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HF Amplifiers

Displaying ads 1 to 10 of 206 ads in this category.
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KA9FOX Wishlist on Amazon.com

 WANTED : Solid state Amp
Looking for, Yaesu quadra, Ameritron 1306/1406, Tokyo hypower 2.5kfx 2500, expert sbe 1.5 or 2k, or rfkit 2kfs.
I live on Eastern Shore of Maryland. Will drive reasonable distance.


Listing #1756182 - Submitted on 01/18/26 by Callsign WG3U - IP: 173-18-252-241.client.mchsi.com
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 FOR SALE: Alpha 9500
This is a beautiful amp. A single 3CX1500A7 8877 high-power triode is what powers this amp. I have the original book and shipping box. It is wired for 220V and ready to go. Selling because I bought a smaller LDMOS amp that's easier to move around. It weighs 95 lbs. with the transformer installed. Amp works great. It would be best to have local pickup so you can see it in action, or I can meet within 150 miles of Little Rock, Arkansas. Asking $3,300 cash or PayPal, plus shipping and insurance. Really hesitant to ship because of the weight and cost. Contact John N5TKG at 501-944-8585. Key Features: fully automatic, legal limit plus headroom amplifier. Alpha’s low-drive, tube amplifier design delivers the cleanest possible signal. Operates on all Amateur Radio Bands 160M through 10M, Single, easy to find, inexpensive 3CX1500A7 8877 type tube. Internal, automatic 4-port antenna switch capable of combining any 2 antenna ports

Listing #1756173 - Submitted on 01/18/26 by Callsign N5TKG - IP: 64.127.132.215
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 WANTED; Kenwood TL-922A Transformer
Looking for the High Voltage Transformer, T-1, to repair a Kenwood TL-922A HF Amplifier. Thanks, Al, W4TUK

Listing #1755011 - Submitted on 01/07/26 by Callsign W4TUK, Modified on 01/18/26 - IP: syn-070-127-100-242.res.spectrum.com
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 Ameritron als-600 and als-600ps  
good condition, full power out, newer model, $975.


Listing #1752462 - Submitted on 12/11/25 by Callsign W9LQT, Modified on 01/18/26 - IP: c-67-184-88-38.hsd1.il.comcast.net
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 Want: Elad Duo-Art 120 HF Amplifier  
Looking for a used ELAD Duo-Art HF amplifier.
Email info and availability.
NOTE: { I will not respond to any email offers not sent officially through this website.}
Too many scammers.....
Thanks.


Listing #1756074 - Submitted on 01/17/26 by Callsign N4PAL, Modified on 01/18/26 - IP: 143.59.233.189
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 QRO-2000 w/ New Penta tubes  
QRO-2000 in perfect condition. New Penta 3-500z 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.

Listing #1756131 - Submitted on 01/18/26 by Callsign W4EKY - IP: 170.85.92.202
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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 plus $10 shipping.

Last one this batch.


Listing #1755353 - Submitted on 01/10/26 by Callsign KV5J, Modified on 01/18/26, Web Site: http://www.kv5j.com/store/product/digital-display-for-elecrafts-kpa500-amplifier - IP: customer.mmmiflx1.pop.starlinkisp.net
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 FS: ACOM 2000A amp $3000  
This is a great full power HF AMP. I had it connected to my TS-890s also for sale and a VHQ hexbeam. I need the room now. It is resting in a box. It is heavy. The power supply can be separated to make it easier to transport. Local Pickup or you ship. I will only accept initial contacts via this board.

Listing #1756125 - Submitted on 01/18/26 by Callsign K5DAV - IP: syn-184-092-108-242.res.spectrum.com
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 Full so2r setup and much more  
For sale Full flex radio so2r setup and more. Located in southern NJ prefer local ny,pa,nj,md,de area. The flex items do not have the original boxes but the 8600 does. Cash preferred but other payments accepted as well.
Full flex radio setup $15,400 willing to take $15,000 if you take all
Flex PGxl - $5300
Flex tgxl - $2000
Flex 8600 - $4400
Flex 6400 - $1500
Flex maestro - $1400
flex 8x2 - $800
Yaesu ftdx10 - $1100 - original box
Mercury iiis - $2600 - original box and outter box
Icom Ic-7300 - $750 No box
Step ir urban beam - Make Offer Fully working at time of disasembly in the summer.


Listing #1756123 - Submitted on 01/18/26 by Callsign KC3KXR - IP: c-69-244-96-154.hsd1.nj.comcast.net
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 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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$150.00 Shipped
Paypal, Zelle, USPS M/O
Tnx, Chris-WD8EEQ


Listing #1755947 - Submitted on 01/16/26 by Callsign WD8EEQ, Modified on 01/18/26 - IP: c-73-161-60-200.hsd1.mi.comcast.net
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