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

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
4SALE. 4CX1000A Power Amp Tube: $$$$ LOWERED COST. $$$$$
I am selling one 4CX1000A tube that I had kept as a spare to my ACOM A1500 amplifier. I sold the amplifier about a year ago and no longer have a need for this spare. It performed very well in the ACOM1500 and was my backup tube. I am asking $350 shipped and insured to anywhere in the continental USA. I accept Personal Check or Postal Money Order.
Please contact me via eMail using this QTH.COM ad only.; Listing #1761607 - Submitted on 03/11/26 by Callsign K9AU, Modified on 03/13/26 - IP: 21-254-182-166.mobile.uscc.com; Click to Contact -- Click Here to View Picture -- 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
FS: Four 6ME6 6LQ6 6MJ6 Tubes: Four new 6ME6 Tubes Same as 6LQ6 and 6MJ6. Great for sweep tube amp $119 shipped to USA lower 48.; Listing #1761486 - Submitted on 03/10/26 by Callsign N8FVJ - IP: 71-214-106-17.orlf.qwest.net; Click to Contact -- Send this Ad to a Friend
FS: RCA 4X 57 & 3X 58 Tubes: All test strong. $15 + $5 shipping.; Listing #1761485 - Submitted on 03/10/26 by Callsign N8FVJ - IP: 71-214-106-17.orlf.qwest.net; Click to Contact -- Send this Ad to a Friend
8877/YU-158 Tube: This is an industrial grade 8877 tube for an Alpha 9500 and similar amps. The best (lowest grid current) tubes were pulled from the 8877 assembly line and rebranded YU-158 for the medical device market (and sold at a much higher price). This is an excellent tube tested in a 9500 and delivered full power out +. Comes with socket (which you can just pull off if you don’t need it).
Just $569 shipped CONUS.; Listing #1761474 - Submitted on 03/09/26 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
Eimac JAN 327-A UHF Transmitting Triode: This tube appears new and may be NOS and has been in storage since new. Original packing was lost however. $40 Shipped I take Paypal, Postal MO and check; Listing #1757804 - Submitted on 02/03/26 by Callsign W6XI, Modified on 03/09/26 - IP: ip68-109-162-111.ph.ph.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
For Sale: two (2) 4cx1000 tubes: From an estate. These tubes were used to power a Collins 30S-1 amplifier. I believe both to be good but have no way of testing. Selling for the widow of the deceased ham who has already sold the amplifier. They performed very well when installed but I believe they were pulled because the owner wanted "more power" and installed 4cx1500's, which were sold with the amplifier. Asking $525 shipped and insured to anywhere in the continental USA. Will accept personal check, postal money order or Paypal.; Listing #1761432 - Submitted on 03/09/26 by Callsign W8QW - IP: dyn-149.19.222.129.hrvl.mi.homeworksinternet.net; Click to Contact -- Send this Ad to a Friend
NEW OLD STOCK 4CX250 W SOCKETS/CHIMNEYS: I BOUGHT THESE YEARS AGO TO BUILD A 6 METER AMP BUT GOT A GOOD DEAL ON A KING CONVERSION. ALL PARTS ARE NEW BUT THE BOXES WERE LOST FOR TUBES AND CHIMNEYS. THIRD TUBE IS STILL IN ORIGINAL BOX. $450.00 SHIPPED WILL ACCEPT PayPal you pay fee or POSTAL MONEY ORDER.; Listing #1761359 - Submitted on 03/08/26 by Callsign WA1UWX - IP: c-73-143-252-6.hsd1.ma.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend