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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 215 ads in this category.
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 ltb busted amp in Michigan
Im looking for a broken hf amp in Michigan or northern Indiana that I can pick up. I need it for a science experiment Thanks

Listing #1766308 - Submitted on 04/27/26 by Callsign W7GS - IP: c-68-56-222-190.hsd1.mi.comcast.net
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 FS: RM Italy HLA-300 Linear Amplifier
This is the RM Italy’s HLA-300 Amplifier
The HLA-300 is an HF all band covering 10-160 meters.
1 to 20 watts in output up to 280 watts.
Amplifier is in very good working and cosmetic order.
Photos on request.
Please, I am not interested in trades. $600 shipped to the lower 48.
I prefer Zelle but will take Paypal or money order.
73 Carl AF9L


Listing #1766303 - Submitted on 04/27/26 by Callsign AF9L - IP: h69-131-47-184.wtfrwi.broadband.dynamic.tds.net
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 Kenwood TL-922A Linear Amplifier  
***SALE PENDING***
Kenwood TL-922A HF linear amplifier.
160-15 meters.
Two Eimac 3-500Z tubes.
Wired for 240 volts.
Just out of long term storage. Checks out okay.
No modifications.
Excellent condition inside and out.
The inside looks like new, barely any dust.
Used very sparingly if at all by previous (original) owner.
Includes original shipping carton.
$975 pick up only or will meet a reasonable distance.


Listing #1763517 - Submitted on 03/29/26 by Callsign W9RAD, Modified on 04/27/26 - IP: syn-072-135-231-114.res.spectrum.com
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 Alpha 8410   
I have an Alpha 8410 in like new condition with the 4cx1500B tubes. Included is the factory manual with the factory test report and schematics. Embroidered cover is also included. It is like new inside and out. The cathode resistors were recently replaced per Alpha’s spec. Screen voltage and bias have all been verified and 100% operational.
$3500 or will trade up towards a nice Alpha 77 2 hole amp.


Listing #1765824 - Submitted on 04/23/26 by Callsign W4EKY, Modified on 04/27/26 - IP: 198.185.190.102
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 Elecraft KPA1500 display with WiFi  

KPA1500 RF Power Monitor

See everything your KPA1500 is doing — at a glance. This plug-and-play OLED display connects to your amplifier's RS-232 port and shows forward power, reflected power, dissipated power, input drive, SWR, PA voltage, PA current, and heat sink temperature in real time. No modifications. No drivers. Just plug in and go.

The crisp 256×64 OLED display uses a clean 3×2 grid with proportional bar graphs and large, easy-to-read numerals — designed with older eyes in mind. Peak power is held for instant readability.

Bonus WiFi web interface — monitor and fully control your KPA1500 from any browser on your network. Change bands, switch antennas, tune the ATU, toggle Operate/Standby, and clear faults remotely. Works great with Tailscale for shack access from anywhere.

Built on the XIAO ESP32C6 with browser-based OTA firmware updates.


$239.99 plus $10 shipping PP




Listing #1765489 - Submitted on 04/19/26 by Callsign KV5J, Modified on 04/27/26, Web Site: http://www.kv5j.com - IP: mobile-107-77-196-63.mobile.att.net
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 WTB: Acom 1000 amp for 120 AC, VG.
I am looking for a very good Acom 1000 wired for 120VAC. No issues. Photos appreciated.

Listing #1766291 - Submitted on 04/27/26 by Callsign K6RQR - IP: 24-113-172-138.wavecable.com
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 Yaesu FL-7000 HF Amplifier For Sale  

Yaesu FL-7000 HF Amplifier For Sale:
-
The Yaesu FL-7000 is a completely solid
state HF amplifier covering 160 thru 10
meters, including the WARC bands. It
includes a very heavy duty power supply
in it, operating the final transistors
at 48 Volts DC.
-
It has two very large fans that provide
plenty of cooling and are relatively quiet.
-
Although it has an automatic antenna tuner
built in, it is recommended that the tuner
NOT be used.
-
It does operate full break in (QSK) on CW.
-
Cosmetically, it is very good. It does have
a couple very, very, very minor scratches
that you can find if you look just right.
-
Electrically, it produces full power, and
works as it should.
-
This amp is a brute, which means it is very
heavy -- 66 pounds before packing for shipping.
That means that pickup near Ocala, FL is very
desirable, but I can ship it if you are willing
to pay the price.
-
I would like $1200 for it.-
-
Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.


Listing #1766283 - Submitted on 04/27/26 by Callsign W8EK - IP: customer.mmmiflx1.isp.starlink.com
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 Alpha 77sx Faceplate & Side Panels   
Here is a new set of Alpha 77sx faceplates, side and top covers.
Black, with white silk screen printed. Produced by Island Amp as replacements.
I had bought these as a replacement when my original silk screen had started to flake off, but decided to remove the original silk and laser engrave the labels back on the faceplate. Not going to use these and as rare as they are I would like someone to put them to use!
$650 Shipped USA
PayPal G&S
N9JOE


Listing #1766277 - Submitted on 04/27/26 by Callsign N9JOE - IP: 75.109.179.141
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 Ameritron AL-811 600-watts HF amp  
I have for sale this nice working 600-watts 160-10m AL-811 amplifier.
Price is $550
Prefer local pickup.


Listing #1766276 - Submitted on 04/27/26 by Callsign K2ZZ - IP: 104.28.172.150
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 WTB: TT 425 Titan 81212/81211 PS Boards  
Wanted: Dead or alive. Let me know what you have and condition please.
TNX,
Cliff W4NJ


Listing #1766268 - Submitted on 04/27/26 by Callsign W4NJ - IP: 172.56.100.48
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