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HF Amplifiers

Displaying ads 1 to 10 of 199 ads in this category.
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KA9FOX Wishlist on Amazon.com

 SPE Expert 1.5K
Selling my Expert 1.5K It works very nicely. 10 will get you 500, 20 about a 1k, and 28 about 1.4ish. It has a very nice tuner built good for about 5:1. The antenna switching can handle 4 antennas and two radios, along with a receive antenna. I'm sure you know what they look like, but feel free to email for pics. I will not respond to anyone who doesn't include their valid call on the email.
Asking $4400 shipped.
Thanks, 73
Tony N7ZS


Listing #1758017 - Submitted on 02/05/26 by Callsign N7ZS, Modified on 02/05/26 - IP: 104-181-75-17.lightspeed.renonv.sbcglobal.net
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 Ameritron ALS-1300  
I have from an ESTATE , A working ALS-1300. Just fully dummy load tested on all bands 1kw plus output.
Has 10m board.
Requires 240- volts.
I have the box for the amp, but not for the power supply.
Amp does have a few scratches and scuffs.
Can send pics upon interest.
This is pick up only.
Asking $1500.00


Listing #1758015 - Submitted on 02/05/26 by Callsign KW4LN - IP: 50.25.154.237
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 RM Italy BLA350 QRP Radio Amp   
The RM Italy BLA350 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 02/05/26 - IP: c-24-245-43-14.hsd1.mn.comcast.net
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 FOR SALE: Parts from a SB220 6m convers  
Parts salvaged from a Heath SB 220 6 meter conversion. Contact me for prices. PayPal friend to friend, check or cash. If ad is up the parts or some of the parts are still available.
The variable cap, both sockets, both door knobs, and all knobs have been sold.


Listing #1757847 - Submitted on 02/03/26 by Callsign VA5DX, Modified on 02/05/26 - IP: 45.42.128.159
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 Flex 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
This sale includes the amp, power cord and Original double shipping boxes.
Price is $4650.00 shipped and insured.


Listing #1757385 - Submitted on 01/30/26 by Callsign W5IB, Modified on 02/05/26 - IP: customer.dllstxx1.isp.starlink.com
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 ACOM 700S With LDG AT-1000 Pro Tuner
Acom 700 S with LDG AT-1000 Pro 1000Watt Automatic Antenna Tuner both in mint condition. Very, very lightly used in a non-smoking home. Health issues force me to sell before I go to the retirement home. Original manuals, included. Pick up best option so you can see it operate. If not, will ship in original box. Total for both items $2800.
You pay actual freight & Insurance. No returns due to parts swappers. Zelle or Cashiers check. If Cashiers check, will ship when check clears. Hate to be like this but I have been toasted before.


Listing #1757968 - Submitted on 02/05/26 by Callsign K4NJ - IP: 216-225-74-92.static4.bluestreamfiber.net
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 Extended Display for Elecraft's KPA500  


Extended Display Unit for Elecraft's KPA500

A compact, easy to read KPA500 Digital Display Unit (DDU). It allows the monitoring of five crucial readings all at the same time.

The DDU measures only 4X4X2 with an easy to read 2 line display that can be located at the operating position and the KPA500 located up to 100 feet away.

The DDU is designed with the following features:

1. Power amplifier's heat sink temperature
2. Power amplifier's high voltage supply voltage
3. Power amplifier's current
4. Power amplifier's output power
5. SWR that the KPA500 sees at its output
6. Operate or Standby mode
7. Band amp is tuned to

All cables supplied. Easy setup.


Newest Hardware and Software. $189 free shipping. PP only.

Last one this batch.



Listing #1757966 - Submitted on 02/05/26 by Callsign KV5J - IP: customer.lsancax1.pop.starlinkisp.net
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 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 #1757951 - Submitted on 02/05/26 by Callsign W1JCW - IP: 23-92-13-217.wirestar.net.wirestar.net
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 For Sale: Icom PW-1 HF Amp  
Icom PW-1 Solid State 1KW HF Amplifier. Covers 6-160 meters. Amp is in excellent condition. Purchased new SPE Taurus and no longer using.Comes with original manual and used in non smoking environment! PICK UP ONLY! or Can deliver to Traverse City hamfest on Feb 7th. Serial # 2600 $1500


Listing #1757270 - Submitted on 01/29/26 by Callsign KF8RU, Modified on 02/04/26 - IP: syn-024-180-123-039.biz.spectrum.com
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 LDMos power supply
I have two new LDMOS power supply units . I am asking $130 each shipped. Thanks

Listing #1752945 - Submitted on 12/17/25 by Callsign KB4HL, Modified on 02/04/26 - IP: 185.126.82.202
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