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Momobeam ham radio antennas designed for performance and durability
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HF Amplifiers

Displaying ads 1 to 10 of 225 ads in this category.
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 WTB Icom PW1
I am looking for a late model PW1 that is up to date of firmware. Would be willing to pick up within 500 miles from 64772. Would want to see videos of power output. Must be from a non-smoking shack.

Listing #1761852 - Submitted on 03/13/26 by Callsign W0HL - IP: 24-35-229-222.fidnet.com
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 For Sale: Icom PW-1 solid state hf amp  
Icom PW-1 solid state 6-160 meter amplifier 1kw. Serial number # 2600. Used in non smoking shack and is in excellent condition! No scratches dents or dings. $1950 split shipping or $1700 picked up. SOLD PENDING FUNDS

Listing #1761778 - Submitted on 03/12/26 by Callsign KF8RU, Modified on 03/13/26 - IP: syn-097-094-073-062.res.spectrum.com
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 RF2k-S Upgraded Linear Amplifier – Mint  
Upgraded RF2k-S linear amplifier that is in "like-new" condition.
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Professional Build & Upgrade: Began life as a RF-Kit RF2K+ that was never used, it was fully upgraded to RF2K-S by Ed, W2PH, the authorized RF amp service center in Melbourne, Florida. Since then (for the last year) it has served as backup and has only been used a handful of times.
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The "S" Treatment: Upgraded with the full RF2k-S controller, tuner and internal components, bringing it to current RF2K-S specs, improved tuner and ability to upgrade firmware going forward.
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Whisper Quiet: Modified with high-end Noctua fans, making it virtually silent during operation.
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Performance: Reliable, high-power performance LDMOS Legal Limit+ CVAT control including remote software. Silent/fast Pin diode switching.
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This is a rare opportunity to own a like new unit that retails for over $6,000. Save $$ and skip the wait times for a new build. Price: $4,000 + shipping or pickup South Florida. Photos available.


Listing #1761614 - Submitted on 03/11/26 by Callsign W1MBB, Modified on 03/13/26 - IP: 23.124.38.7
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 Tokyo Hy-Power HL-200 BDX  

Selling Tokyo Hy-Power HL-200Bdx. 200 watts HF amplifier with control head. 3.5 - 29.7MHz of all HF bands MODE : SSB / CW / FM
DC Power : DC 13.8V 40A max
RF Drive Power : 10W/50W/100W at Manual switch select
RF Out : 200W OUT (10W, 50W, or 100W IN ) 100W OUT (5W IN). *300 - 350W+ OUT (15 - 20W IN. Running this amp at 350W is strongly discouraged. $850 shipped. PayPal or Zelle


Listing #1761808 - Submitted on 03/13/26 by Callsign WB1AFK - IP: mobile-107-77-225-65.mobile.att.net
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 Henry SS-750 RARE “Blue Face”  
Blue face is available as the yellow face one has sold. 12 volt, all HF band, near legal limit, Henry SS-750, mint condition, late model, extremely rare, “Blue Face Version”, Solid state RF power amplifier, utilizes Eight 2SC2879 transistors, designed for high power mobile or base station use. Covers 1.8 to 30 MHz (160m to 10m bands). Shown with 13.8 volts and 100 amp supply producing 850+ watts, drawing 100 Amps, 90 watts drive on 75 meters. Comes with matching Blue Face remote and as new remote cable. Only minor cosmetic flaw is a small bruise, lower left of the amp meter as shown. Some units, particularly those with blue faces, were considered experimental by the manufacturer and were not meant for wide sale $3000 shipped insured FedEx. Zelle or PayPal. Have several other photos

Listing #1761678 - Submitted on 03/11/26 by Callsign WB1AFK, Modified on 03/13/26 - IP: mobile-107-77-225-65.mobile.att.net
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 Amp Supply LK-450  
LK-450, great condition, works great, 900 Watts out, no QSK board. This is an oldy but a goodie. No returns, already had that great experience. $800 plus exact shipping, will be securely packaged. Venmo or paypal, local pickup and see it work available. Willing to meet within a reasonable distance.
So there are no surprises for you, the phone number is my second line, my PayPal address is different than this one, I don't use the public email for PayPal.
Thank You.


Listing #1761655 - Submitted on 03/11/26 by Callsign N5DIZ, Modified on 03/12/26 - IP: 173-31-20-67.client.mchsi.com
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 30W ShortWave Amplifier Board 3-28MHz  
Sale Pending
30W ShortWave Amplifier Board 3-28MHz CW SSB Linear RF POWER Amplifier HF radio HAM short wave station 7M 13.56M RFID Signal
Product sellpoints
Automatic Switchover:Features automatic switchover for optimal performance in various conditions.
Compact Design:60x100mm PCB with a lightweight build, perfect for DIY enthusiasts.
Compact Design:At 60x100mm, this amplifier board is a space-saving solution for DIY projects.
Efficient Power Consumption:Operates on a low 0.1-3W input power, offering efficient power usage.
Efficient Power Supply:Optimized for DC 12-13.8V, ensuring stable operation with low current draw.
brand new unused, $40 shipped, PayPal ok


Listing #1760710 - Submitted on 03/02/26 by Callsign K7IEU, Modified on 03/12/26 - IP: c-73-225-151-127.hsd1.wa.comcast.net
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 XEIGO XPA 125B
XEIGO XPA-125B Linear Amp
5 watts in 100 Out
Solid State, great to add to your POTA gear.
Includes all the factory cords.
$ 400- Shipped CON US only


Listing #1761787 - Submitted on 03/12/26 by Callsign KB1DJ - IP: ip70-181-59-10.ri.ri.cox.net
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 **KPA500 RF Power Monitor/WiFi remote**  
**KPA500 RF Power Monitor**

*Real-time monitoring for Elecraft KPA500 owners*

Six critical parameters — Power, Voltage, Current, SWR, Temperature, and Band — displayed simultaneously on a high-contrast 256×64 OLED. No menu cycling. No squinting. 10 updates per second.
Built-in WiFi streams live data to any smartphone, tablet, or browser — no app required. One-time 5-minute setup. Access locally via *kpa500.local* or remotely via Tailscale from anywhere in the world.

✦ 500ms intelligent peak hold on power output
✦ WebSocket web interface with retro terminal aesthetic
✦ Remote Power ON/OFF and Operate/Standby control
✦ Over-the-air firmware updates
✦ OLED works independently of WiFi — always
Plug-and-play RS-232 connection. No amplifier modifications. Assembled and tested. Cables included.

**4″ × 2″ × 4″ · 9–14.8V DC · 100mA**

*Built by hams, for hams.*

---$199 plus $10 shipping



Listing #1761436 - Submitted on 03/09/26 by Callsign KV5J, Modified on 03/12/26, Web Site: http://www.kv5j.com - IP: customer.mmmiflx1.isp.starlink.com
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 For Sale: SPE Expert 2K-FA 2nd Edition  
I have an absolutely immaculate SPE Expert 2K-FA Amplifier for sale. It is 99.9% perfect physical condition with only one very light 1/2 inch surface scratch on the left side (only the camera can see it). The amplifier is in perfect condition electronically.
Comes with cable set from Dan Tassel for the Icom IC-7610.
Power output is as follows:
Low 500 watt
Med 1100-1200 watt
High 1500-1700 watt
All power measurements were done with a NIST calibrated LP-500, and a 50 ohm dummy load.
This has been extremely well cared for, always have used ALC to ensure that it has never been over driven.
Selling it is because I Inherited my dad's Amp, a OM2000A+.
Asking $4999 shipped, New they are $7995 +tax, this is a very good deal. The price is firm.
I will accept PayPal, please include 3% to cover the fees, or I accept Zelle, or Check (must clear before shipping)
More pictures are available upon request.
Manual and box included.


Listing #1761182 - Submitted on 03/07/26 by Callsign K4PRO, Modified on 03/12/26 - IP: 47-202-15-52.fdr01.ssds.fl.ip.frontiernet.net
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