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

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 shorted, but simply has low output.
It would be ideal for testing an amplifier.
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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 #1682872 - Submitted on 04/13/24 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 NOS tubes for only $8 each, plus shipping
from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1682871 - Submitted on 04/13/24 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
N Eimac 3-500Z: Local sale only! I have two new 3-500Z tubes, bought as spares for my 2 L-4B linears which were sold. I may regret but don't think I'll be getting another 3-500Zamp. Local inspection and pick-up/meet only. I will not risk shipping loss. $480 for the pair. Thanks... (tint on tube envelope from flash!)
K3HVG; Listing #1682213 - Submitted on 04/08/24 by Callsign K3HVG, Modified on 04/13/24 - IP: c-73-135-54-250.hsd1.md.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
AMPEREX 8930 NOS: STILL IN FACTORY SEALED PACK
$325 SHIPPED US; Listing #1682584 - Submitted on 04/11/24 by Callsign K4WSB, Modified on 04/12/24 - IP: 47.199.235.19; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS EIMAC 3CPX800A7 Tubes: I have a few used and tested tubes for sale. They are pulled from commercial VHF service and were tested OKay for filament current at rated filament voltage. They also pass 4100 volts hi-pot testing between anode and grid/cathode/filament. Finally, they were emission tested at two power levels (20 and 40 watt input) and are provided with test data at those points for grid and plate current and output power levels in grounded grid configuration. Outputs average 540 watts at 40 watt drive level.They were tested in the H.F. frequency range, but will likely function okay throughout their designed frequency range.
My price is $200 each or two for $375. Payment by check or postal money order. My offer is limited on quantity.
These tubes are great for amplifier testing, building and trouble shooting.
If you wish, you may contact me via eMail through this ad here on QTH.COM.
Thank you for reading may offering.q; Listing #1682284 - Submitted on 04/08/24 by Callsign K9AU - IP: 227-248-182-166.mobile.uscc.com; Click to Contact -- Send this Ad to a Friend
8122s for Sale: Pair of RCA 8122s condx unknown, came from an estate. $60 shipped CONUS; Listing #1682239 - Submitted on 04/08/24 by Callsign W3SOX - IP: c-73-64-254-201.hsd1.pa.comcast.net; Click to Contact -- Send this Ad to a Friend
FS: EIMAC 100TH VT218 TUBE: FS: ONE EIMAC 100TH / VT218 TUBE
Was a spare for an amp I use to have a long time ago. Very clean looking. Filament tests good. Power tested good when I had the amp. I sold the amp and kept this one which was to be used for a Ham shack display. I just like the looks of the 100TH. But the project never was done. Time to sell.
$50 shipped CONUS.
73, Fred KG9X; Listing #1680235 - Submitted on 03/23/24 by Callsign KG9X, Modified on 04/02/24 - IP: c-98-63-179-145.hsd1.il.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Wanted: DUD, 3-500zg tube, for ornamental use. Prefer clear, no smoked glass!; Listing #1681373 - Submitted on 04/02/24 by Callsign W4MCX - IP: c-71-196-121-166.hsd1.fl.comcast.net; Click to Contact -- Send this Ad to a Friend
NOS 4CX1500B for Alpha RF Amps VTX-X120: Two tested and NOT USED 4CX1500B tubes in original Alpha RF box.Zero Hours = N.O.S.are these at: https://www.alpharfsystems.com/?ec_store=pageid1519modelnumbervtx-x120
Asking $1,200 each for an 8406 or $2,000 for both to use in 8410, or swap for two N.O.S. Tested but NEVER USED 3CX800A7 tubes.
Free pickup near Denver, or add actual postage/shipping for elsewhere. Paypal OK if needed ASAP.Tube serial numbers EQS007B and FMP034B, date code 1523. ORIGINAL PAPERWORK INCLUDED.
BEWARE! Robert.gallahann at outlook.com is a SCAMMER in the NW. Do *NOT* pay them; These tubes are in Colorado.; Listing #1673980 - Submitted on 02/03/24 by Callsign AC0KC, Modified on 04/01/24 - IP: 193-65-42-72.skybeam.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FOR SALE: Chinese 572Bs: I have 2 Chinese 572B tubes, $35ea, shipped free in the USA. (2 in the far right of the pic, the others have sold) WB4IUY at GMAIL.COM; Listing #1681148 - Submitted on 03/31/24 by Callsign WB4IUY, Web Site: http://www.WB4IUY.net - IP: 045-037-193-081.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend