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HF Amplifiers

Displaying ads 161 to 170 of 237 ads in this category.
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 RM -ITALY HLA-305V **AS NEW**  
I have for sale a nice month's old QRP Amplifier for sale. I'm the original owner. Plans changed no longer own QRPO type Radio's. Original price was 859.00 plus tax. I'm selling for 650.00 shipped to your door insured. If serious more pics available. I have all original packing. If purchased, you must sing for it and have a verifiable address.
Thanks for looking!250 watts out by the way.


Listing #1744426 - Submitted on 09/27/25 by Callsign KK5NO - IP: 104.151.195.234
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 WTB: Broken amplifiers
Looking to buy broken amplifiers such as Ameritron, Henry, Drake, Heathkit, QRO, Alpha. Please send pictures and prices to email or text.
Thanks and 73's
Chase
Bluegrass Amp Repair services.


Listing #1744375 - Submitted on 09/27/25 by Callsign W4EKY - IP: 136.226.3.84
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 RM ITALY HLA-305V Amplifier  
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1.8 to 30 MHz - 15 Watts in and 250 Watts out, with 2 cooling fans. Manual or Auto band switching - Great reviews.
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$595 plus shipping $45
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Note - for more of my items - put call in SEARCH and click SEARCH
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Payment via ZELLE, M.O. or personal check when clears
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Thank you,
Tom Stack - WQ5J -
tom.stack73 at yahoo.com
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Listing #1744240 - Submitted on 09/25/25 by Callsign WQ5J - IP: 104-53-68-31.lightspeed.rcsntx.sbcglobal.net
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 SD2942 500W Mosfets Matched Set
This is a matched set of ST Model SD2942 500W Power MOSFETS that were pulled from a working 1KW transmitter. They are tested and working and in excellent condition. Great amplifier set for HF through 250 Mhz. The normal sales price is just over $100 each. You can buy this set for $150 per set. I do have about 15 sets of these available. Contact Jeff AK6OK at 916-205-2200 with questions or, email ak6ok at arrl.net. Payment via Paypal is fine.

Listing #1744164 - Submitted on 09/25/25 by Callsign AK6OK - IP: 172.92.17.82
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  YASEU 2500 legal limit with 10 meters
Legal limit 80 through 10 meters. Perfect on all bands and I put my upgrade signature on it. I even peeled off the original front panel plastic. This is a rare amp and delivers a near KW on all bands including 10 meters.
I performed all tests and invite any and all to come pick it up in Placerville Ca.
I am asking 950.00 pick up and see it on the air all bands, or if I have to ship it we will send it FED X only and buyer to pay FED X pack and ship costs, so hopefully there is a buyer that can come to the qth and enjoy the showroom quality of this very rare yaseu amp.
it belongs is a museum.
Rich ka6nbc 916 765 5811


Listing #1744119 - Submitted on 09/24/25 by Callsign KA6NBC - IP: 12.74.99.0
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 p/s
need used ameritron ps600 power supply . not solid state i have an older one .was dropped.

Listing #1744029 - Submitted on 09/24/25 by Callsign KJ4RB - IP: syn-071-077-243-158.res.spectrum.com
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 Ameritron AL-572 Southern Californa  
** Still looking for local buyer **
I have an Ameritron AL-572 amplifier (serial number 11473) for sale. This amplifier has been my backup for the past 10 years or so; it has been used very infrequently. I tested it briefly and it was putting out 1000 watts on 20 meter CW with about 70 watts of drive. It is in good physical condition. It is working but due to its age I am selling it “as is”. It is currently wired for 220v AC but can be rewired to 120V as an option.
I don't want to ship the amplifier and am offering it for local sale for $1000. If I cannot find a local buyer I will be forced to consider shipping the amp. I have the original box.
(No the K3 and wattmeter in the picture are not included :-) )


Listing #1743260 - Submitted on 09/15/25 by Callsign K6NR, Modified on 09/22/25 - IP: ip68-4-255-171.oc.oc.cox.net
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 Acom 1000 HF/6m amplifier—$2000  
Mint Acom 1000 hf/6m amplifier with original box..Local pickup Only—-will not ship….still hooked up and you can operate it before you buy it if you wish. Can deliver if your close.. $2000…

Listing #1743879 - Submitted on 09/22/25 by Callsign N1RES - IP: pool-173-48-32-11.bstnma.fios.verizon.net
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 Heathkit SB-220  
Very nice SB-220. loaded with the following Harbach kits cleanly installed. I think every kit they sold acually.
SK-220 soft Key interface. protects your modern transmitters TX relay
BKR-220 New manufactured direct replacement circuit breakers
FB-220 New heavy duty filter bank, these are the nice big mallory units
SS-221 Soft start relay, dampens the load on filter caps and filaments
FM-220 Hi output fan and motor kit.
RM-220 Rectifier and metering board. Far superior than original board layout and part list.
Also the measures parasitic suppressor kit is installed.
Eimac tubes putting out close to legal limit output and all bands have good input SWR on the tuned input. This amp has been VERY well cared for and all kits are VERY cleanly installed. Faceplate is blemish free and case paint is in very good condition as well.
A solid amp that's been updated, will make its new owner a very dependable piece of gear.
$1300 pickup in Western KY preferred
Text also preffered


Listing #1743717 - Submitted on 09/20/25 by Callsign KI4THX - IP: syn-065-186-012-237.res.spectrum.com
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 Very nice Alpha 87A   
Very nice Alpha 87A linear amplifier, exceptionally clean and delivers full power++ as shown in the picture. Wired for 240V operation. Includes the original operational manual.
• 1.5 kW continuous RF output
• Covers 1.8 – 29.7 MHz (all common amateur bands)
• Auto-tune with microprocessor-controlled band changes
• Full CW break-in and digital mode capable when paired with a compatible transceiver
• Reliable, high-performance, clean signal output
$3,300
Local pickup only or will meet within distance. Will not ship due to weight.


Listing #1743590 - Submitted on 09/19/25 by Callsign K6AEM - IP: 157-131-206-248.fiber.dynamic.sonic.net
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