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

FS: 275V regulator 4 516F-2 and PM-2 PS: Due to old 1956 design of 516F-2, or PM-2 power supply for Collins KWM-2 (A) or 32S series transmitters runs on 125V AC power Voltage, the 516F-2 supply should deliver 275V Low Volt becomes 330V Plus minus during receive mode of KWM-2(A), vacuum tubes get 330V which will shorten life of tubes and cause extreme hot temperatures affect other parts. KWM-2(A)and 32S series transmitter get lot of heat problems. I have a solution to keep the LV to exactly 275V either transmit or receive mode.Using 500V MOSFET and series of Zener regulators,LV is now tightly regulated which helps keep the VFO with no drift and no audio hum as it works as ripple filter.The board is 22mm x 30 mm by size, made with SMD components and can be fit to the sidewall of power supply. Price is $40 plus $6 for USPS. two or more it has to be shipped by priority, price is $13.check to my QRZ.com address.Other output V,150V or 250V or 300V if needed.; Listing #1732006 - Submitted on 06/06/25 by Callsign K6HM, Modified on 07/05/25 - 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; Drake PS-7 Power Supply: I have a nice condition Drake PS-7 DC Power Supply available for $150.00 Plus Shipping (32 LBS).Working fine with fan operational. includes manual Thanks, Al, W4TUK; Listing #1733938 - Submitted on 06/24/25 by Callsign W4TUK, Modified on 06/29/25 - IP: syn-065-035-240-130.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Radio Shack 20 Amp power supply: Excellent condition works as it should.too many items in the shack closet, time to clean it out.$50 plus shipping. Money order or check no PayPal.Sold as is no returns.; Listing #1734380 - Submitted on 06/28/25 by Callsign N7YLW - IP: h208-100-174-93.bendor.broadband.dynamic.tds.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
WANTED: HV Capacitors: I am looking for high voltage oil filled capacitors. Must be minimum 20uf at 3000 volts. More is better. Condition must be good. No dents, porcelain unbroken, and the price right. What do you have?
K4WGW; Listing #1734138 - Submitted on 06/25/25 by Callsign K4WGW - IP: kal-calix1-216-128-100-171.kalama.com; Click to Contact -- Send this Ad to a Friend
MFJ-1118 High Current DC Distribution: $65, $14.99 shipping lower 48
KI6IBH
I used this in my shack with a heavy duty Astron power supply(look at my other listings) - Both are way overkill for what I’m doing these days.
From the web:
The MFJ-1118 Deluxe High Current DC Distribution Bus is a versatile power supply distribution unit designed for ham and amateur radio enthusiasts. With its switchable outlets, users have the ability to power multiple devices without constantly plugging and unplugging them. The MFJ brand is known for quality and reliability, making this distribution bus a solid choice for any radio communication setup. Its universal compatibility ensures flexibility in powering a variety of equipment.
Kindly assure that this will suffice for your application - there are no returns.; Listing #1734013 - Submitted on 06/24/25 by Callsign KI6IBH - IP: 181.sub-174-238-2.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Icom PS-125 Power Supply: SOLD PENDING PAYMENT -
Have very clean Icom PS-125 power supply - has a couple of minor marks on the top of the cover but easily covered. Works perfect.
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$125 plus shipping CONUS $26
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NOTE: for more of my items put my call in SEARCH and click SEARCH.
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Payment via ZELLE, M.O. or personal check when clears.
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Thank you,
Tom Stack - WQ5J
tom.stack73 at yahoo.com
-; Listing #1733837 - Submitted on 06/23/25 by Callsign WQ5J, Modified on 06/24/25 - IP: 104-53-68-31.lightspeed.rcsntx.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
MFJ-1118 High Current DC Distribution: $65, $14.99 shipping lower 48
KI6IBH
I used this in my shack with a heavy duty Astron power supply(look at my other listings) - Both are way overkill for what I’m doing these days.
From the web:
The MFJ-1118 Deluxe High Current DC Distribution Bus is a versatile power supply distribution unit designed for ham and amateur radio enthusiasts. With its switchable outlets, users have the ability to power multiple devices without constantly plugging and unplugging them. The MFJ brand is known for quality and reliability, making this distribution bus a solid choice for any radio communication setup. Its universal compatibility ensures flexibility in powering a variety of equipment.
Kindly assure that this will suffice for your application - there are no returns.; Listing #1733471 - Submitted on 06/19/25 by Callsign KI6IBH - IP: 181.sub-174-238-2.myvzw.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend