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

For Sale: Eimac 3CPX-1500A7 NOS: For sale is an Eimac 3CPX-1500A7 new old stock tube. Tube will come with two tube sockets, teflon chimneys and mounting hardware. Intentions were to build one more big amp but plans changed. $900 plus insured shipping.; Listing #1740050 - Submitted on 08/17/25 by Callsign KT5D, Modified on 08/24/25 - IP: syn-096-038-112-253.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
want 8874: Look for used working 8874.; Listing #1740292 - Submitted on 08/19/25 by Callsign WA5RS - IP: 99-85-12-245.lightspeed.nworla.sbcglobal.net; Click to Contact -- Send this Ad to a Friend
Vacuum Tubes for sale: Vacuum Tubes for sale:
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Note: Most tubes are NOS (New, but Old Stock).
All have been tested, and test good.
In most cases, more than one tube is available.
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Audio output
6AQ5/6005 - $6
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Sweep tubes
Zenith 6LB6 - $20 - Only one left.
6GE5 - $12
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transmit tubes
6CL6 - $8
2E26 - $8
5763 - $5
6883 (12 Volt 6146) - $20
1625 - $10
4-250 - weak - $19
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Diode / Rectifier tubes:
0 Z 4 - $5
1B3 - $1
3B24 - $8
5Y3 - $8
6AL5 - $4
5642 - 10,000 PIV, w/ wire leads - $5
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Regulator tubes
0A2 - $6
0B2 - $6
0C3/VR-105 - $6
0D3/VR-150 - $6
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Amperite Ballast tubes: $8 each
1H46
3-16
3-38
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Loctal tubes:
7A8 - $4
7B4 - $4
7C5 - $5
7F7 - $8
7F8 - $6
7H7 - $4
7K7 - $6
7N7 - $9
7Q7 - $5
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Prices do not include shipping from Florida.
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I am working my way thru the 1000+ tubes
that I have. If you need something let me
know.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1740240 - Submitted on 08/19/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Amperex 4-250 Transmitting Tube For Sale: Amperex 4-250 Transmitting Tube For Sale:
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The Amperex 4-250 / 5022 is a high power
transmitting tube, very closely related to
the well known 4-400, and a cousin to the
3-500. It fits the same socket as the 4-400
and 3-500.
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The major difference between the 4-250 and
4-400 is that the 4-250 has 250 watts of plate
dissipation, while the 4-400 has 400 watts.
They usually can be used interchangeably as
long as the plate dissipation is not exceeded.
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Weak 4-250
This 4-250 has low output.
It is not dead or shorted, but simply has low output.
It would be ideal for testing an amplifier. It is
NOT dead.
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Only $19 plus shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1740239 - Submitted on 08/19/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
6CL6 tubes For Sale: 6CL6 tubes For Sale:
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I found a stash of 6CL6 tubes. These are NOS.
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The 6CL6 is used as a driver tube in some of the
hybrid rigs, plus many of the older vintage rigs.
Many have found that low power output in these
rigs is due to a weak 6CL6 instead of weak finals.
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Buy these for only $8 each, plus shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1740238 - Submitted on 08/19/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Dead 3-500 Tube For Sale: Dead 3-500 Tube For Sale:
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I have a dead 3-500 tube available. It
no longer functions as an amplifier, but
the filament in it is good, so it could
be used for making a lamp, or any other
place where only the filament is needed.
Buy it for only $12 plus shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1740237 - Submitted on 08/19/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Send this Ad to a Friend
3 NEW National Electronics 4cx-250b: 3 New 4cx-250b tubes
Shipped conus for $130; Listing #1738546 - Submitted on 08/04/25 by Callsign WG3U, Modified on 08/18/25 - IP: 150-195-81-149.client.mchsi.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Many power tubes 810, 4-400A REDUCED: For Sale are the following power tubes
8ea 4-400A eimac, other $50each
10ea 810's. various manufacturers $50 each
2 ea PL-175A $50 each
a number of 813's $20 eash
2ea 4d32's $20 each
or make offer, plus shipping; Listing #1732775 - Submitted on 06/13/25 by Callsign K6ZIV, Modified on 08/17/25 - IP: c-174-62-98-30.hsd1.ca.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: UNGAR SOLDERING IRON-1235-S: For Sale: UNGAR Model 1235-S soldering iron Heater in package.
Modular "S" for #750, 776, 777 Handles.
33 Watts 120vac/dc; Takes 1/8" tips.
800F./427C.--Have only two left of this model.
I have many other types of UNGARS, too.
Email me or see my other QTH ads for more.
$9.00 each: $15.00 for both plus $4.50 USA shipping.
Your check or USPS MO. Or PayPal to: jtg4300 at yahoo.com
I am gd in QRZ.
Will combine shipping, where possible
See my other ads for Simpson, Drake, and other gear.
Your check or USPS MO; I am gd in QRZ.
Just let me know that payment is on the way and I will ship and get you the Tracking number.; Listing #1734252 - Submitted on 06/27/25 by Callsign WA1BRI, Modified on 08/17/25 - IP: 47-199-166-140.fdr01.stgr.fl.ip.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Five (5) 6KD6 Tubes: I have five(5) 6KD6 tubes For Sale. I also have a Yaesu FL2500 HF amplifier that uses these tubes. Currently amplifier does not put out full powwer Asking $575 for the package... or make me an offer. Contact Roger I'm located near Grand Rapids Michigan; Listing #1739741 - Submitted on 08/14/25 by Callsign AH2AV - IP: c-68-55-83-230.hsd1.mi.comcast.net; Click to Contact -- Send this Ad to a Friend