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Momobeam ham radio antennas designed for performance and durability
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HF Amplifiers

Displaying ads 21 to 30 of 296 ads in this category.
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 For sale ETO Alpha 76c
I'm offering this almost brand new looking amplifier. This is the 3 tube version that electrically is 100% and a small smudge on the left side makes it 99.44% perfect visually. Comes with manual.
I bought it 7-8 years ago and was shipped with the transformer in it. This time the transformer will be removed and shipped separately.
This a great amplifier. 160-10 meters. 17 & 30 can also be easily tuned also, but NEVER use it on 12 as the plate choke will self resonate and burn up.
I'm asking $1250.00 plus shipping, OR, come to Buffalo NY to pick it up and catch a Bills game while in the area.
Email me and I can send you pictures


Listing #1742879 - Submitted on 09/12/25 by Callsign W2NK - IP: syn-069-204-043-202.res.spectrum.com
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 Larkin 1KW VHF amplifier
I have several Larkin VHF amplifiers they came from a Larkin TV transmitter it is in the 156.500 MHZ if you want a high power VHF amp to do EME or moon bounce this is your chance to own a commercial built amp.There is a lot of information on the internet on converting this amp and helping you get this amp down to the ham bands you will need a good capacitance meter to check the values of the capacitors you will be adding and replacing.You will need a 36-50 vdc power supply there available on E Bay and Amazon this unit measures 22"X15"x3" I am asking $250 + shipping I will except money orders and personal checks and will ship wince the funds clear the bank and will provide tracking numbers when it ships.

Listing #1742260 - Submitted on 09/06/25 by Callsign KI0NN, Modified on 09/12/25 - IP: 27.242.36.8.nex-tech.com
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 FOR SALE: ACOM 1500 Amplifier  
1500 watts SSB/CW on 160 through 6 meters. Three position antenna switch built in. Uses a 4CX1000 tube. Looks and works like new. Serial number: 140233. Price $2,200.00 includes shipping to the lower 48 states. Prefer payment via PayPal.

Listing #1742872 - Submitted on 09/12/25 by Callsign WB4OQX - IP: 38.62.136.129
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 KF8OD AMP  
amp has a pr of BLF188XRs , a 1500w filter board with a 40w drive it does 1300w on 160 , 80,40,20, and 1000 to 800 on the other bands . Has the W6PQL protection added since it was built by mike KF8OD, WILL TRIP OUT IF OVERDRIVEN AND IF IT SEES HIGH SWR . I can tell you more and send more pics if you want to msg or call 931 242 2510. ASKING $1900.00
73s AD4FL


Listing #1742856 - Submitted on 09/12/25 by Callsign AD4FL - IP: syn-047-226-211-191.res.spectrum.com
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 Expert 1K-FA Series 2  
Expert 1K-FA. Series 2. Capable of 1.2k on 120v. $2,600 (does not include shipping)
PayPal and Zelle accepted.
Text or call Scott at 210.725.1103


Listing #1742848 - Submitted on 09/11/25 by Callsign W5SLS - IP: 69-153-16-52.lightspeed.snantx.sbcglobal.net
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 Henry 3k Ultra amplifier  
3K ultra with remote control box and memory presets. You can locate the amp/power supply unit 30Ft away and control the entire amp from the console.
I just serviced the amp. Bleeder resistors replaced with factory parts, Low voltage power supply was rebuilt with caps and heavy duty resistor. Unit was cleaned. Blower oiled. Lamps replaced.
The control head had the Multi meter replaced with factory part. It was cleaned and lamps replaced.
The Tube is FULL power and will do 3000W out with a Collins S line as Drive. The amp is rated to run 1500W DATA 24/7 forever.
Pickup in PHOENIX ARIZONA.
$2800
w7wrx


Listing #1742832 - Submitted on 09/11/25 by Callsign W7WRX - IP: ip68-231-36-34.ph.ph.cox.net
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 al 1500 not mfj junk
ameritron al 1500 / full out put + has peter dahl transformer $1500.00 pick up . have boxes . if i would ship very expensive could not give price till in box , after received money for amp . 724 924 2902 would meet with in 100 miles not the mfj junk

Listing #1742367 - Submitted on 09/07/25 by Callsign KB3RSB, Modified on 09/11/25 - IP: dynamic-acs-24-144-188-91.zoominternet.net
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 MATCHED PAIR NOS GENERAL ELECT. 3-400Z  
MATCHED PAIR NEW OLD STOCK NEVER USED GENERAL ELECTRIC 8163 / 3-400Z TRIODE RF OUTPUT TUBES - POWER HOUSE TRANSMITTING TUBES - MADE IN THE USA GENERAL ELECTRIC QUALITY - NOT A CHINESE OFF-SHORE BRAND - NEW OLD STOCK - AS USED IN MANY OLDER TRANSMITTERS AND AMPLIFIERS - OPEN CARTON SERIAL NUMBER 08594 DATE CODED 7822.
ONE TUBE STILL IN THE FACTORY SEALED CARTON - I HAD TO OPEN THE OTHER CARTON FOR PHOTOS
PRICE: $299 PLUS $18. SHIPPING FOR BOTH TUBES. MORE PHOTOS AVAILABLE - JUST ASK.
JON
K1VVC


Listing #1742803 - Submitted on 09/11/25 by Callsign K1VVC - IP: syn-024-181-220-097.res.spectrum.com
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 Henry 2K HF Amplifier For Sale  

Henry 2K HF Amplifier For Sale:
-
The Henry 2K is a monster HF amplifier,
covering 80 thru 10 meters.
-
It uses a pair of Eimac 3-500 Z tubes,
to easily produce full legal limit (1500
Watts) with about 100 watts drive.
-
It is a single stage amplifier designed
for SSB, CW, FSK and AM operation. It is
a very, very rugged, heavy duty amplifier,
with an extremely rugged power supply,
with a huge power transformer, choke input
filter, and oil filled filter caps. At over
150 pounds this amplifier is "built like a
tank".
-
Of course all of this is in a very nice floor
console, with the power supply in the bottom
portion, and the RF portion in the top.
-
This one works like it should. With full
power out of the exciter, it produces
1650 watts into a dummy load.
-
Cosmetically it is very close to perfect.
I can not find a scratch or defect on it.
-
Buy it with manual for $1200.
-
Since it is 150 lbs, it is obviously
pick up only, near Ocala, FL.
-
Thanks. 73,
Ken Simpson, W8EK
352-732-8400
.


Listing #1742792 - Submitted on 09/11/25 by Callsign W8EK - IP: fl-67-76-85-5.sta.embarqhsd.net
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 FOR SALE: ACOM 2100A  
Sale pending. Outstanding quality amp. Covers 1.8 through 50 Mhz, and loafs along at 1500w output. Only issue I've had was the cover interlock switch which was easily replaced. To ship requires removing the power transformer, so to avoid that this is pick up only (near Phoenix, AZ). I used an SB220 for about 30 years, and it struggled to get 1200w out, so this has been a real joy. The tuning is quick and the circuit protection excellent. Can demonstrate on the air. After 60+ years in the hobby, it's time to downsize. New these are about $5400, asking $2700. Will meet half way up to 100 miles.

Listing #1741673 - Submitted on 09/01/25 by Callsign W7PV, Modified on 09/11/25 - IP: 38.188.154.27
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