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

Drake L4-B with power supply: The Museum of Radio and Technology in Huntington, West Virginia is offering for sale this Drake L4-B amplifier with power supply. This HF amplifier is not without issues however, specifically with the power supply. The high voltage is approximately half of what it should be. We verified this by swapping the power supply with another one that we have.
The filter capacitors in the power supply appear to be original so we suspect them to be the culprit. Otherwise the L4-B appears to work. Putting out 600 watts in tune mode on 40 meters using the defective power supply. The amplifier tuned up easily even with the low high voltage reading on the the meter.
We are asking $890.00 for the amplifier as is. The asking price does not include shipping. Pickup at the museum is preferred. Shipping would be at the buyers expense and would only be to the contiguous 48 states in the US. Please direct any questions to our email; mratwv at gmail.com; Listing #1752226 - Submitted on 12/09/25 by Callsign WV8MRT - IP: 50-110-5-175.adr01.chtn.wv.ip.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
WANTED: jrc2000f Solid State Amp Remote: Foranyone with one of these amps. I lost my Remote and need codes for the infrared Remote. If you have one and will dump the codes onto my learning remote, I will pay you for your time. It just involves pushing the Remote next to the learning remote I send you. Contact me for details. N5JSP and W1JSP
73; Listing #1752184 - Submitted on 12/08/25 by Callsign N5JSP - IP: 145.79.196.197; Click to Contact -- Send this Ad to a Friend
3 D&A RAIDER AMPLIFIERS: 3 D&A RAIDER AMPLIFIERS, all three work, some tubes weak, $150 each shipped or $450 all three shipped conus zelle only; Listing #1752003 - Submitted on 12/07/25 by Callsign KC4MCQ, Web Site: https://www.qrz.com/db/KC4MCQ - IP: syn-142-197-197-138.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
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
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