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

EIMAC 3CX800A7 PULL: TUBE EXTRA PULL FROM COMMANDER 6M AMP NEED NO MORE $300.00 PAY PAL SHIPPED INURED; Listing #1748617 - Submitted on 11/05/25 by Callsign W4IMD, Modified on 12/23/25 - IP: 99-102-212-226.lightspeed.tukrga.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOUR 6MJ6/6LQ6 SWEEP TUBES *CHEAP*: here are 4 6mj6/6lq6 sweep tubes
I know nothing about these tubes as i have nothing to test them with . $80.00 for all plus shipping; Listing #1753506 - Submitted on 12/22/25 by Callsign KG4WPW - IP: 112.sub-174-218-53.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
4cx250b tubes: Here is four 4cx250b transmitting tubes .
2 are brand new still sealed in thier cans . 2 are opened but look very nice . The 2 open ones may very well be good , i cant say for sure but the 2 new ones in the cans will make up for the price .
I'll take $200.00 + shipping for all four; Listing #1753401 - Submitted on 12/21/25 by Callsign KG4WPW - IP: 18.sub-174-218-52.myvzw.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
6883 (12 Volt 6146) - $20
1625 - $10
4-250 - weak - $19
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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 #1753392 - Submitted on 12/21/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Amperex 4-250 Transmitting Tube For Sale: Amperex 4-250 Transmitting Tube For Sale:
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The Amperex 4-250 / 5022 is a high power
transmitting tube, very closely related to
the well known 4-400, and a cousin to the
3-500. It fits the same socket as the 4-400
and 3-500.
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The major difference between the 4-250 and
4-400 is that the 4-250 has 250 watts of plate
dissipation, while the 4-400 has 400 watts.
They usually can be used interchangeably as
long as the plate dissipation is not exceeded.
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Weak 4-250
This 4-250 has low output.
It is not dead or shorted, but simply has low output.
It would be ideal for testing an amplifier. It is
NOT dead.
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Only $19 plus shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1753391 - Submitted on 12/21/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Send this Ad to a Friend
6CL6 tubes For Sale: 6CL6 tubes For Sale:
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I found a stash of 6CL6 tubes. These are NOS.
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The 6CL6 is used as a driver tube in some of the
hybrid rigs, plus many of the older vintage rigs.
Many have found that low power output in these
rigs is due to a weak 6CL6 instead of weak finals.
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Buy these for only $8 each, plus shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1753390 - Submitted on 12/21/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
WTB Matched pair of GU74 4cx800 tubes: Looking to buy a matched pair of GU74B tubes. Please email pictures and price. Thanks and 73’s W4EKY. Will only respond to emails through qth.; Listing #1753326 - Submitted on 12/20/25 by Callsign W4EKY - IP: 173.80.206.227; Click to Contact -- Send this Ad to a Friend
3cx1200d7: 3cx1200d7 tube. Tested 80 percent output.
$150.00 shipped, paypal preferred payment method; Listing #1753316 - Submitted on 12/20/25 by Callsign N4SQB - IP: syn-162-155-021-234.biz.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Eimac 8874 Tubes: Tested for full power out - lightly used. Sold my PA so no longer need these spares.
$425 each or all three for $900 (obo). Good on QRZ.; Listing #1753287 - Submitted on 12/20/25 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
Wtb 3cx3000a7 chimney and socket: Wtb 3cx3000a7 chimney
Also there was a guy in Ukraine made sockets
For the 3000a7 I’d buy one of could locate
That style socket
Thanks
Kc9nap; Listing #1753239 - Submitted on 12/20/25 by Callsign KC9NAP - IP: 172.56.249.209; Click to Contact -- Send this Ad to a Friend