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

Many tubes transmitting and Miniatures: I am selling loads of vacuum tubes, both transmitting and miniatures and in between. Some new in box and others not. None have been tested. Examine the photos to see what you are buying. No picking or choosing. Buyer takes all! The tubes are some many ham estates that my late husband (WK9Q) bought over the years. $1,000.00 takes all. Local pick only. More photos available upon request.; Listing #1762684 - Submitted on 03/21/26 by Callsign VIRGINIALAWTON414-418-0116 - IP: syn-174-097-148-036.res.spectrum.com; Click to Contact -- Click Here to View Picture -- 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 -
Price (Reduced) to $ 30.00 + $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 03/21/26 - IP: syn-076-175-204-014.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Raytheon RK-4D32 ( NOS ): Need Spares / Replacements for your vintage Collins 32V / Hallicrafters or Johnson Xmtrs ??
Have 2 in their original, factory sealed boxes - Will Ship “ Box-in-Box ”. AS-IS, No Returns…
Price: $35.00 EACH Shipped ( CONUS ) from 92117
PayPal / USPS MO preferred - Check OK but no ship until cleared.; Listing #1762171 - Submitted on 03/16/26 by Callsign W6SDW, Modified on 03/21/26 - IP: syn-076-175-204-014.res.spectrum.com; 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 who has already sold the amplifier with a 4cx1500 installed. These tubes were for the choice of the 4cx1500. Asking $325 or best offer, shipped and insured to lower 48. I can accept cash, personal check (must wait for check to clear), postal money order or Paypal (not Friends and Family). Sale is final, no returns.; Listing #1761432 - Submitted on 03/09/26 by Callsign W8QW, Modified on 03/20/26 - IP: dyn-149.19.222.129.hrvl.mi.homeworksinternet.net; Click to Contact -- Send this Ad to a Friend
Transmitting tubes: I have a surplus of new 811a tubes, a pair of new 572b and five new 6146B. No more Amp repairs in my future. Make me an offer. 484-885-5024; Listing #1762537 - Submitted on 03/20/26 by Callsign AB3IX - IP: 216.103.116.3; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: Four new 6ME6 6LQ6 RCA Vacuum Tubes: Four New 6ME6 6LQ6 RCA Vacuum Tubes. 6ME6 are same as 6LQ6 and 6MJ6. Some labeled International Service Master all are made by RCA. Perfect for sweep tube HF amplifiers. Most tube dealers do not have stock now. USA built tubes lasts at least 20 years unlike low life 811A & 572B tubes from China. $139 + $5.75 shipping to USA lower 48.; Listing #1762458 - Submitted on 03/19/26 by Callsign N8FVJ - IP: 71-214-106-17.orlf.qwest.net; Click to Contact -- Send this Ad to a Friend
gs35b: Looking for 2 or 3. Working in goodn condition gs35b preferably without the copper cooler(top)
Shipping. To 11434 Ny; Listing #1762453 - Submitted on 03/18/26 by Callsign 8P5AD - IP: 196.3.215.93; Click to Contact -- Send this Ad to a Friend
Eimac 3CPX800A7 Matched Pair - New: Eimac 3CPX800A7 Matched Pair, New In Box. $2250 OBO
Actual cost of shipping to CONUS Conneticut; Listing #1762441 - Submitted on 03/18/26 by Callsign K1YN - IP: syn-096-032-053-240.res.spectrum.com; Click to Contact -- Send this Ad to a Friend
Sylvania JHS 5718 - ( Lot of 3 ): Subminiature Triode - NOS in their original cartons.
They have unmolested, original full length leads.
Tube data available on Internet…
Offering as collectables - hence As-Is / No Returns - no testing performed.
Price: ( Lot o 3 ) $20.00 Shipped ( CONUS ); Listing #1759627 - Submitted on 02/20/26 by Callsign W6SDW, Modified on 03/18/26 - IP: syn-076-175-204-014.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Raytheon 5703WA Triode ( Lot of 3 ): Subminiature Triode - NOS - Unmolested, original full length leads.
Tube data available on Internet…
Offering as collectables - hence As-Is / No Returns - no testing performed.
Price: ( Lot o 3 ) $20.00 Shipped ( CONUS ); Listing #1759625 - Submitted on 02/20/26 by Callsign W6SDW, Modified on 03/18/26 - IP: syn-076-175-204-014.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend