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SPE Expert Fully Automatic Amplifiers In Stock at MTC Main Trading Company
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HF Amplifiers

Displaying ads 1 to 10 of 212 ads in this category.
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 Kenwood SM 220 station monitor
Kenwood SM 220 station monitor in working condition screen has nice bright tube this is from a none smoking residence it works as it should just don't use it any more time for some one else to enjoy it.
This unit comes with the owners manual and power cord asking $350.00 + shipping will double box and well pack this unit well. I will take money order or pay pal or personal check and will ship wince the funds clear and will send tracking number when it ships.This unit is in nice condition no dings or scratches it just needs a new home I am down sizing ham shack that's the reason were selling it.


Listing #1763793 - Submitted on 04/01/26 by Callsign KI0NN, Modified on 04/09/26 - IP: 198.242.36.8.nex-tech.com
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 For Sale: ACOM 1200S amp and 06AT Tuner  
Bought these from DXE in October 2025. Paid upwards of $5700 for this amp and tuner, with the sales taxes added in. Will include the original sales receipt in the box. Wired for 220v but easy to change to 110v with 500w max out.
Amp and tuner work exceptionally well together. The tuner has 4 antenna outputs, each of which has its own set of memories. With the proper interface cable, band and frequency changes track the radio instantaneously if the segment has already been tuned and stored. Will include the DXE branded Icom interface cable (a $55 value). Drive from 25-35W, depending on band, produces a full KW with no strain at all.
Priced to sell quickly at $4150 shipped CONUS for the set.
Local pickup save $150.00. Zelle, Venmo, PayPal (+3%), or personal check after fully clearing my bank all fine.


Listing #1764473 - Submitted on 04/08/26 by Callsign AB1JV, Modified on 04/09/26 - IP: pool-74-97-42-179.prvdri.fios.verizon.net
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 SPE 2K-FA V2, Drake L7, Belton Hamfest
SPE 2K-FA / $4K (on hold till Saturday at 900 AM)
Drake L7, power supply has new filter board/ $1100
Collins S Line/ $775 (on hold till Saturday at 900AM)
Kenwood TS 520SE with desk microphone $275
Ten Tec Omni VII plus extras/ $775
MeterBuilder HF meter with extras $450.00
Everything is in excellent to pristine condition.
For reference check my callsign (N5QVF) under Keys and Paddles.
I really do not want to ship. Shipping is high and also risk damage
My stuff is pristine. Come by the Belton Hamfest. I WILL BE THERE TOMMORROW AFTER LUNCH. Tnx


Listing #1758510 - Submitted on 02/09/26 by Callsign N5QVF, Modified on 04/09/26 - IP: 47.221.229.109
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 Mercury Lux HF Amp. Excellent Condition  
Mercury Lux Amplifier
Bought 2 years ago.
Works and looks excellent. Non smoker.
Have original boxes.
Price 3500.00. Firm……prefer local pick up.
Will ship at buyers expense. I ship ups and postal money order only.
Rich KF2GG


Listing #1764195 - Submitted on 04/05/26 by Callsign KF2GG, Modified on 04/09/26 - IP: pool-100-1-8-65.nwrknj.fios.verizon.net
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 Sell: HV capacitor board for AL-82  
This is the HV capacitor board from an Ameritron AL-82 amplifier. Uses 8 screw-mount capacitors but other mounting types could be used. Includes divider resistors that all measure within the original tolerance, and HV metering resistors. $15 plus mailing cost.

Listing #1764507 - Submitted on 04/09/26 by Callsign K8AC - IP: 69-77-149-232.skybest.com
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 Sell: HV rectifier board for amplifier  
This is the high voltage rectifier board for an Ameritron AL-82 amplifier. It's a bridge configuration with 5 1N5408 diodes per leg, bypassed with 1KV .01 disc capacitors. Removed from a working amp and works as it should. The DC output voltage of the AL-82 supply is approximately 3700V. $12 plus mailing cost.

Listing #1764505 - Submitted on 04/09/26 by Callsign K8AC - IP: 69-77-149-232.skybest.com
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 WTB: 2 Eimac 4CX-1000A tubes  
I'm looking to buy two full output 4cx-1000A tubes. Please send pictures and prices to email or text. Will only answer to replies through the QTH ad.
73's W4EKY


Listing #1764490 - Submitted on 04/09/26 by Callsign W4EKY - IP: 136.226.3.95
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 FS: ICOM PW2 1KW amplifier  
I have for sale this excellent condition working Icom PW2 1-KW SS amplifier. Comes with all cables and manual from manufacturer. Has factory box. Wired for 220v. Works fine on all bands
Will max at 500-watts if using it on 115v
price $4799


Listing #1763993 - Submitted on 04/03/26 by Callsign K2ZZ, Modified on 04/09/26 - IP: 185.195.59.14
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 XIEGU XPA125B Amplifier  
XIEGU XPA125B is a QRP solid state amplifier with built-in antenna tuner that covers 0.5 to 30 MHz and 50 to 54 MHz. This is as new and I am the original purchaser. Comes with box, original items and has the latest firmware installed. I played with it about an hour with the X6200 and G90 and it worked great. Now it sits on my radio "trophy" shelf like a lot of my whim purchases. This amplifier will work with most all QRP rigs via RF sensing with input of 5 watts for full output. Shipped double boxed lower 48 for $475 with payment via Venmo Friends, USPS money order or check.

Listing #1764301 - Submitted on 04/07/26 by Callsign AC4VM, Modified on 04/09/26 - IP: 99-140-116-7.lightspeed.knvltn.sbcglobal.net
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 I'm looking transformer for a 3-500z
"I'm looking to buy a transformer for a 3-500Z tube. Does anyone have one for sale or know where I can get one?"

Listing #1764443 - Submitted on 04/08/26 by Callsign NP4ET, Web Site: https://swrmagazine.org/ - IP: 70.35.140.254
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