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

Eimac 3CX1500A7 NOS Tube: Near perfect condition in factory box. I have more pics. This was my spare tube which I never needed. I did test it.
151 amps 126 ma full output serial #lxl0026
$800 includes shipping in USA; Listing #1684834 - Submitted on 04/28/24 by Callsign K4IRI - IP: syn-065-032-157-053.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: Svetlana GU74b PA Tubes, NOS: For Sale: Svetlana GU74b (4CX800) tetrode amplifier tubes, matched pair. New old stock, genuine Svetlana green stripe. Tested, but never used. Comes with factory cartons. Chinese knock off 4CX800's are currently selling at dealer for $2000/pair. Asking $975 for the pair plus shipping/insurance. No trades/ No PayPal/ No scammers. Accepting USPS MO, Zelle, personal check, local pickup.; Listing #1684815 - Submitted on 04/28/24 by Callsign K3AC - IP: pool-72-94-158-253.phlapa.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE GU-74B or 4CX800A tubes: I have Two Set’s of gu-74b or 4cx800a for sale. I sold my QRO-2500DX and no longer have a need for them… There new old stock $700.00 a set you pay the shipping.; Listing #1683123 - Submitted on 04/15/24 by Callsign KD5YCY, Modified on 04/27/24 - IP: 147-160-232-26.taylortel.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
F.S. EIMAC 3CX800AA7 Tubes: EIMAC 3CPX800A7 Tubes
I have a few used and tested tubes for sale. They are pulled from commercial VHF service and were tested OKay for filament current at rated filament voltage. They also pass 4100 volts hi-pot testing between anode and grid/cathode/filament. Finally, they were emission tested at two power levels (20 and 40 watt input) and are provided with test data at those points for grid and plate current and output power levels in grounded grid configuration. Outputs average 540 watts at 40 watt drive level.They were tested in the H.F. frequency range, but will likely function okay throughout their designed frequency range.
My price is $200 each or two for $375 plus shipping.. Payment by check, postal money order ot PayPal. My offer is limited on quantity.
These tubes are great for amplifier testing, building and trouble shooting.
If you wish, you may contact me via eMail through this ad here on QTH.COM.
Thank you for reading may offering.; Listing #1684599 - Submitted on 04/27/24 by Callsign K9AU - IP: 176-248-182-166.mobile.uscc.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
1 KW linear amplifier GS-31b tube: The tube is not new from the box, but has full output .I used it in my ex linear amplifier at 2.5 KV with no more than 300 mA due to the old house wiring which was popping up the breakers of the house where I am presently live(Queens,NY). I took this home brew amplifier to another location and I loaded it into a Drake 1KW dummy load at 900 W output to check that it works. Also I have the 2 milliampermeters for grid and plate. I am asking $ 100 and split shipping. I have the picture of the amplifier I build it myself. Accepting a check or Money order.Thank you for reading my ad.; Listing #1684447 - Submitted on 04/25/24 by Callsign AB2DP, Modified on 04/26/24 - IP: syn-098-014-050-140.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
3-400 8163 made in holland: tube sale.3-400 8163 full out put,made in holland. 100.00 plus shipping, thanks wayne ke8nqx good here on qth.; Listing #1684334 - Submitted on 04/24/24 by Callsign KE8NQX - IP: syn-173-088-034-160.res.spectrum.com; Click to Contact -- Send this Ad to a Friend
For sale 3cx1000a7 power tube: Used 3cx1000a7 (used in old alpha 70, i'm told). Am told it is good but have no way to test it. A rare tube used, priced new at $2,600...but most are sold out. $200 OBO plus shipping. I will only sell to experienced ham as i am offering a full refund if it's not up to par. Those inexperienced at tuning tube amplifiers could dammage this tube and then claim it was bad, not going there. 73's kd7ouy; Listing #1684226 - Submitted on 04/23/24 by Callsign KD7OUY - IP: 21.sub-174-204-2.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: 6156/4-250A NOS Amperex: 6156/4-250A NOS Amperex tested 100% new. Make me an offer.; Listing #1684124 - Submitted on 04/23/24 by Callsign W1JCW - IP: 204.194.218.178; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Eimac 4-1000A, Anode Cap and Chimney: Trying to sell a few items that I believe I will never use. The SK-506 chimney has a very small chip on the top rim. Not cracked and certainly not anything to cause any concern. I will sell it all for $175 shipped to you.; Listing #1684043 - Submitted on 04/22/24 by Callsign K5GO - IP: 172.59.225.59; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
NOS Tubes for sale - Not Tested: 9006 - 1,110 tubes
7193 - 84 tubes
717A-VT-269 - 54 tubes - Western Electric
1A5GT/G-VT-124 - 76 tubes - Sylvania
737 - 10 tubes
12F5GT - 5 tubes
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Limited quantity tubes
6SD7GT - 3
6DQ6B/6GW6 – 1
2AF4B – 3
35W4 – 1
3AL5 – 1
3CB6 – 2
4BZ7 – 1
5AN8 – 1
5U8 – 1
6U8 – 1
12AV6 - 1
12BA6 – 1
12BE6 – 1
35Y4 - 4
Jan OD 3 RCA 74-22 - 1
7126 RCA - 2
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If interested in any particular tube(s) or all tubes, please contact me.; Listing #1678689 - Submitted on 03/11/24 by Callsign N3PV, Modified on 04/21/24 - IP: 208-104-59-20.cm.rkhlsc.dyn.comporium.net; Click to Contact -- Send this Ad to a Friend