Free Ham Radio Classified Ads
Ham Radio Classified Ads
A Free Service by KA9FOX & QTH.com

Classifieds Home - Feedback Forum - Swap Chat Board - Safe Trading Tips
Search Ads - Place Ad - Edit Ad - Delete Ad - Callsign Lookup - Make Donation
Contact KA9FOX - Banner Advertising - Web Hosting - Ham Radio Homes

N4PY Control Software - Full Ham Radio Station Automation
View All Banners     Advertise Here

Tubes

Displaying ads 31 to 40 of 62 ads in this category.
= Photo available, click to view      = Ad was Edited or Renewed      = Original Ad
KA9FOX Wishlist on Amazon.com

 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
-
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


BackPrevious 10 AdsNext 10 AdsNext

Ham Radio Microwave Dish Antennas
View All Banners     Advertise Here

Classifieds Home - Feedback Forum - Swap Chat Board - Safe Trading Tips
Search Ads - Place Ad - Edit Ad - Delete Ad - Callsign Lookup - Make Donation
Contact KA9FOX - Banner Advertising - Web Hosting - Ham Radio Homes

© 2025. The QTH.com Ham Radio Classified Ads website is Created and Maintained by Scott Neader, KA9FOX.

3.7930 ms (0.0038 secs)

Free Ham Radio Classified Ads

Uh oh! It looks like you’re using an ad blocker.

Banner Advertising, along with Donations, keeps the QTH.com Classifieds free to use for everyone.
Please support the QTH.com Classifieds by allowing ads to be displayed. Here is how!

Or, for now, you may continue to use this site without unblocking ads.