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New Mil-Spec 7203/4CX250B Tubes: New Eimac tubes in sealed cans.
Matching Date codes
One pair left
$195 shipped USA (2 Tubes); Listing #1724090 - Submitted on 03/29/25 by Callsign KL7AM, Modified on 04/11/25, Web Site: https://kl7am.com/ - IP: 198-119-35-72.mtaonline.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Professionally Tested Eimac YU-158/8877: The following report was prepared by:
Richardson Electronics
11267 Commercial Way
Brooksville, Fl. 34614
Eimac YU-158/8877 - - S/N SKD-0143
5KVDC was applied to the anode grounded to grid and showed no current draw at all indicating the tubes vacuum had not been compromised.
Additionally, there are no inter-electrode shorts within the tube. Application of 5VDC to the filament of the tube shows a current draw of 10.4A which is normal for this type of tube. Factory specification is 10.5A. Tube was pulse tested under load and showed a peak emission of 62. Normal for a new tube of this type is 60. Conclusion: This tube is in good condition and makes full emission of a new tube. This tube should be serviceable in most applications, but it is not recommended to be put into medical service. The original test results will be enclosed with the sale. Sold AS IS because I cannot control how it might be tested or used. $850.00 plus shipping. W0ZD; Listing #1725083 - Submitted on 04/07/25 by Callsign W0ZD, Modified on 04/11/25 - IP: c-73-101-20-251.hsd1.pa.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE: a pair GU74b tubes: The pair was used for about a year in alpha 91B. These were new old stock and cycled with spared set.
I am selling the amp so don't need this seat anymore anymore.
$650 shipped in USA
Terry K7NY
503-857-2590; Listing #1723404 - Submitted on 03/23/25 by Callsign K7NY, Modified on 04/11/25 - IP: c-24-20-68-132.hsd1.or.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: RCA 874 tubes: Two tested good RCA 874 tubes. Asking $40 plus mailing.; Listing #1725302 - Submitted on 04/09/25 by Callsign W1JCW - IP: syn-075-087-040-210.biz.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Eimac 4cx150a lot: Here is a lot of 15 used eimac tubes 4cx150s and one new in the box national tube 4cx150 . These was my spares and I’m no longer needing cleaning out my storage I’m asking 200.00 obo for all in the photo plus shipping 25.00 . All the used tubes was tested at one time couple years ago and had good output they have been in storage last couple years . There is a total of 16 here including the new tube . Cash app, zelle , or Venmo for payment or cash local sale is welcome thks ken Kt4ki Bham; Listing #1721101 - Submitted on 03/04/25 by Callsign KT4KI, Modified on 04/08/25 - IP: 107-217-34-192.lightspeed.brhmal.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
4cx1000a Alpha Tube for sale: This Alpha 4cx1000a is a good pull.
$600 and I will pay shipping in the Continental US.; Listing #1724876 - Submitted on 04/05/25 by Callsign AD4LE - IP: fl-67-235-132-231.dhcp.embarqhsd.net; Click to Contact -- Send this Ad to a Friend
Looking for two new 6ds4 nuvistors: I need two 6ds4 nuvistors .
If you have a couple laying around and want to part with them message me; Listing #1724826 - Submitted on 04/05/25 by Callsign KG4WPW - IP: 159.sub-174-229-20.myvzw.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 #1714442 - Submitted on 01/07/25 by Callsign W1JCW, Modified on 04/05/25 - IP: 23-92-13-217.wirestar.net.wirestar.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: Eimac Y-779: Have NEW Eimac Y-779. Asking $60 plus shipping.; Listing #1714796 - Submitted on 01/10/25 by Callsign W1JCW, Modified on 04/05/25 - IP: 23-92-13-217.wirestar.net.wirestar.net; Click to Contact -- Send this Ad to a Friend
ISO: TUNG-SOL 8236: Hi, looking for some 8236 tubes! Thanks; Listing #1724774 - Submitted on 04/05/25 by Callsign KC2LED - IP: syn-067-249-018-034.res.spectrum.com; Click to Contact -- Send this Ad to a Friend