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

FOR SALE: GU74-B: GU74-B tested in ACOM 1000 and compared with NOS tube. Comparable output for a single tube ~ 735 w in the ACOM 1000.
$300 including shipping within USA (stateside) from CT; Listing #1767413 - Submitted on 05/08/26 by Callsign K2GBH - IP: ool-44c2aec7.dyn.optonline.net; Click to Contact -- Send this Ad to a Friend
3x 811A Tubes – $100 shipped: For sale: Lot of 3x 811A tubes.
* Clean glass
* Good internal structure
* Pins in good condition
* Removed from working amplifier
Selling as a lot (3 tubes).
$100 shipped (CONUS)
Payment: PayPal or Zelle
Please contact via message.
73,
WJ4DX; Listing #1767149 - Submitted on 05/05/26 by Callsign WJ4DX - IP: syn-072-187-184-102.res.spectrum.com; Click to Contact -- Send this Ad to a Friend
Matched Pair Cetron 572B Tubes – Clean –: For sale: Matched pair of Cetron 572B tubes.
* Clean glass, no haze
* Good internal structure
* Pins in good condition
* Bases tight, no cracks
* Removed from working amplifier
These are getting harder to find in good condition.
Price: $200 + actual shipping
Payment: PayPal or Zelle
Callsign: WJ4DX
Location: FL
Photos available upon request or see listing photos.
73; Listing #1767148 - Submitted on 05/05/26 by Callsign WJ4DX - IP: syn-072-187-184-102.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
6146 Tubes For Sale: 6146 Tubes For Sale:
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I have two 6146 tubes available.
They are NOT a pair.
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The first is an RCA 6146 A. It tests
at 98% on my Hickock 600 tube tester.
It is $15.
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The second is a GE 6146 B. It tests 111%.
It is $20.
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Prices do not include shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1767038 - Submitted on 05/04/26 by Callsign W8EK - IP: customer.mmmiflx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Vacuum Tubes for sale: Vacuum Tubes for sale:
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Note: Most tubes are NOS (New, but Old Stock).
All have been tested, and test good.
In most cases, more than one tube is available.
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Audio output
6AQ5/6005 - $6
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Sweep tubes
Zenith 6LB6 - $20 - Only one left.
6GE5 - $12
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transmit tubes
6CL6 - $8
2E26 - $8
5763 - $5
6146 A - $15
6146 B - $20
6883 (12 Volt 6146) - $20
1625 - $10
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Diode / Rectifier tubes:
0 Z 4 - $5
1B3 - $1
3B24 - $8
5Y3 - $8
6AL5 - $4
5642 - 10,000 PIV, w/ wire leads - $5
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Regulator tubes
0A2 - $6
0B2 - $6
0C3/VR-105 - $6
0D3/VR-150 - $6
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Amperite Ballast tubes: $8 each
1H46
3-16
3-38
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Loctal tubes:
7A8 - $4
7B4 - $4
7C5 - $5
7F7 - $8
7F8 - $6
7H7 - $4
7K7 - $6
7N7 - $9
7Q7 - $5
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Prices do not include shipping from Florida.
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I am working my way thru the 1000+ tubes
that I have. If you need something let me
know.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1767037 - Submitted on 05/04/26 by Callsign W8EK - IP: customer.mmmiflx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Amp 4-400 Recon-Tested AND TUBE TESTING: TWO, 4-400 Amperex RESTORED and TESTED to 'like new' condition. AM BC Pulls
ENGINEERING BASED TESTING with full test data and LINEARITY GRAPH/EQUATION, all designed and tested by me, an R&D engineer
MONSTER heat sink INCLUDED
Video of the restoring and testing process thru Ytube link
$300 cash, EACH, P.O. MO or check after clearance. NO guarantee of any kind to Hobbyists. These are industrial and broadcast tubes, not hobby toys. Hams are known for destroying amp tubes.
NOT for sale to No Code Licensees UNLESS you can assure me you wont DIE. Have your Elmer contact me. You can DIE JUST PLUGGING IT IN.
Contact- email, send your phone #.
Pickup/Shipping E TN
Pickup preferred to prevent shipper from playing Basketball with the package.
Shipping, YOU determine the box and packaging and carrier, ship the box to me with a return ship label. UPS, Fedex or Postal.
TUBE TESTING
Currently set up to test 3/4- 400/500, others possible. Test fixture to 2 KV for "minimum distortion bias case".; Listing #1766494 - Submitted on 04/29/26 by Callsign K8BYP, Modified on 04/30/26, Web Site: https://www.youtube.com/watch?v=nKq12OIVcXU - IP: mobile-107-77-233-110.mobile.att.net; Click to Contact -- Send this Ad to a Friend
FS: Two new Lindal 6DS4 Tubes: Two new Lindal 6DS4 Tubes. $29.95 + $5.75 shipping to USA lower 48.; Listing #1766420 - Submitted on 04/29/26 by Callsign N8FVJ - IP: 71-214-51-64.orlf.qwest.net; Click to Contact -- Send this Ad to a Friend
Eimac 3CX800A7: 2 Eimac 3cx800a7. They were full output when pulled. $825 shipped.; Listing #1765333 - Submitted on 04/18/26 by Callsign N4UU - IP: 172.59.65.158; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: Pair of NEW 4CX1500B VTX-X120: NEW, NOT USED or pulls. MADE IN USA pair of tested Penta 4CX1500B tubes in original Alpha RF boxes with factory testing documents. Zero Hours = N.O.S. Asking $1,200 each for an Alpha 8406 or $2,000 for both to use in a Alpha 8410, or swap for two same condition N.O.S. tested but NEVER USED 3CX800A7 tubes for my 87AR. Compare to https://www.alpharfsystems.com/?ec_store=pageid1519modelnumbervtx-x120 Free pickup near Denver, or add actual postage/shipping. PayPal OK if needed ASAP or check in mail is OK too. Please email for factory documents or more photos. Tested in my 8410 before that was sold but still have these NEW TUBES.; Listing #1765306 - Submitted on 04/18/26 by Callsign AC0KC - IP: 29-90-42-72.skybeam.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: Eimac 4CX250K / 8245: Matched Eimac 4CX250K. $40 plus shipping; Listing #1764705 - Submitted on 04/11/26 by Callsign W1JCW - IP: 23-92-13-217.wirestar.net.wirestar.net; Click to Contact -- Send this Ad to a Friend