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

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 #1742920 - Submitted on 09/12/25 by Callsign K3DUA, Modified on 10/24/25 - IP: pool-108-50-43-148.bltmmd.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
more power tubes REDUCED: Power vacuum tubes:
1ea Eimac 8165/4-65A NIB $25 each
1ea JAN 5894 NIB $20
2ea Eimac 4cx250B $25 each
all plus shipping; Listing #1746120 - Submitted on 10/13/25 by Callsign K6ZIV, Modified on 10/23/25 - IP: c-174-160-187-166.hsd1.ca.comcast.net; Click to Contact -- Send this Ad to a Friend
EIMAC 4CX300A 8167 NOS: This tube was taken out of storage and was wrapped in original protective bag. It has not been tested but there is no reason to think it isn’t still as new. $20 shipped. I take Paypal, PMO and check; Listing #1747167 - Submitted on 10/23/25 by Callsign W6XI - IP: ip68-109-162-111.ph.ph.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
CETRON 6336B - Lot of 3: These are CETRON / JAN 6336B -- Grey Plates, Halo Getters.
Tubes and Boxes have matching date codes - 12/75 (1) and 5/76 (2) - so will assume NOS.
Untested as my Hickok TV-3B/U has no setup data for these. Filaments check good.
Price: $65 Shipped ( CONUS ) - PayPal preferred.
Will accept USPS MO or Personal Check - but No Ship until cleared.; Listing #1746449 - Submitted on 10/16/25 by Callsign W6SDW, Modified on 10/21/25 - IP: syn-076-175-204-014.res.spectrum.com; Click to Contact -- Click Here to View Picture -- 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 #1746978 - Submitted on 10/21/25 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 #1746977 - Submitted on 10/21/25 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 #1746976 - Submitted on 10/21/25 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 #1746975 - Submitted on 10/21/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net; Click to Contact -- Send this Ad to a Friend
FOR SALE SVETLANA 572BS: WE HAVE A MATCHED PAIR OF 572 B TUBES NEW IN BOX ASKING 350 SHIPPED; Listing #1746911 - Submitted on 10/20/25 by Callsign N4RIU - IP: c-73-27-37-47.hsd1.fl.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Eimac 8877 Tube: Two tubes for sale. One used and one new both for $700.
I will pay for shipping and insurance.; Listing #1746867 - Submitted on 10/20/25 by Callsign WA2USA - IP: 209-122-101-210.s5584.c3-0.nwb-e6k1.evnv.in.cable.rcncustomer.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend