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

FS MKS 3CPX1500A7: USED medical pull MKS 3CPX1500A7 S/N 1306294 Date Code 1329 Tested in my AL1500 amp a few weeks ago. Makes same power as the Eimac 8877 in the amp did 160-10M around 2100W within input power,plate voltage / current limits and grid current limits. Sold amp, no longer need. $575 shipped insured in USA.
Packed in Eimac 8877 factory carton, will be double boxed. Sold as described, AS-IS, no warranty offered. Email for payment or other info needed.; Listing #1759230 - Submitted on 02/16/26 by Callsign NN4TT - IP: 46-110-206-137.appkflaa.metronetinc.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
YC-179-A 3CX5000 new: TUBE - YC-179-A (3CX-5000)
REDUCED PRICE...Asking price $1500.00. or best offer. Unused in original packaging. Jim 570-814-8083 lv msg; Listing #1759179 - Submitted on 02/16/26 by Callsign KB3YZU - IP: 50-32-92-159.vng01.dlls.pa.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: UNGAR 1236-S SOLDERING IRON: For Sale: UNGAR Model 1236-S soldering irons in package.
Modular "S" for #750, 776, 777 Handles.33 Watts 120vac/dc.
Pyramid type Iron Clad tip.
See my ads for many other types of UNGARS, too.
$13.00 each: $29.00 for all three plus $4.95 USA Shipping for one or more.
Add a matching Ungar handle for another $7.00.
Your check or USPS MO. I am gd in QRZ.
PayPal is OK, too. Use: jtg4300 at yahoo.com
Will combine shipping, where possible.
See my Feedback and other ads for Simpson, Drake, RF Connectors and other gear.
Just let me know that payment is on the way and I will ship and get you the Tracking number.; Listing #1751884 - Submitted on 12/06/25 by Callsign WA1BRI, Modified on 02/15/26 - IP: 47-199-186-130.fdr01.stgr.fl.ip.frontiernet.net; 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.
( Taken from Eimac Spec Sheet ):
The 4CX250R/7580W is designed specifically for use in Class AB1 linear amplifiers where shock and/or vibration preclude the use of non-ruggedized tube types. The 4CX250R/7580W will deliver more output in most linear amplifiers which presently employ 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 -
Yours for: $ 40.00 + $10.00 Ship (CONUS) from 92117 - 6x6x6 box - 1-2 lbs.
PayPal / USPS MO preferred - Check Accepted, but no ship until clears.; Listing #1757770 - Submitted on 02/03/26 by Callsign W6SDW, Modified on 02/14/26 - IP: syn-076-175-204-014.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
GU74B's with sockets: I have 4 GU74B's, 2 are pulls from my amp sold a few months ago which are still good. I used them in rotation. Also have 2 new and 2 new sockets. Will Sale as a whole lot or in sets. I will sell all for $1200 Shipped or email me with offer. I have pictures of tubes I can send email. Thanks. 73; Listing #1758027 - Submitted on 02/05/26 by Callsign KG4WQP, Modified on 02/14/26 - IP: 67-60-142-40.cpe.sparklight.net; Click to Contact -- Send this Ad to a Friend
8BN8 for Drake 2B: 8BN8 AVAILABLE AGAIN Feb 2026 - 8BN8 tube NOS for Drake 2B. Brand may vary from illustration. Boxes a bit ragged from age and storage. I install each of these in my 2B to make sure it functions. YMMV. $19.99 each includes shipping to ConUS. Outside of US contact me first. Drake 2B owners should have a spare or two. Checks ok from QRZ verified hams. Paypal accepted. Order soon - my supply won't last forever.; Listing #1744137 - Submitted on 09/25/25 by Callsign WA8HKO, Modified on 02/13/26 - IP: ip-66-42-240-249.dynamic.fuse.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
f/s qty 2 3CX800A7 EIMAC tubes: Here is one of my spare sets of 3CX800A7 tubes for my Alpha 87A. These were rotated in for a day every 2-3 years to keep them from getting gassy. Full 1500++ Watts output with less than 50 Ma grid current on all bands. Very closely matched. They show tarnished however the tubes are in excellent electrical shape. $790 shipped. I accept Zelle, PayPal, check, USPS M/O. Search my call for more listings. Bob WB2UBW; Listing #1758369 - Submitted on 02/08/26 by Callsign WB2UBW, Modified on 02/12/26 - IP: c-67-187-106-101.hsd1.ky.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RCA 813 $45 PLUS SHIPPING: Used tube tested good.; Listing #1758728 - Submitted on 02/11/26 by Callsign K5DKZ - IP: syn-076-183-146-186.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
AUDIO TUBES: Two 6L6 and five 6SN7GT entire lot for $95 plus shipping; Listing #1758727 - Submitted on 02/11/26 by Callsign K5DKZ - IP: syn-076-183-146-186.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
6SN7GTB: Used tested good. $20 each or all seven for $85 plus shipping.; Listing #1758725 - Submitted on 02/11/26 by Callsign K5DKZ - IP: syn-076-183-146-186.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend