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

15 12AT7 RCA tubes old stock for $300: 15 12AT7 old stock RCA tubes for $300 or possible trade for 12AX7 or 7199 or what do you have?; Listing #1765604 - Submitted on 04/20/26 by Callsign KB3WG - IP: 71.60.72.245; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
NATO Eimac 8877 Milspec Triode: This is a milspec Eimac 8877 ceramic triode, NATO# V06-0001-000 5960-00-313-6715 sh:2921
It fits perfectly into any 8877 socket since the OD is identical to consumer grade Eimac 8877. But the inner heatsink is 2X the surface area of Eimac consumer, and the heatsink metal itself is 50% thicker than Eimac consumer.
It has been tested to legal limit power which it achieves easily. But it’s clear from looking at its physical characteristics that NATO wanted and got an 8877 that could be pushed harder, for longer, and in more extreme conditions.
The tube has been tested (anode characteristics consistent with being clipped into a rig for testing), but otherwise it appears to be in unused or very lightly used condition. Comes in original packing materials.
$875 shipped CONUS.; Listing #1765420 - Submitted on 04/19/26 by Callsign K1FIE - IP: c-50-189-24-238.unallocated.comcastbusiness.net; Click to Contact -- Send this Ad to a Friend
NATO Eimac 8877 Milspec Triode: This is a milspec Eimac 8877 ceramic triode, NATO# V06-0001-000 5960-00-313-6715 sh:2921
It fits perfectly into any 8877 socket since the OD is identical to consumer grade Eimac 8877. But the inner heatsink is 2X the surface area of Eimac consumer, and the heatsink metal itself is 50% thicker than Eimac consumer.
It has been tested to legal limit power which it achieves easily. But it’s clear from looking at its physical characteristics that NATO wanted and got an 8877 that could be pushed harder, for longer, and in more extreme conditions.
The tube has been tested (anode characteristics consistent with being clipped into a rig for testing), but otherwise it appears to be in unused or very lightly used condition. Comes in original packing materials.
$875 shipped CONUS.; Listing #1765385 - Submitted on 04/19/26 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 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
Eimac 4-125A and RCA 829B with socket: Five Eimac 4-125A tubes
$100 shipped.
One RCA 829B with socket $35 shipped.; Listing #1765239 - Submitted on 04/17/26 by Callsign W5RJJ - IP: 74.244.15.137; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Raytheon RK-4D32 ( NOS ): Spares / Replacements for your vintage Collins 32V / Hallicrafters or Johnson Xmtrs ??
Have 2 in their factory sealed boxes - Will Ship “ Box-in-Box ”. AS-IS, No Returns…
( Unboxed tube is for reference Only... )
Price: $30.00 EACH Shipped ( CONUS ) from 92117
PayPal / USPS MO preferred - Check OK but no ship until cleared.; Listing #1764098 - Submitted on 04/04/26 by Callsign W6SDW, Modified on 04/16/26 - IP: syn-076-175-204-014.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 -
Reduced Price now: $ 36.00 Shipped (CONUS) from 92117 - 6x6x6 box - 1-2 lbs.
PayPal / USPS MO preferred - Check Accepted, but no ship until clears.; Listing #1764099 - Submitted on 04/04/26 by Callsign W6SDW, Modified on 04/16/26 - IP: syn-076-175-204-014.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Eimac 8660 Ceramic Triode - NIB: This is a brand new unused Eimac 8660 in its original packaging. Heat spreader has a small ding, but otherwise mint. Package will be shipped UPS insured and double boxed.
$799 shipped CONUS.; Listing #1764973 - Submitted on 04/14/26 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
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 #1764895 - Submitted on 04/13/26 by Callsign W8EK - IP: customer.mmmiflx1.isp.starlink.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend