QTH.COM Ham Radio Classified Ads: AMPHF - Swap amateur radio HF VHF equipment buy sell trade on line

AMERITRON ALS 600 SOLID S AS NEW..TRADE?: Hi, I have an Ameritron ALS 600 solid state HF amplifier.
I got it from an older ham that had purchased it new as a backup for his Alpha.
That day didn't come. So the amp and the power supply was put on the shelf. I got it and it truly is like brand new with no signs of use. This amp is no tune, you select the band you want and go.. Also, it has your back if you accidentally use too much exciter drive, or your swr is too high, it protects itself and in seconds with a flick of a switch your back on the air.. The amp comes in two units, the amp and the power supply.. This amp surpassed my expectations in operation and build quality as it really works very well.. No front panel peeling the cabinet is mint.. I am very meticulous about my equipment and keep it covered when not in use. IT'S IMMACULATE... 1,200...with no regrets. also will entertain trades for Flex, amps, hf radios...TRADE TRADE TRADE, what do you have? thanks 73 de w8nvc; Listing #1750282 - Submitted on 11/22/25 by Callsign W8NVC, Modified on 12/07/25 - IP: ip174-66-201-198.cl.ri.cox.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: 30L-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 #1744063 - Submitted on 09/24/25 by Callsign K6HM, Modified on 12/06/25 - IP: 75-37-192-218.lightspeed.lsatca.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
For Sale: Alpha 87A HF Amplifier: Alpha 87A HF Auto-tune amplifier in excellent condition. 1.8 to 29.7 MHz. Full power with 2 - 3cx8007 tubes.
Latest firmware updates. $3300. Comes with original shipping carton and manual. From nonsmoking environment. Can be picked up in Inverness Florida, or shipped if buyer pays shipping, or it's possible to bring it to the Tampa hamfest in Plant City on Dec.12th or 13th.; Listing #1751968 - Submitted on 12/06/25 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
For Sale: SPE Expert 2K-FA: SPE Expert Model 2K-FA amplifier with internal tuner. S/N 16240096.
Fully tested and verified for proper operation on all three power settings. Comes with original canvas storage bag.
$5,000 shipped any location in USA.
Photos provided upon request.; Listing #1751965 - Submitted on 12/06/25 by Callsign KF6I, Web Site: http://www,islandamplifier.com - IP: 28.sub-97-170-117.myvzw.com; Click to Contact -- Send this Ad to a Friend
FS: OM Power OM4000A: Selling my OM4000A as solid state amps better suite my operating style.
The OM4000A is just back from OM Power's U.S. service center, and has had two new tubes matched by OM Power installed. It is in excellent condition with now scratches or other issues. Inside, it is bright and shiny, and is a joy to look at.
To give you a sense of the overhead this amp has, into my Alpha 2000 dummy load, I measured the following with an LP-700 wattmeter:
160m 9.1 in/801 out 13 in/1299 out / 17.1 in / 19.5 out / 25.1 in / 3268 out
10m: 12.5 watts in/2012 watts out.
Included with the amp is the OM4000A remote control unit, which allows you to turn it on/off, put it in standby/online, and also displays the power. Additionally, there is an embroidered cover to keep it dust-free. The original box and packing materials are included also.
$6300 - get it before the tariffs kick in. An OM4001A+ (the successor to the OM4000A) is currently $10,999.99 DXE.
Thanks!; Listing #1738827 - Submitted on 08/07/25 by Callsign NN4X, Modified on 12/06/25 - IP: fl-71-52-107-241.dhcp.embarqhsd.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Gates / Harris HFL-3000 HF Amplifier: 3 KW Commercial grade amplifier, manufactured approx. mid 60's. Was modified to run single phase 220V. Tube is a 4CX3000 and tested
good, last run this amp produced 2.5-3 KW key down continuous.
Comes with all documentation, operations, and schematics from Gates.
Specs are available on line.
Always kept indoors, non smoking environment.
As is condition, no warranty, local pick up only 4,200.00
E-Mail for more photos; Listing #1751279 - Submitted on 11/30/25 by Callsign KC3JDL, Modified on 12/04/25 - IP: pool-108-16-237-14.phlapa.fios.verizon.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
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
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