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HF Amplifiers

Displaying ads 1 to 10 of 196 ads in this category.
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 FOR SALE: ALPHA 4510 2-30MHz Meter  
FOR SALE: ALPHA 4510 2-30MHz 3KW Power/SWR Meter
This meter is in excellent physical and electrical condition.
Includes: 4500 Series Wattmeter User Manual and Alpha CD.
***DOES NOT INCLUDE AC to DC 12VDC POWER SUPPLY***
$750 Shipped
Additional pictures on my N4UXG QRZ Page


Listing #1756453 - Submitted on 01/21/26 by Callsign N4UXG - IP: 24.48.251.224
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 FS: SPE Expert 1.5-FA Amplifier  
I bought this amp used, direct from Bob Hardie, from repair work replacing the final. I've never taken it out of the box except to take pictures and thus never used since the repair. It has the ATU also. It's in mint condition with original box, carrying case, CD, warranty card and extra air filter. I believe it is a series 1? Serial number is 174800029. These sell new for $5995 now. Asking $3650 shipped. Contact info good on QRZ.

Listing #1753425 - Submitted on 12/22/25 by Callsign W6IBU, Modified on 01/21/26 - IP: 162-229-184-35.lightspeed.sntcca.sbcglobal.net
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 For Sale: Alpha 87A HF Amplifier   
For Sale Alpha 87A HF Auto-tune amplifier in excellent condition. 1.8 to 29.7 MHz. Full power with 2 - 3cx8007 tubes.
Latest firmware updates. $3300. Comes with original shipping carton and manual. From nonsmoking environment. Can be picked up in Inverness Florida, or shipped in the Continental US. If payment is made, we can also deliver it to the Orlando Hamcation in February.


Listing #1751968 - Submitted on 12/06/25 by Callsign AD4LE, Modified on 01/21/26 - IP: fl-67-232-190-66.dhcp.embarqhsd.net
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 WTT: Icom 7610
I know this is a long shot but, I am looking to trade a late model Icom 7610 for a late model Mercury 3s amplifier, factory built no kits or kit built. Radio is in very good condition. Comes with box,mic,manual cord ect...

Listing #1756437 - Submitted on 01/21/26 by Callsign K9CEG - IP: syn-075-128-224-143.res.spectrum.com
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 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 01/21/26 - IP: syn-071-085-210-083.res.spectrum.com
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 Elecraft KPA500 500W Linear Amp # 3480  
Elecraft KPA500 Linear Amplifier # 3480
$2399 delivered - check, Zelle, PP FF ok.
Set up for 110v,and comes with 110v power cord.
Easy for you to change to 220v if you want.
This amp is $3400 plus tax and shipping if you buy a new one.
Get the same results here for much less.
Manual and power cord.
Top has scuffs and small scratches on it as seen in pic.
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 #1755827 - Submitted on 01/14/26 by Callsign K6RO, Modified on 01/21/26, Web Site: http://www.K6RO.com - IP: 206.171.78.79
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  SB-200 6 METER CONVERSION AMPLIFIER  
2
AD WILL DELETE WHEN SOLD
EMAIL ONLY VIA QTH
350-500 watt output depending on input
PICK UP ONLY IN TAMPA -
I would consider driving 1/2 way, up to 20 miles, to meet
$375 OBO - PAY NOW PICK UP DURING HAMCATION
Cosmetics are ok but far from perfect
Needs risers and will include a new set of 4 risers & feet


Listing #1756330 - Submitted on 01/20/26 by Callsign K4WSB, Modified on 01/21/26 - IP: 47-199-239-188.fdr01.tmtr.fl.ip.frontiernet.net
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 Ameritron ALS-600 (160m-10m)  
This listing includes:
- Ameritron ALS-600 (newer version)
- Ameritron ALS-600SPS power supply
- Ameritron ARI-500 Band Decoder
- Cables for decoder to amp connection (network cables)
The amp is the newer model and has the 10/12-meter add-on board installed. It also comes with the ARI-500 band decoder. All working as it should and producing the expected output. With the band decoder you don't need to manually switch bands on the amp. I have a nicely printed copy of the manual (not the original) for the amp and the original manual for the ARI-500.
I'm asking $1,200 for everything. Shipping is at the buyer's expense.
I'd also consider a trade for a Yaesu FTDX-10 in like new condition.
I prefer local pickup in the Clearwater Florida area as this would be heavy/expensive to ship.


Listing #1756383 - Submitted on 01/20/26 by Callsign N4WHT, Modified on 01/21/26 - IP: syn-035-140-113-054.res.spectrum.com
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 Nye Viking Rf Power Monitor watt meter  
Nye Viking Rf Power Monitor works as it should it comes with a 5000 watt coupler and power supply Accurate... "auto calculating" SWR meter... supports multiple couplers... autoranging Average... Peak... or Peak Hold readings with selectable hold time. Amplifier lock out if certain parameters (reflected power or SWR) exceeded. Lighted dual meters. $325 shipped i accept check or a money order from the us post office. i dont have PayPal or Venmo Thanks 73

Listing #1756232 - Submitted on 01/19/26 by Callsign W4LLR, Modified on 01/21/26 - IP: h12.234.23.98.dynamic.ip.windstream.net
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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 01/21/26, Web Site: https://www.ni4l.com - IP: 172.58.54.245
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