Free Ham Radio Classified Ads
Ham Radio Classified Ads
A Free Service by KA9FOX & QTH.com

Classifieds Home - Feedback Forum - Swap Chat Board - Safe Trading Tips
Search Ads - Place Ad - Edit Ad - Delete Ad - Callsign Lookup - Make Donation
Contact KA9FOX - Banner Advertising - Web Hosting - Ham Radio Homes

Full Color Photo QSL cards from KB3IFH
View All Banners     Advertise Here

HF Amplifiers

Displaying ads 1 to 10 of 231 ads in this category.
= Photo available, click to view      = Ad was Edited or Renewed      = Original Ad
KA9FOX Wishlist on Amazon.com

 FOR SALE: Collins 30S-1  

Full power out. Works great.
Front panel is in nice shape.
Some minor scratches on cabinet.
Refurbished with Reliable Long Life Caps.

Extra Tubes:
Five extra 4CX1000A medical pulls with low hours.
As many as you want for $100/each if you buy the amp.

Sold AS-IS but Guaranteed to work upon delivery.
LOCAL PICKUP ONLY. SW side of Milwaukee.
$1200 or best offer.

Sincerely,
W9XZ


Listing #1751587 - Submitted on 12/03/25 by Callsign W9XZ - IP: syn-173-089-041-098.res.spectrum.com
Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend

 ALPHA HF AMP. MANUAL OR NO-TUNE  
ALPHA 78 HF AMP. REMOVED FROM SK STATION SET-UP. NON-SMOKER. WAS ABLE TO PLUG IN AND IT POWERS UP. WIRED FOE 220. NO OTHER TESTING WAS DONE. SELLING FOR SK's WIDOW.
$1300.00 OR BEST OFFER. PICK-UP NEAR WAC0, TX.


Listing #1751557 - Submitted on 12/03/25 by Callsign AA5RT - IP: syn-192-063-043-055.res.spectrum.com
Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend

 Alpha 8410 HF Amplifier   
For sale. Excellent condition. Alpha 8410 HF amplifier with manual and original Shipping carton. $3500. Covers 1.8 through 29.7 MHz. Has two new Eimac 4cx1500B tubes. From non-smoking environment. Wired for 240. Can be picked up in Inverness florida, buyer can pay shipping if they want it shipped, or Arrangements can be made to pick it up at the Tampa hamfest in Plant City December 12th or 13th.

Listing #1751542 - Submitted on 12/03/25 by Callsign AD4LE - IP: fl-67-232-190-66.dhcp.embarqhsd.net
Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend

 ACOM 1000 HF AMP FS!
Acom 1000 HF/6 meter amp for sale. Amp is in excellent condition. Due to lack of use I would like to sell...I just don't use it anymore. 40-50 watts in will produce at least 1K output. Would have to be picked up in southwest Missouri. $2,800....
Tnx,
Tom


Listing #1751541 - Submitted on 12/03/25 by Callsign W0BNE - IP: host-67-44-176-31.hnremote.net
Click to Contact -- Send this Ad to a Friend

 Mercury 3s iiis New old stock  
Purchased the amp new 1/08/22 I opened the box but never removed the amp. This is the one that has to be assembled. Never attempted. Literally new old stock. I purchased new from KM3KM. No trades cash, PayPal, cash app $2700 Thank you. Mike Trammell KE5KE. Call or text 318-691-2022

Listing #1751034 - Submitted on 11/28/25 by Callsign KE5KE, Modified on 12/02/25 - IP: 47.209.245.92
Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend

 For Sale Alpha 87A - $3000 - no shipping  
Alpha 87A - Legal limit HF amp. Excellent Condition. Serviced by Richard Byrd (N4UQ) in 2023. new transmit and receive PIN diodes. Complete service records available upon request. Minimal use since returning from service.
Priced FIRM at $3000 - No refunds due to parts swappers.
Serious inquiries only please.


Listing #1751488 - Submitted on 12/02/25 by Callsign N9FME - IP: 136.226.12.89
Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend

 Ameritron 811H Amplifier   
Ameritron 811H Amplifier In good condition and operating as it should. $700.00 plus $120.00 Shipping.

Listing #1751479 - Submitted on 12/02/25 by Callsign N0ARX - IP: 38.62.162.50
Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend

 12ea MRF300BN brand new in tube
These are brand new NXP/Freescale RF power transistors. They are N channel mosfets with incredible return loss rating, gain structure and ruggedness. Amazing power capability, many amplifiers and kits use them. I have 12 devices in the tube, sell or trade for something of similar ask value. Alinco SR8 in similar condition? Benjamin/Sheridan silver streak with teeter totter safety? email only please. I can send pictures if interested. $400 for all 12 parts.

Listing #1751466 - Submitted on 12/02/25 by Callsign K5NJP - IP: 163.116.135.158.netskope-rdns.com
Click to Contact -- Send this Ad to a Friend

 WTD: INFO ON AMERITRON ALS-606 AMPLIFIER
The PA board part number B862-1300-PAREV6 causes the 50 volt P S to shutdown it will not power up with 50 volts applying to the PA board.
When I remove the red wire connecting to PA board it turns on.
Has anyone experience this problem and found the cause.
I thinking the FET's are bad transistors.
I would appreciate and help or if you have had same problem.
Thanks
Earl WA0ELW


Listing #1751444 - Submitted on 12/02/25 by Callsign WA0ELW - IP: 16.sub-174-213-251.myvzw.com
Click to Contact -- Send this Ad to a Friend

 For Sale : High Voltage (Plate) Xformer  
High Voltage (Plate) Transformer For Sale: 208 - 240 VAC in, 2500 VAC at 240 in. 125 in gives 1400 out. Not sure of current but at least 1A, pictures on request of it running my 2 X 3-500z amp with ease.
$200 cash only , pick-up only or deliver / meet within 75 miles of my QTH (Rosendale NY) for extra $35. Bob W2XL NO TEXTS.


Listing #1750291 - Submitted on 11/22/25 by Callsign W2XL, Modified on 12/02/25 - IP: syn-024-161-103-023.res.spectrum.com
Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend


Next 10 AdsNext

Elecraft KX3 Heatsink / 14 volt 4 Amp Clean DC Power Supply
View All Banners     Advertise Here

Classifieds Home - Feedback Forum - Swap Chat Board - Safe Trading Tips
Search Ads - Place Ad - Edit Ad - Delete Ad - Callsign Lookup - Make Donation
Contact KA9FOX - Banner Advertising - Web Hosting - Ham Radio Homes

© 2025. The QTH.com Ham Radio Classified Ads website is Created and Maintained by Scott Neader, KA9FOX.

6.1319 ms (0.0061 secs)

Free Ham Radio Classified Ads

Uh oh! It looks like you’re using an ad blocker.

Banner Advertising, along with Donations, keeps the QTH.com Classifieds free to use for everyone.
Please support the QTH.com Classifieds by allowing ads to be displayed. Here is how!

Or, for now, you may continue to use this site without unblocking ads.