this ad.) Thanks. Bob KK8ZZ; Listing #1757062 - Submitted on 01/27/26 by Callsign KK8ZZ, Modified on 02/06/26 - IP: ec2-3-142-173-106.us-east-2.compute.amazonaws.com; Click to Contact -- Send this Ad to a Friend
keying module two amps /replacesARB704: $80.00 plus shipping Paypal Zelle
will key older high voltage/modern low voltage amplifiers this is a low input ptt one transceiver to two amplifiers will key two modern or older amps no cable swamping. safe full isolation PTT optocoupler 100% electrical isolation from your modern radio. 12vdc operation has standby switch. comes with power pigtail. will work great in line with your Ameritron ARB704 RCA jumper from ARB704 to the RK102 now you equipment is safe and isolated. you can mix and mach old and new amplifies; Listing #1758093 - Submitted on 02/06/26 by Callsign KJ6VRC, Web Site: https://www.qrz.com/db/KJ6VRC - IP: customer.snjecax1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
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 #1758075 - Submitted on 02/06/26 by Callsign W0FK - IP: syn-071-085-210-083.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RM Italy BLA350 HF Amp $750 Shipped: The RM Italy BLA350 Solid State Amateur Radio Amplifier covers the 160 thru 10 meter Ham Bands, and with 12 Watts or less drive it delivers up to 300 Watts output. It is the perfect match for most QRP rigs and is not designed for 100 watt radios. The matched pair of MRF150 MOSFETs are protected against overdrive spikes, high VSWR, and high heat sink temperature. I've used it with an FT-818 and with about 7 Watts of drive delivers around 200 Watts output on 40 meters. The BLA350 samples the RF input and can set itself to the band you are operating on. The band can also be set manually from the front panel. The internal, transformer-type (low-noise) power supply is rated at 110 Volts at 8 Amps max, so you can easily power this amplifier from a standard AC outlet. Price is $750 shipped (CONUS). The package will also include the user manual and power cord. I accept PayPal (please add 3%) or USPS Money Order. Thanks for looking!; Listing #1757899 - Submitted on 02/04/26 by Callsign N0KMR, Modified on 02/06/26 - IP: c-24-245-43-14.hsd1.mn.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend