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HF Amplifiers

Displaying ads 1 to 10 of 209 ads in this category.
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 DX Electronics HF solid State Amp w/PS
Hello I have a DXworld Electronics DX Zeus HF Solid State Amp. It has auto band switching Web support . Low drive and up to 600 watts. looks brand new. I am asking $1150 shipped or can be picked up at my home in Killen Alabama.

Listing #1764953 - Submitted on 04/13/26 by Callsign KB4HL - IP: 68.35.93.84
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  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″

Free Bonus: Built-In WiFi — 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.

--$199 plus $10 shipping


Listing #1764657 - Submitted on 04/10/26 by Callsign KV5J, Modified on 04/13/26, Web Site: http://www.kv5j.com - IP: unn-149-88-22-77.datapacket.com
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 For sale Drake L7 front sub-panel  
For sale a like new Drake L7 sub-front panel (Load Band Plate), see picture. $50 shipped CONUS.
Paul W5NTQ
713.203.0166


Listing #1764919 - Submitted on 04/13/26 by Callsign W5NTQ - IP: 99-25-95-175.lightspeed.hstntx.sbcglobal.net
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 ACOM 1000 HF + 6 Meter Linear Amplifier
I have an ACOM 1000 HF + 6 Meter Linear Amplifier for sale. It is the older brown model, but it is just back from a tune-up and is working well. It comes with a brand new tube. It also has an added fan to prevent over-heating, so should last for a long time to come. Cosmetically, it is in excellent shape with barely a scratch on it. Non-smoking, no animal household. I have replaced it with a digital amp that I can use remotely, so I have no use for this amp - my loss is your gain. Looking for some more power on HF/6? This is your answer. Looking for $1800 shipped. Work the world!

Listing #1758583 - Submitted on 02/10/26 by Callsign W3TI, Modified on 04/13/26 - IP: 70-91-14-221-static.hfc.comcastbusiness.net
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 Ameratron ALS-606 Solid State HF Amp.
ALS-606 Hf amp. 160-6 meters 600 Watt Output. Works and looks 100%
Light weight Power Supply (Switcher) I have all boxes.
$1300 Shipped or Pickup (in Florida) WA3QCV Tim 386-931-5709


Listing #1764898 - Submitted on 04/13/26 by Callsign WA3QCV - IP: syn-097-101-064-013.res.spectrum.com
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 AL811H for sale or trade for a icom7300  
Ameritron AL811H Buy or Trade for a icom7300
4 brand new Penta 811A tubes, just recently serviced and tested to 800 amps SSB. Tunes very easily.
Nonsmoking and a no pet environment.
Case is as new with no dents or scratches. Looks as clean and good as new.
All boxes and manuals included.
Call 262-623-0411 or email to jrugg at wi.rr.com.
$800.00 plus shipping at my cost.


Listing #1764880 - Submitted on 04/12/26 by Callsign W9GTZ - IP: syn-173-089-017-057.res.spectrum.com
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 Elecraft KPA500 Linear Amplifier # 3262   
Elecraft KPA500 Linear Amplifier # 3262 - works great - Just back from Elecraft
$2825 Delivered - check, Zelle, PP FF ok.
This beautiful later model serial number amp was just serviced at Elecraft.
Invoice was $1058.00
Still sealed in wrapper.
First picture is just for info to show what it will look like.
Comes with manual,power cord,and service invoice.
Set up for 110v,and comes with 110v power cord.
Easy for you to change to 220v if you want.
Please see pictures for more details.
Local pickup is also fine.
I can be reached through email if you have questions about this unit.
Larry K6RO


Listing #1763779 - Submitted on 04/01/26 by Callsign K6RO, Modified on 04/12/26, Web Site: http://www.K6RO.com - IP: 209-76-88-34.raymorgan.com
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 Ameritron Al 800  
? FOR SALE – Ameritron AL-800 ?
Clean unit – no marks, no scratches.
Fully tested and working 100%.
? Strong output, ready to operate
? No issues, plug and play
? Price: $2,000 USD
? Serious buyers only – ready to


Listing #1764859 - Submitted on 04/12/26 by Callsign W1RCR - IP: 78.sub-174-255-119.myvzw.com
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 Delcon T210 Amplifier with power supply   
I have a Delcon T210 Amplifier. PS210 Power supply.
Have a complete extra RF deck to go with it.
Have the original manual.
Amp does Power up, problem with bias tubes. Need changed to modern version.
I also have some extra tubes, but I'm not sure if they are good.
Would rather not ship due to age.
Up for a trade, or 1200.00.
Thanks for looking.


Listing #1750581 - Submitted on 11/24/25 by Callsign NI4L, Modified on 04/12/26, Web Site: https://www.ni4l.com - IP: 172.58.54.245
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 WTB: DUD 4-400, 3-500 OR SIMILAR TUBES   
WANTED FOR PROJECT;
BURNED OUT, OPEN FILAMENT OR GASSY 5 PIN POWER TUBES LIKE THE 4-400, 3-500, 5867 OR SIMILAR TUBES. 304TL/H 4 PIN TUBES ALSO NEEDED.
Can do a check, USPS MO or PayPal.
Prefer local sale since shipping is so high, but ship is OK.
Check out my items and very good Feedback, too!
email to jtg4300 at yahoo.com
73, WA1BRI
J. Griffin


Listing #1752727 - Submitted on 12/14/25 by Callsign WA1BRI, Modified on 04/12/26 - IP: 47-199-186-130.fdr01.stgr.fl.ip.frontiernet.net
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