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

Wanted Technician: Wanted: a good technician to refurbish my Yaesu FL 2100F amplifier. Tubes have steadily lost power. 75 meters show about 350 watts, 40 meters about 150 watts and antenna is tuned with radio but when amp is on swr is around a 2. Help would be appreciated; Listing #1766512 - Submitted on 04/29/26 by Callsign W4TSR - IP: 152.42.30.214.mlec.com; Click to Contact -- Send this Ad to a Friend
wtb: hf AMP: Wanted to buy: HF amplifier from seller located in Minnesota. Will pick up.; Listing #1766192 - Submitted on 04/26/26 by Callsign KB0SNE, Modified on 04/29/26 - IP: 208.83.204.97; Click to Contact -- Send this Ad to a Friend
WTB : HF Amp: Wanted to buy : HF amp from Minnesota seller so I can avoid shipping costs.; Listing #1766432 - Submitted on 04/29/26 by Callsign KB0SNE - IP: 208.83.204.97; Click to Contact -- Send this Ad to a Friend
Alpha 9500: This is a legendary Alpha 9500 HF amplifier. It exceeds legal limit on all bands. Has some cosmetic blemishes per the photo, but I was getting peaks of 1800W, 2100W and 2600W out during the course of my testing (see photos). As Han Solo once said to Obi Wan, “She’s fast enough for you, old man.” Unit will be shipped UPS insured in two double boxes (original Alpha packaging) with transformer removed, bolted to plywood, and surrounded in expandable foam.
The last 9500 to sell was earlier this month on EBay for close to 5K.
$3800 plus shipping.; Listing #1766425 - Submitted on 04/29/26 by Callsign K1FIE - IP: 12.47.128.137; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Wanted Cetron tubes one pair: I know this is a long shot but does anyone have a pair of Cetron tubes nos or full output for my Yaesu FL2100F? Thank you in advance!; Listing #1766419 - Submitted on 04/29/26 by Callsign W4TSR - IP: 152.42.30.214.mlec.com; Click to Contact -- Send this Ad to a Friend
FS Ten Tec Titan Owner's Manual: Ten Tec Titan Owner's Manual great shape complete, schematics and technical information.
$25 shipped CONUS (even on this shipping is expensive $6-7). If you have a less expensive way, let me know.
Paul W5NTQ; Listing #1766383 - Submitted on 04/28/26 by Callsign W5NTQ - IP: 99-25-95-175.lightspeed.hstntx.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Elecraft KPA1500 display with WiFi: KPA1500 RF Power Monitor

See everything your KPA1500 is doing — at a glance. This plug-and-play OLED display connects to your amplifier's RS-232 port and shows forward power, reflected power, dissipated power, input drive, SWR, PA voltage, PA current, and heat sink temperature in real time. No modifications. No drivers. Just plug in and go.

The crisp 256×64 OLED display uses a clean 3×2 grid with proportional bar graphs and large, easy-to-read numerals — designed with older eyes in mind. Peak power is held for instant readability.

Bonus WiFi web interface — monitor and fully control your KPA1500 from any browser on your network. Change bands, switch antennas, tune the ATU, toggle Operate/Standby, and clear faults remotely. Works great with Tailscale for shack access from anywhere.

Built on the XIAO ESP32C6 with browser-based OTA firmware updates.

$239.99 plus $10 shipping PP; Listing #1765489 - Submitted on 04/19/26 by Callsign KV5J, Modified on 04/28/26, Web Site: http://www.kv5j.com - IP: mobile-107-77-196-63.mobile.att.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Elecraft KPA500/KAT500 For Sale: Elecraft KPA 500 amp with KAT 500 Tuner for sale. $3000. Local sale preferred. Both work like new with no problems. Cables for K4 included. Manuals for both included. Selling to buy another amp. More photos available. Currently in use.; Listing #1766363 - Submitted on 04/28/26 by Callsign W4WU - IP: 97-75-150-90-dynamic.northstate.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
TenTec Centurion For Sale: TenTec Centurion 411 for sale. $1300. Very nice amp in excellent physical and working condition. Have black cover and original gray cover. Local sale preferred. Manuals included. No problems, just selling to buy solid state amp. PayPal OK. More photos available.; Listing #1766360 - Submitted on 04/28/26 by Callsign W4WU - IP: 97-75-150-90-dynamic.northstate.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Kenwood TL922 w/mods For Sale: TL922, not an A, for sale. $1300. Prefer local sale. Has all of Kessler mods installed, new Penta tubes, grounded grids, etc. Extensive documentation. Works and looks great. Selling to get solid state amp. Very low time with no problems. Not abused. PayPal OK. Can supply more photos if needed. Currently in use.; Listing #1766358 - Submitted on 04/28/26 by Callsign W4WU - IP: 97-75-150-90-dynamic.northstate.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend