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HF Amplifiers

Displaying ads 91 to 100 of 216 ads in this category.
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 FS Heathkit SB-220 AMP  
Excellent condition. Harbach mods:Power Supply, metering board, soft start, soft key, fan,directly grounded grids.Strong set of Eimac 3-500z full power tubes.New front panel,beautiful painted cabinet.Pick up only, northwestern NJ. 08865 $1000. Firm. WD2AFJ

Listing #1766076 - Submitted on 04/25/26 by Callsign WD2AFJ, Modified on 04/25/26 - IP: 24.229.160.241.res-cmts.sm3.ptd.net
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 Need a fuction switch for a Icom a IC-2K
NEED A FUNCTION SWITCH IC-2KL

Listing #1766090 - Submitted on 04/25/26 by Callsign W4CJM - IP: syn-024-088-165-015.res.spectrum.com
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 Ten Tec Hercules ii 420
Looking for a Ten Tec Hercules ii. Would like to find one with original power supply. A remote and manual would be nice. I know its a long shot, but one never knows unless one tries.

Listing #1766067 - Submitted on 04/25/26 by Callsign K2SH - IP: pool-72-88-32-130.bflony.east.verizon.net
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 FS: HAM LAMP WITH EIMAC 304TL TUBE   
For Sale: Nice Ham Radio Lamp on walnut base. See photo.
Great addition to your Shack!!
Comes with High Power tube 304TL; see photo for example.
But it shows Leakage with 1kV test.
Comes with a new black fabric shade. Shade is proper size for the tube.
The wood base is also new and finished with 2 coats of Spar Varnish.
It has been accurately drilled for the Jumbo 4 pin tubes like this one.
The base has felt pads to protect equipment and tables.
New Lamp socket is standard Edison base with new LED bulb.
Will include a laminated label with your Callsign for the base, if you like.
Email me for more photos.
Will be well protected.
$59.00 plus $13.00 shipping in the CONUS.
If you do not need the tube, you can have the rest for $45.00 shipped.
(I will do the Base for the 304 type or the EIMAC 3-500/4-400 5 pin Jumbo.)
USPS MO, your check or PayPal to: jtg4300 at yahoo.com
See my Feedback


Listing #1765132 - Submitted on 04/16/26 by Callsign WA1BRI, Modified on 04/25/26 - IP: 47-199-186-130.fdr01.stgr.fl.ip.frontiernet.net
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 Tl922 by me Amprepairguy   
New Harbach filter cap board with Kemet screw in type caps, New Harbach t/r bias relay board, grids grounded , meter protection diode , series glitch for plate supply, new max gain systems Teflon so-239’s, new electrolytic cap for 120 vdc relay supply , low inductance stability mods , rotary contacts cleaned , 10 meter mod already installed by another
3k no tubes 3500 with a new set of white base penta tubes drop shipped to buyer from penta
Buyer pays packing and shipping on amp
Bank teller check or money orders. If close enough can pick up and pay cash but must pay ct sales tax. Video on YouTube plus will supply video of working on one band of choice
I have two avaliable
Amprepairguy / Harbach electronics


Listing #1766050 - Submitted on 04/25/26 by Callsign KB1SEL - IP: c-75-68-69-15.hsd1.ct.comcast.net
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 Al1200/al1500/al82 band switch new   
Incredibly rare new never used al1500,al1200,al82 band switch
650 shipped
Bank teller check / us postal money order
Last one
Amprepairguy / Harbach electronics


Listing #1766048 - Submitted on 04/25/26 by Callsign KB1SEL - IP: c-75-68-69-15.hsd1.ct.comcast.net
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 WTB Kenwood TL-922a
Looking for a Kenwood TL-922a in New England area. Would be in person sale. Must perform a working demonstration and don't want an amp with scuffs/blemishes. Would have to allow a thorough internal inspection. I don't want to have an amp shipped to me. I live in MA - willing to drive to ME,NH,VT,NJ,CT or PA for the right deal.

Listing #1765936 - Submitted on 04/24/26 by Callsign KC1TQN - IP: 199.180.213.74
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 WTB: DUD 4-400, 3-500 OR SIMILAR TUBES   
WANTED FOR PROJECT;
BURNED OUT, OPEN FILAMENT OR GASSY 5 PIN POWER TUBES LIKE THE 4-400, 3-500, 5867 OR SIMILAR TUBES. 304TL/H 4 PIN TUBES ALSO NEEDED.
Can do a check, USPS MO or PayPal.
If you are going to TARC this Saturday, bring some DUDS!!! Thank you.
Prefer local sale since shipping is so high, but ship is OK.
Check out my items and very good Feedback, too!
email to jtg4300 at yahoo.com
73, WA1BRI
J. Griffin


Listing #1765492 - Submitted on 04/19/26 by Callsign WA1BRI, Modified on 04/24/26 - IP: 47-199-186-130.fdr01.stgr.fl.ip.frontiernet.net
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 FOR SALE: OM-2000A+ W/ Spare Tube  
OM Power OM-2000A+ HF Plus 6 Meter 1,500W+ Auto Tune Linear Amplifier. This AMP is used on my Back Up Station and it is time to downsize. AMP works fine and will include Manual and Spare Tube. Spare Tube is Used but with plenty of life on it. Most Hours are in Standby Mode and NOT Operational. Serial Number 17016. Software Version: 5.37, Tube Serial Number: 2201025. Wired for 240 VAC with Plug. Will NOT Ship but will meet any and all buyers in the Florida, Georgia and Alabama Areas. Price $4000 Firm

Listing #1762889 - Submitted on 03/23/26 by Callsign N4RWG, Modified on 04/23/26, Web Site: https://www.qrz.com/db/N4RWG - IP: 72.15.135.59
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 FOR SALE: SB-220/221 Multimeter  
Monitors Plate Voltage, Grid Current, and Relative Power. This meter could possibly fit other Heathkit models. It's in pretty good condition with some light scuffing on the lens. It comes with the original box as packed in the container from Heath. Asking price is $55 shipped. For more information, please reply via email or phone calls only, no texting.. Thanks, Nick Gans KM5FL

Listing #1762194 - Submitted on 03/16/26 by Callsign KM5FL, Modified on 04/23/26 - IP: h23.37.141.67.dynamic.ip.windstream.net
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