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

Eimac 4CX1500B MINT!!: This is a genuine Eimac milspec 4CX1500B, with original box, still in its shrink wrap. This is the tube for Alpha 8410, 8406, etc. Alpha charges $1700 for these, and I’ve seen them priced much higher. You won’t find a better tube in better condition than this one.
$1250 or best offer. Ships WW.; Listing #1741851 - Submitted on 09/02/25 by Callsign K1FIE - IP: mobile-166-198-034-039.mycingular.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
eimac 3cpx800 A7 pair: these tubes were in my Bird modded 76A. were tested by Dick at full output when i had the amp with him for some tune up work. this amp was never driven more than 600W out. i pulled these tubes and replaced them with a new set to keep these as a backup pair. the amp has been sold and these tubes are sitting here on the bench. they need a good home. $800 for the pair delivered.; Listing #1741748 - Submitted on 09/02/25 by Callsign W0TRD - IP: 173-18-58-121.client.mchsi.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
want 8874: Look for used working 8874.; Listing #1741722 - Submitted on 09/01/25 by Callsign WA5RS - IP: 99-85-12-245.lightspeed.nworla.sbcglobal.net; Click to Contact -- Send this Ad to a Friend
NOS 1L6 Tubes (Zenith Transoceanic): Hard to find pair of 1L6 tubes for the older Zenith Transoceanic radios.
Both are NOS/unused and test accordingly.
See photo.
$64 for the pair includes shipping & tracking.
*Payment via USPS "Postal" m/o*; Listing #1740503 - Submitted on 08/21/25 by Callsign KJ6NKX, Modified on 08/31/25 - IP: syn-174-083-251-235.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
EIMAC 4CX300A 8167 NOS: This tube was taken out of storage and was wrapped in original protective bag. It has not been tested but there is no reason to think it isn’t still as new. $25 shipped. I take Paypal, PMO and check; Listing #1738225 - Submitted on 08/02/25 by Callsign W6XI, Modified on 08/31/25 - IP: ip68-109-162-111.ph.ph.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
EIMAC 3CX800A7 CERAMIC TUBE: This tube was purchased as a backup for an amp and only used enough to see that it was good. It was sent for professional testing at D&C Electronics in Florida and exceeded new factory minimum specs. The tube is in like new condition and only shows markings on the Anode terminal that came from the testing. The testing results and photos are available on request. Serial No. JFDD3165. $699 shipped with insurance. I take Postal MO and certified check with clearing.; Listing #1738228 - Submitted on 08/02/25 by Callsign W6XI, Modified on 08/31/25 - IP: ip68-109-162-111.ph.ph.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
4CX1500B: 4CX1500B, original that came with my Alpha 8410. Sold the Alpha, solid stater amp. The other tube shorted out. Good emissions on my homebrew 6L6-4CX1000A adapter to Heathkit tube tester. $140 plus $17 USPS priority mail or best offer.; Listing #1741481 - Submitted on 08/30/25 by Callsign K3MD - IP: 70.44.117.128.res-cmts.snc.ptd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS:3CX1200D7: The ham that parted out the henry that I have a listing for has a very good tube he said. If u need a 3cx1200D7 let me know and I will get u his number.
Terry; Listing #1741345 - Submitted on 08/29/25 by Callsign K7NY - IP: c-24-20-68-132.hsd1.or.comcast.net; Click to Contact -- Send this Ad to a Friend
For Sale 2 Eimac 3CX800 A7's: I have 2 Eimac 3CX800A7's for sale. These tubes were replaced by 2 new tubes in a Commander 2500 amplifier. The power output was the same as the new tubes installed. They have been stored in a climate controlled room for a couple of years. No longer need them as spares. Price is
$ 835.00 shipped lower 48 only.
Payment by postal money order or personal check. Tubes will ship once check clears. Thanks, Dennis; Listing #1740416 - Submitted on 08/20/25 by Callsign K4NV, Modified on 08/25/25 - IP: syn-024-196-225-085.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
3-500Z tube: 3-500Z tube tested and has full output. No name visible. $125 plus shipping.; Listing #1740946 - Submitted on 08/25/25 by Callsign KB9SI - IP: 251.sub-75-223-76.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend