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

Henry SS-750 Mobile HF Amplifier: Nice Henry SS-750 13.8V DC HF amplifier with remote. I mainly used this on 75 meters. Easily puts out 750 plus watts with 100 watts drive. This one is built the best of the few I have owned. $1700 shipped FedEx. Zelle or PayPal.; Listing #1757417 - Submitted on 01/31/26 by Callsign WB1AFK, Modified on 02/01/26 - IP: mobile-107-77-225-142.mobile.att.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
WTB: Heathkit SB230 parts: I have a good stock SB230 amp and a good 8873 tube but lack
The plate clamp, the base clamp and the pressure bar
Assembly for the tube. Anyone have any leftover parts from their
Russian tube conversion or a parts SB230?
Thanks Best 73 Dave; Listing #1750531 - Submitted on 11/23/25 by Callsign W7NO, Modified on 01/31/26 - IP: 72.172.78.158; Click to Contact -- Send this Ad to a Friend
Flex Radio Power Genius XL Price Reduced: Mint Flex Power Genius amplifier in MINT condition ! Full output of 220v, about half power on 120V. Little use, no digital mode use. Comes with original box, 220V power cable and 2 120V power cables. This one's a real winner! $4350 plus actual shipping cost. I prefer Zelle or MO. PayPal plus 3.5%.; Listing #1756521 - Submitted on 01/22/26 by Callsign KK8ZZ, Modified on 01/31/26 - IP: ec2-3-143-144-21.us-east-2.compute.amazonaws.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Heathkit sb220 lots of mods.: Vacuum relay. Circuit grounded. Was told it has the Peter Dahl transformer and Amperex tubes. 40w in got me legal limit. Im going solid state. 2k FIRM. NO TRADES. Will ship on your dime. I will box it to save you some money. If you want to send pirate shipping label, I will accommodate or ship ups. No returns due to parts swapping. This thing already has the mods you want! Small white stuff on knobs will 100% come off. 25811 WV. If using paypal, buyer is responsible for fee.; Listing #1757482 - Submitted on 01/31/26 by Callsign W8LDX - IP: 50.26.159.129; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
: FS: Hygain BI-Linear Amp 600: Nice HF RF amp deck works as it should. Many pics of inside as well just ask. I don't have a PS. 600 watts asking $300 plus shipping.; Listing #1757471 - Submitted on 01/31/26 by Callsign W1JCW - IP: 23-92-13-217.wirestar.net.wirestar.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: HAM LAMP WITH EIMAC 304TL TUBE: For Sale: Nice Ham Radio Lamp on walnut base. See photo.
Great addition to your Shack!!
Comes with High Power tube 304TL; see photo for example.
But it shows Leakage with 1kV test.
Comes with a new black fabric shade. Shade is proper size for the tube.
The wood base is also new and finished with 2 coats of Spar Varnish.
It has been accurately drilled for the Jumbo 4 pin tubes like this one.
The base has felt pads to protect equipment and tables.
New Lamp socket is standard Edison base with new LED bulb.
Will include a laminated label with your Callsign for the base, if you like.
Email me for more photos.
$55.00 plus $13.00 shipping in the CONUS.
If you do not need the tube, you can have the rest for $44.00 shipped.
(I will do the Base for the 304 type or the EIMAC 3-500/4-400 5 pin Jumbo.)
Will be well protected.
USPS MO, your check or PayPal to: jtg4300 at yahoo.com
See my Feedback & other ads for Drake, Ungar, Simpson, Scope Probe & other gear.; Listing #1748760 - Submitted on 11/07/25 by Callsign WA1BRI, Modified on 01/31/26 - IP: 47-199-174-249.fdr01.stgr.fl.ip.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
alpha 87a amp wtb: looking for alpha 87a amp without tubes amp must work 100 percent; Listing #1757442 - Submitted on 01/31/26 by Callsign WR4F - IP: 46.110.132.26; Click to Contact -- Send this Ad to a Friend
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. $169 plus $10 shipping.

Last one this batch.; Listing #1756522 - Submitted on 01/22/26 by Callsign KV5J, Modified on 01/31/26, Web Site: http://www.kv5j.com/store/product/digital-display-for-elecrafts-kpa500-amplifier - IP: customer.mmmiflx1.pop.starlinkisp.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Flex PGXL Legal Limit Amp: I have a PGXL for sale.
It is in excellent shape and works 100%.
It has a few minor scratches but you really have to look hard to see them.
Amplifier Feature Highlights:
1.8–54 MHz coverage
Full legal power 1500W (100% duty cycle ICAS), in all modes, up to 2000W
First ever MEffA™ system (Maximum Efficiency Algorithm) control efficiency as a function of output power
Fully SO2R capable — 70dB nominal isolation between exciter inputs
Smart control of cooling — real-time settings of drain voltage, drive and fan speed for best thermal performance
Exceptional spurious performance owing to diplexed filters for carrier and harmonics
Ultrafast SWR protection
Remote control with desktop application in LAN or WAN networks
CAT, Band decoder, LAN interface for operation with other exciters
Shipping info: 24″ x 12″x 19″ 45 lbs
This sale includes the amp, power cord and Original double shipping boxes.
Price is $4650.00 shipped; Listing #1757385 - Submitted on 01/30/26 by Callsign W5IB, Modified on 01/31/26 - IP: customer.dllstxx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FL2000B: A working 1KW amp. $800 Buyer arranges local pickup or shipping.; Listing #1757391 - Submitted on 01/30/26 by Callsign K5DKZ - IP: syn-076-183-146-186.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend