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

Heathkit HF Amplifier w 2X3-500 Tubes: One used Heathkit H.F. Amplifier, the SB220 using two of the 3-500 tubes
currently wired for 120VAC and can be change easily to 220 VAC. Keying
was modified for low voltage keying. For sale at $915.00 plus shipping.
Preferred local pickup in Southern California. I am good on QTH call sign lookup
as W6BBA and address is current. If local pickup with cash, I will include Free,
the Heathkit Power/SWR meter shown in the picture!, that is worth $150! A
bargain, so I don't have to ship it! Thanks for looking at my ads. 73's; Listing #1758132 - Submitted on 02/06/26 by Callsign W6BBA - IP: 104-11-235-174.lightspeed.irvnca.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Amp Supply LK550 (3) 3-500Z amp: Selling my amp supply LK550.. 160-10M keeps blowing one of the fuses with all the tubes out sold as is. Peter Dahl plate and filament transformer. 2 out of the 3 eimacs are ok and included with the sake. I will not ship but will meet in Massachusetts to deliver. Email me for pics . This is a 2 piece unit.. $1500; Listing #1758122 - Submitted on 02/06/26 by Callsign W1CJF - IP: 151.240.45.96; Click to Contact -- Send this Ad to a Friend
keying module two amps /replacesARB704: $80.00 plus shipping Paypal Zelle
will key older high voltage/modern low voltage amplifiers this is a low input ptt one transceiver to two amplifiers will key two modern or older amps no cable swamping. safe full isolation PTT optocoupler 100% electrical isolation from your modern radio. 12vdc operation has standby switch. comes with power pigtail. will work great in line with your Ameritron ARB704 RCA jumper from ARB704 to the RK102 now you equipment is safe and isolated. you can mix and mach old and new amplifies; Listing #1758093 - Submitted on 02/06/26 by Callsign KJ6VRC, Web Site: https://www.qrz.com/db/KJ6VRC - IP: customer.snjecax1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
SPE Expert 1.5K: Selling my Expert 1.5K It works very nicely. 10 will get you 500, 20 about a 1k, and 28 about 1.4ish. It has a very nice tuner built good for about 5:1. The antenna switching can handle 4 antennas and two radios, along with a receive antenna. I'm sure you know what they look like, but feel free to email for pics. I will not respond to anyone who doesn't include their valid call on the email.
Asking $4400 shipped.
Thanks, 73
Tony N7ZS; Listing #1758017 - Submitted on 02/05/26 by Callsign N7ZS, Modified on 02/05/26 - IP: 104-181-75-17.lightspeed.renonv.sbcglobal.net; Click to Contact -- Send this Ad to a Friend
FOR SALE: Parts from a SB220 6m convers: Parts salvaged from a Heath SB 220 6 meter conversion. Contact me for prices. PayPal friend to friend, check or cash. If ad is up the parts or some of the parts are still available.
The variable cap, both sockets, both door knobs, and all knobs have been sold.; Listing #1757847 - Submitted on 02/03/26 by Callsign VA5DX, Modified on 02/05/26 - IP: 45.42.128.159; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: New MACOM MRF 422 matched: New MACOM MRF 422 matched transistors. ASI MRF422 is Designed for 2.0 MHz to 30 MHz, 28 V High Power Linear Amplifier Applications. RF422MP Asking $150 each pair plus shipping. https://www.kynix.com/Detail/1314417/MRF422.html?gclid=Cj0KCQiAvqGcBhCJARIsAFQ5ke5OgDTFiJ3lDEfE-Z-FNAziV4EX7aPa5olk-Klx5rSqwE_LADKsBagaAqa3EALw_wcB; Listing #1757951 - Submitted on 02/05/26 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
Need help with THP -1.5 KFX not keying: My THP AMP stopped keying with my IC7800. The amp tracks band changes, fan working, no fault LED’s on, cables connected not loose. Could the issue be an internal fuse, bad transistor on relay/PA board. Problem started suddenly.
Does anyone know a ham who works on these THP amps? I live near Philadelphia.
Any advice would bee greatly appreciated. Thanks
Bob
K3SRO; Listing #1757751 - Submitted on 02/03/26 by Callsign K3SRO - IP: pool-108-16-253-90.phlapa.fios.verizon.net; Click to Contact -- Send this Ad to a Friend
FOR SALE Ameritron 811 H w/ manual & cor: I am offering for sale a ameritron 811H
Very low hours, no pets, no smoke. Works as it should. No scratches or dents. Will not ship but will meet you part way. I live in the Houston area. I will send pictures by text to your phone if you want. Asking $800.00 cash or postal money order. You can reach me at 281 630 3938 any time after 12:00 noon. Thanks Gene; Listing #1757717 - Submitted on 02/02/26 by Callsign N5ROE - IP: 47.221.93.212; Click to Contact -- Send this Ad to a Friend
Alpha 76A 2-tube $800: Alpha 76A 2x8874 amp available at Orlando Hamcation.
Cosmetically very clean. Has the low-drive mod. Should be good for 1kw or slightly less. Wired for 220v. Note - input connector is RCA connector rather than a more conventional SO239. This was common to ETO/Alpha amps of this vintage and can be changed, or you can use an adapter. Serial #6742.
$800
Pickup available at Orlando Hamcation. Will be at the FCG flea market tables. Contact me for details or with questions.; Listing #1757696 - Submitted on 02/02/26 by Callsign W4WF - IP: 108.240.195.85; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Icom IC-PW1 Amplifier: This is from my father's estate. This is is main station amplifier and was in use when I disconnected everything. Asking $1750 plus shipping and boxing. I will drop off at Fedex or UPS, have them box, insure, and ship at buyers expense. Willing to travel a reasonable distance from south west Michigan to meet up. SN #1200. I have not tested this myself, I have been out of the hobby for 25+ years, but this has been in service up to me disconnecting the station. Smoke Free Home. Please email if interested.; Listing #1757670 - Submitted on 02/02/26 by Callsign N8UGD - IP: 45-26-131-187.lightspeed.gdrpmi.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend