QTH.COM Ham Radio Classified Ads: AMPHF - Swap amateur radio HF VHF equipment buy sell trade on line

For Sale: Beautiful Alpha 78: Alpha 78 amplifier in excellent working condition. This unit has been well cared for, runs strong, and the meters, controls, and illumination are all functioning properly. A solid, high-power classic for anyone who wants serious performance on HF. Has always been in non-smoking environment.
Price: $1800
Local pickup in Seattle area preferred; shipping available at buyer’s expense.
⸻; Listing #1749330 - Submitted on 11/12/25 by Callsign N4HCW - IP: oxfo-bb3-occam5-ws-46.dsl.maqs.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ACOM 2000P Commercial Amp Tech Special: 4 sale is a new 2000P hf commercial amp with controller,
Original box and packing. There is minor shipping
Damage, tubes are ok. This is an $8000.00 amp when new
Yours for $4000.00 shipped anywhere in the usa. Delivery
Possible to New England or nw Pa area. Qrz profile
Has good email for contact, KA2PTE; Listing #1749324 - Submitted on 11/12/25 by Callsign KA2PTE - IP: 35.sub-174-203-134.myvzw.com; Click to Contact -- Send this Ad to a Friend
FOR SALE: ACOM 700S: Very little use. Original boxes and Instructions. Wired for 120 now. Pick up in Milwaukee, WI area for $2150 or add shipping if out of area.; Listing #1749039 - Submitted on 11/09/25 by Callsign WA9BZW, Modified on 11/12/25 - IP: syn-070-092-141-119.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Display Unit for Elecraft's KPA500: Digital 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:

Easy to read 2 line display
No USB or serial cable to computer
No com port in Windows to manage
No computer needed
Plug and Play
Simply connect the supplied DC power cable to power supply and PC data jumper cable to the KPA500
Retains all functions of the KPA500 front panel
All displayed info obtained directly from the KPA500

Displays are being retired soon.

Newest Hardware and Software. $199 plus $10 shipping.; Listing #1748967 - Submitted on 11/09/25 by Callsign KV5J, Modified on 11/12/25, Web Site: http://www.kv5j.com - IP: mobile-107-77-201-112.mobile.att.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: 2 x 3cpx1500A7 amplifier: Testing the waters and thinking its time for another project. I home brewed this amplifier in the winter of 2024. Everything was bought brand new from the plate transformer to the tube sockets except for the pulse rated tubes that were professionally tested and found to be 100% emission. Details below
10-80 meter
4800VDC Idle Plate voltage
2A CCS transformer
Dual wafer Multi-Tech inc. Mod 86 Band switch silver plated
3 speed blower
Oil capacitor
new socket w/ Teflon chimneys
Jennings Vacuum variables
Legal limit with < 20w input.
LOW hours tubes and LOW grid current.
I have plenty of videos and pictures available during and after the build process. This is an ALPHA 77 SX on steroids. Asking $6,000 cash, would consider partial trade ins on high end HF transceivers and amplifier. Serious inquirers can contact me via email, phone or text. This is pickup only, I could also meet buyer within reasonable distance.
Thanks and 73's; Listing #1749310 - Submitted on 11/12/25 by Callsign W4EKY - IP: 136.226.3.72; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE: KM3KM Mercury IIIS and ATS: More pictures on request. I am moving over to a FlexRadio Power Genius so this gently used Mercury IIIs and unopened ATS is up for sale. See photo for all the details. I will be at Fort Wayne this weekend if you are in the region and want to forego the shipping risks. for shipping, I will get you and exact, insured quote from the carrier of your choice. The shipping cost is your responsibility.; Listing #1749299 - Submitted on 11/12/25 by Callsign N8XS, Web Site: https://www.qrz.com/db/N8XS - IP: nw1-dsl-72-49-175-152.fuse.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Elecraft KPA1500 amplifier: I have for sale my Elecraft KPA1500 amplifier. I bought it along with my K4D but have not used the kpa1500 because I do not have 220v in the shack. The amp and radio was purchased from an elderly ham and he used the set only occasionally. I am happy with my Mercury Lux and Lite amps so going to sell the KPA1500. The amp comes with all original packaging items and cables.
Price is $5100.; Listing #1744157 - Submitted on 09/25/25 by Callsign K2ZZ, Modified on 11/12/25 - IP: 104.28.204.176; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Henry 2K HF Amplifier For Sale: Henry 2K HF Amplifier For Sale:
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The Henry 2K is a monster HF amplifier,
covering 80 thru 10 meters.
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It uses a pair of Eimac 3-500 Z tubes,
to easily produce full legal limit (1500
Watts) with about 100 watts drive.
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It is a single stage amplifier designed
for SSB, CW, FSK and AM operation. It is
a very, very rugged, heavy duty amplifier,
with an extremely rugged power supply,
with a huge power transformer, choke input
filter, and oil filled filter caps. At over
150 pounds this amplifier is "built like a
tank".
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Of course all of this is in a very nice floor
console, with the power supply in the bottom
portion, and the RF portion in the top.
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This one works like it should. With full
power out of the exciter, it produces
1650 watts into a dummy load.
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Cosmetically it is very close to perfect.
I can not find a scratch or defect on it.
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Buy it with manual for $1200.
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Since it is 150 lbs, it is obviously
pick up only, near Ocala, FL.
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Thanks. 73,
Ken Simpson, W8EK
352-732-8400
.; Listing #1749287 - Submitted on 11/12/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE AMPLIFERS HF: Alpha 77SX mint condition with box 5500.00
Alpha 77DX mint condition 4500.00
Alpha 76A pair 3cx800 tubes converted by Dick Byrd mint 1900.00
2 Alpha 374A pair 3cx800 tubes converted by Dick Byrd mint 1900.00
Emtron DX-2SP 4cx2500 tube excellent condition 2700.00
Drake L4B with PS4 like new in factory boxes has very little use since new.1000.00
Commander 2500 Export 3CPX 800 tubes. 1600.00
Astron RS 35A and RS 20A power supplies good condition 100.00 for both.; Listing #1749222 - Submitted on 11/11/25 by Callsign K4TXL - IP: dhcp-67-147-93-93.gobrightspeed.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
For sale SB-220 panel switches meter: I have the 4 front panel switches and pot for sale. The multi meter has sold. Let me know what you need. Thanks Mike; Listing #1748284 - Submitted on 11/02/25 by Callsign WB8PFZ, Modified on 11/11/25 - IP: ip70-187-79-184.cl.ri.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend