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RF Parts - Large inventory of parts for Amateur Radio, Commercial and Broadcast Communications Equipment
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HF Amplifiers

Displaying ads 11 to 20 of 220 ads in this category.
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 Need Plate Tuning Cap Delcon T210
Lookig for the above
Tnx!
KL7AM


Listing #1761365 - Submitted on 03/08/26 by Callsign KL7AM, Modified on 03/14/26, Web Site: https://kl7am.com/ - IP: 238-196-137-216.mtaonline.net
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 FOR SALE - Drake L4B and L4   
For Sale - Drake L4B Amplifier and L4 Power Supply $1,200
Both in excellent condition and working perfectly.
1,200 watts output with 100 watts drive.
L4B - Good 3-500ZG tubes, blue LED meter lights, all original-no modifications, send control 12 volts at 10 ma via RCA jack.
L4 - Harbach soft start modification and documentation, new capacitors and boards, quiet cooling fans mounted on cover.
Original Users Manual
Prefer local pick-up near Allentown PA or will drive 100 miles to meet
for delivery. Shipping at buyers expense. Sold as is due to age of electronics, no return available.


Listing #1761927 - Submitted on 03/14/26 by Callsign W3RJ - IP: 24.115.195.165.res-cmts.bgr.ptd.net
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 NCL 2000 1300W HF Amplifier  
Delivers 2000W PEP input or 1300W output from 10-80m. Designed to deliver max power out on 120 or 240v! Uses 2 economical $100 tubes.
Just $599. Local pickup preferred. Shipping extra. Can deliver to Sacramento, SF, SJ, or Reno.


Listing #1761925 - Submitted on 03/14/26 by Callsign K1FIE - IP: c-50-189-24-238.unallocated.comcastbusiness.net
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 For Sale: Icom PW1 Power Supply  
For Sale: Complete and working power supply module for an Icom PW1 amplifier. The supply was removed from a working PW1 whose PA transistors had failed. The original fan has been replaced by a quiet Noctua fan. Includes long line cord with 20A 240 volt plug. Ready to install in your PW1. $495 plus shipping via Pirateship. Pay via Paypal, Venmo or USPS Money Order.

Listing #1761354 - Submitted on 03/08/26 by Callsign K8AC, Modified on 03/13/26 - IP: 69-77-149-232.skybest.com
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 FS: 30L-1 amplifier PS & relay board   
FSL-1 amplifier PS & relay board
Be ware of cheap off-shore copy version at some auction sites. The made in China copy version selling higher than my price.Choose the original since 2007. The best reputation 30L-1 power supply board for $75 Plus $13 for USPS priority mail.Board uses 1000V 3A diodes in series, and 105 deg C caps, 4 times of life compared to 85deg C caps, 220 uF 6 of them. The Heat sensitive caps are under pc board while the Heat generating bleeder resistors are above the PCB, no chance that Heat damage the capacitors. assembled and tested. Relay board changes original -170V, 70mA to -15V 1mA or less. If you use relay controlled radio for the 30L-1, Relay board is a must.Price $30, Ripple filter for relay and bias22uF 250V and 1K ohm .01 uF 630V reduction high 60hz ripple bias supply & another 22uf Bias cap & MOV protection.


Listing #1756008 - Submitted on 01/17/26 by Callsign K6HM, Modified on 03/13/26 - IP: 75-37-192-218.lightspeed.lsatca.sbcglobal.net
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 RF2k-S Upgraded Linear Amplifier – Mint  
Upgraded RF2k-S linear amplifier that is in "like-new" condition.
.
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.
.
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.
.
Whisper Quiet: Modified with high-end Noctua fans, making it virtually silent during operation.
.
Performance: Reliable, high-power performance LDMOS Legal Limit+ CVAT control including remote software. Silent/fast Pin diode switching.
.
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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 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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