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

NOS / NIB RCA 12AX7/ECC83 & 6AK5/EF95: 12AX7's: 18 or them. $ 25 each
6AK5's: 20 of them. $12 each
Due to packaging, I prefer to package all or qtys of five. Contact me for this issue.
I can supply pictures of the boxed offerings if desired. I'm not going to unbox and rebox 40-vacuum tubes just to prove what I've listed. I'm NOT a scammer ! ! ! !
Dave - WØLEV; Listing #1762058 - Submitted on 03/15/26 by Callsign W0LEV - IP: customer.dnvrcox1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS - PentaLabs 572B tube: This is a spare 572B tube that was in storage. It’s a Pentalab tube, and ordered from PentaLabs two years ago. The tube has about 15 minutes of usage just to confirm operation. I’m asking $100 shipped, PayPal preferred.; Listing #1762055 - Submitted on 03/15/26 by Callsign WE9N - IP: 99-25-237-150.lightspeed.rcsntx.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Eimac 4x150a $25.00 shipped: Eimac 4x150a
I know nothing about it . It was included in a estate i bought .
$25.00 shipped; Listing #1754202 - Submitted on 12/30/25 by Callsign KG4WPW, Modified on 03/15/26 - IP: 70.sub-174-218-48.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Two new tube sets for Collin’s 516f-2: I have 2 brand new never used (tested only)
solid state replacement rectifiers for the
Collins 516f-2 power supply. These run very
Cool and will not get much warmer than your
body temperature. These are direct plug in with
no modifications needed.
Price for both new sets $75.00 shipped to your with.; Listing #1762003 - Submitted on 03/14/26 by Callsign N3QK - IP: 99-169-95-133.lightspeed.dybhfl.sbcglobal.net; Click to Contact -- Send this Ad to a Friend
Eimac 7580W / 4CX250R: Offering this from recent estate tube lot - cosmetics indicate either NOS or very, very low hours.
The 4CX250R/7580W is the heavy-duty, ruggedized version. Like the 4CX250B, it has 6.3v filament voltage. They ( “typically” ) deliver more output in most linear amplifiers which use the 4CX250B.
My TV-3B/U tube tester doesn’t cover this one, so it’s sold As-Is / No Return.
- Additional Pics on Request -
Yours for: $ 40.00 + $10.00 Ship (CONUS) from 92117 - 6x6x6 box - 1-2 lbs.
PayPal / USPS MO preferred - Check Accepted, but no ship until clears.; Listing #1760692 - Submitted on 03/02/26 by Callsign W6SDW, Modified on 03/14/26 - IP: syn-076-175-204-014.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
8877/YU-158 Tube: This is a full power out plus medical grade 8877 (Eimac cherry picked the units with the ones with the most grid current headroom), will be shipped and insured via UPS.
$599 shipped CONUS.; Listing #1761916 - Submitted on 03/14/26 by Callsign K1FIE - IP: c-50-189-24-238.unallocated.comcastbusiness.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
8874 Tubes: Tested for full power out, good cosmetic condition. $300 each shipped and insured CONUS.; Listing #1761915 - Submitted on 03/14/26 by Callsign K1FIE - IP: c-50-189-24-238.unallocated.comcastbusiness.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Econco Closing its doors: Get ready Microwave Power Products has announced that they will close Econco. May 1st is the last date to get a tube. Radio World has an article. Kennetron is the only rebuilder left?
73; Listing #1761846 - Submitted on 03/13/26 by Callsign W7GS - IP: c-68-56-222-190.hsd1.mi.comcast.net; Click to Contact -- Send this Ad to a Friend
Nice set of Taylor 3-500zg tubes: These tubes are used
They are still full output with little use
Writing still on the tubes
300 for the pair you pay shipping; Listing #1761716 - Submitted on 03/11/26 by Callsign KE5FAQ - IP: 146.12.250.247; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Want: 8875 Tube: Want 8875 tube.; Listing #1761602 - Submitted on 03/11/26 by Callsign N8FVJ - IP: 71-214-106-17.orlf.qwest.net; Click to Contact -- Send this Ad to a Friend