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

New in box Mullard 811a: I have for sale 6 Mullard 811a tubes NIB these are the real deal made in England 40.00 each plus shipping cash check or money order; Listing #1736322 - Submitted on 07/16/25 by Callsign W7GS, Modified on 08/06/25 - IP: c-68-56-222-190.hsd1.mi.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
want 8874: Look for used working 8874.; Listing #1738280 - Submitted on 08/02/25 by Callsign WA5RS - IP: 99-85-12-245.lightspeed.nworla.sbcglobal.net; Click to Contact -- Send this Ad to a Friend
EIMAC 4-400 AIR-SYSTEM SOCKETS - REDUCED: MAKE AN OFFER
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I have available for sale 2 used EIMAC Air-System sockets. The tube sockets are tarnished, but in good physical condition. One for $50 shipped in the USA, or both for $90 shipped in the USA.; Listing #1734824 - Submitted on 07/02/25 by Callsign K3DUA, Modified on 08/01/25 - IP: pool-100-16-175-78.bltmmd.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Wanted: Pair of 572B Tubes: Looking for a matched pair of NOS 572Bs. Scammers beware. Please contact me via QRZ.
73 Chris K1FIE; Listing #1737998 - Submitted on 07/31/25 by Callsign K1FIE - IP: 74.253.6.43; Click to Contact -- Send this Ad to a Friend
New Eimac 3cx800A7 pair,: For sale, new in the box, Eimac 3cx800a7 tubes. I have two to sell, one or two tubes. at $800 for a single and $1500 for the pair, plus actual insured shipping.; Listing #1737364 - Submitted on 07/25/25 by Callsign JR4VDV - IP: 203.78.229.14; Click to Contact -- Send this Ad to a Friend
3CX1200A7: Up for sale is a used 3CX1200A7.
This 3CX1200A7 has had a hard life but it still mostly works. Do you have an AL-1200 or a homebrew amp needing this tube? It is for sale - $1000 shipped anywhere in the USA.
Tested to be at 75% of capacity by Richarson Electronics. A copy of the report is available.
$1000 includes shipping.
Insurance is not included.
Cashier check or cash on pickup.
On 7.070 Mhz (CW at 100 watts in) into a 50 ohm dummy load in my Henry 3K I get 1500 watts. When I pulled it out of my AL-1200 I got 1000 watts out. I suspect this is due to the higher plate voltage in the Henry 3K.
People who are local are welcome to come over and check the tube before pickup.
As is sale with no warranty for used 3CX1200A7.; Listing #1737253 - Submitted on 07/24/25 by Callsign AB2NI - IP: ool-ad03d8f4.dyn.optonline.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
WTB Eimac 3cx1200D7: I’m looking for a tube. 3cx1200D7. Several Henry amps used this tube. amplifier. Looking for a NOS or 100% full output tube. Thank you!!; Listing #1734948 - Submitted on 07/04/25 by Callsign 918-810-6767, Modified on 07/21/25 - IP: ip98-160-122-72.ok.ok.cox.net; Click to Contact -- Send this Ad to a Friend
Wtb svetlana 4cx1600b: Looking to buy new or fully working
svetlana 4cx1600b let me know what you have thank you; Listing #1736754 - Submitted on 07/20/25 by Callsign WW2PR - IP: ool-457886a4.dyn.optonline.net; Click to Contact -- 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 #1736632 - Submitted on 07/19/25 by Callsign KH6JTM - IP: c-73-242-208-180.hsd1.nm.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Rare "Eimac Social Committee" Lapel Pin: Selling an incredibly rare "Eimac Social Committee" 10k gold filled lapel pin. I've never seen another one of these.
Guaranteed to be a conversation starter at your next radio event!
Photo attached.
$80 shipped. Payment via USPS "postal" m/o please; Listing #1736590 - Submitted on 07/18/25 by Callsign KJ6NKX - IP: syn-174-083-251-235.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend