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

Wtb 4-1000a: Looking. For a good condition 4-1000.a Tube
Shipping to 11575; Listing #1727525 - Submitted on 04/28/25 by Callsign 8P5AD - IP: 196.3.204.188; Click to Contact -- 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 no returns because I cannot control how it might be used or abused. $800.00 plus shipping. W0ZD; Listing #1725083 - Submitted on 04/07/25 by Callsign W0ZD, Modified on 04/27/25 - 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.
$550 shipped in USA
Terry K7NY
503-857-2590; Listing #1723404 - Submitted on 03/23/25 by Callsign K7NY, Modified on 04/25/25 - IP: c-24-20-68-132.hsd1.or.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Eimac 4CX1000A Tube socket kit (new): I have one tube socket kit for the 4CX1000A tube. SK-810 socket and SK-806 chimney. Sell for $275... or (?), plus postage. Bought for amp project that never was. K3HVG; Listing #1727048 - Submitted on 04/25/25 by Callsign K3HVG - IP: c-73-135-54-250.hsd1.md.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Wtb working gs 35b: Looking to buy. Working full output gs 35b. It can come
Without the copper cooler; Listing #1726929 - Submitted on 04/23/25 by Callsign 8P5AD - IP: 196.3.196.180; Click to Contact -- Send this Ad to a Friend
New and Used 3CX400A7/8874 tubes: All tubes tested by:
Richardson Electronics
Brooksville, FL 34614
• NEW PULSE TESTED 4CX400A7/8874 = 100% emission
• NEW: 3CX400A7/8874
S/N TKLD0054 PULSE TESTED 100% $500.00*
S/N SBQD0053 PULSE TESTED 92% $460.00*
• USED: 3CX400A7/8874
S/N BLJD2324 PULSE TESTED 79% $300.00*
S/N BLKB2829 PULSE TESTED 83% $400.00*
• Prices plus shipping
• Tubes original test data supplied for each tube
Since I'm unable to control how these tubes may be used or abused I'm selling them AS IS no returns.; Listing #1725928 - Submitted on 04/14/25 by Callsign W0ZD, Modified on 04/23/25 - IP: c-73-101-20-251.hsd1.pa.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Six Raytheon 4D32 Transmit Tubes: Six 4D32 Raytheon Tubes. NOS(New Old Stock). These have been in my storage for a long time. I no longer have the transmitter they went with. 5 are still in their sealed boxes. I opened one for a picture. The boxes show their age, but they are still sealed and packed well. I cannot vouch for their performing. 3 are dated 12/79, 2 12/78 and one 12/80 $110 for all 6 plus postage.; Listing #1726675 - Submitted on 04/21/25 by Callsign W2CQ - IP: 108-213-126-144.lightspeed.miamfl.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
4-250A tube: 4-250A tube. Good filament and not shorts. $35.00 shipped CONUS.; Listing #1725657 - Submitted on 04/12/25 by Callsign W1GEE, Modified on 04/21/25 - IP: 146.70.165.177; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: Amperex 4CX250F Ceramic Tube: NOS Amperex 4CX250F Ceramic output tube. Tube was mistakenly purchased to replace a 4CX250B. As we found out, the circuit for the 4CX250B is a 6 Volt filament as is the 4CX250B. We then found out that the 4CX250F uses a 26.6 Volt filament source…… so this tube is up for sale as maybe it was developed for military use with that filament voltage? $30 shipped CONUS. Not interested in trades.; Listing #1722563 - Submitted on 03/16/25 by Callsign KH6JTM, Modified on 04/20/25 - IP: c-73-242-208-180.hsd1.nm.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
NEW 4CX1500B VTX-X120: NOT USED or pulls. MADE IN USA
Pair of tested 4CX1500B tubes in original Alpha RF box with factory testing documents. Zero Hours = N.O.S.
Asking $1,400 each for an Alpha 8406 or $2,400 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.
Free pickup near Denver, or add actual postage/shipping for elsewhere. Paypal OK if needed ASAP; Listing #1726270 - Submitted on 04/18/25 by Callsign AC0KC - IP: 101-65-42-72.skybeam.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend