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

LDMOS AMP (OR BENCH) POWER SUPPLY 45V!: Perfect for that LDMOS amp project or use as a bench supply. I have two left . (I also have 12 and 24 volt versions). My company bought another company and these were in their engineering closet. Brand new in box. 109-120 Volt input. I placed a 3 ohm resistor on one and at 15 Amps (675 watts) they didn't even flinch. My meter read 45.1 volts unloaded and 45.1 with the 3 ohm load. I don't have a resistor any smaller to load it more but this will give you an idea of their regulation. There is a screwdriver pot to set the voltage and another for current. I backed the voltage down to less than 1 Volt so if you replace them with regular pots they could make a very nice bench supply. I haven't tested the current adjustment so I don't know if they crowbar or drop the voltage to your set level. $90 firm each shipped in cont. USA. Brand new but sold as is due to the nature of electronics. Good check (shipped after clearing) or Postal MO okay. Save $10 if you pick up in CT. 73. KC1KWX; Listing #1762025 - Submitted on 03/15/26 by Callsign KC1KWX, Modified on 03/28/26 - IP: c-24-2-159-89.hsd1.ct.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: PAIR 2N173 GERMANIUM TRANSISTORS-NOS: For Sale: Pair of 2N173 Germanium power transistors
Lafayette Radio #19-15032 still in original packages.
Specified in Classic power supply applications.
150 Watt; 60 Volt.
$22.00 and $3.50 towards USA shipping for the pair.
Your check or USPS MO; I am gd in QRZ.
PayPal me at my email address (jtg4300 at yahoo.com).
Just let me know that payment is on the way and I will ship and get you the Tracking number.
I will also include two 2N699 RF transistors as Free Bonus.
See my Feedback and other ads for RF parts, Simpson, Drake, UNGAR and other gear.
Will combine shipping, where possible.; Listing #1761931 - Submitted on 03/14/26 by Callsign WA1BRI, Modified on 03/28/26 - IP: 47-199-186-130.fdr01.stgr.fl.ip.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Astron RS 35A: Used, good condition. Tested. NEW PRICE $125.00. $50 shipping from 45612, or will meet within 100 miles.; Listing #1762077 - Submitted on 03/15/26 by Callsign K8TQK, Modified on 03/28/26 - IP: chil-pppoe-74-126-75-107.dsl.bright.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
FS: THORDARSON TR-70 TRANSISTOR PS TFMR: For Sale: NOS Thordarson Transistor power supply transformer.
Model TR-70 new in original box.
Good little winter project.
These were an upgrade from the old Vibrator power supplies.
Specs:
12 VDC Input
117 VAC 60cps; 50 watts
Perfect for running a Classic radio, science experimentation or for emergency power.
$19.00 and $7.00 for shipping in CONUS.
Email me for overseas shipping or more photos.
Your check or USPS MO; I am gd in QRZ.
PayPal me at my email address (jtg4300 at yahoo.com)
Just let me know that payment is on the way and I will ship and get you the Tracking number.
See my other ads for more RF parts, Simpson, Drake, UNGAR and other gear.
Will combine shipping, where possible.; Listing #1761932 - Submitted on 03/14/26 by Callsign WA1BRI, Modified on 03/28/26 - IP: 47-199-186-130.fdr01.stgr.fl.ip.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
WANTED: MFJ-1118D Powerstrip: Looking for a reasonably priced MFJ-1118D power strip to replace mine destroyed in a fire.; Listing #1763404 - Submitted on 03/28/26 by Callsign W0CZT - IP: 75-60-133-94.lightspeed.stlsmo.sbcglobal.net; Click to Contact -- Send this Ad to a Friend
Wall Wart Power Supplies / Chargers FS: "Wall Wart" Power Supplies / Chargers For Sale:
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All of these are "regular" wall warts - not the new noisy
switching type. Use one of these, and you will not need
to put up with all of the interference.
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Kenwood Charger for TH-225 HT; $10
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Yaesu NC-9 B Charger
13 V DC at 45 ma, 2.5 mm plug; $12
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There are many uses for the 12 volt DC variety.
These all have 2.1 mm coaxial connectors with
center positive.
12 V DC at 1000 ma $17
12 V DC at 780 ma $15
12 V DC at 750 ma $15
12 V DC at 600 ma $14
12 V DC at 400 ma $12
12 V DC at 200 ma $10
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12 Volt AC at 1 amp - Note it is AC, not DC. $15
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9 V DC at 50 ma $8
9 V DC at 400 ma $12
9 V DC at 500 ma $13
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Prices do not include shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
.; Listing #1763389 - Submitted on 03/28/26 by Callsign W8EK - IP: customer.mmmiflx1.isp.starlink.com; Click to Contact -- Send this Ad to a Friend
Astron Model SS-12 Power Supply: Astron 10 Amp Model SS-12 Switching Power Supply.with Anderson Power Poles. Very good condition, minor scuffs and scratches works perfectly.$35 plus shipping. No PayPal. Money Order or check only. Sold as is no refund or return due to parts swappers. Thank you and 73s; Listing #1763340 - Submitted on 03/27/26 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
FOR SALE; Drake PS-7: I have a Drake Co. power supply Model PS7 Sn 1481 in good condition with connecting cables to the TR-7 Transceiver. $150.00 + Shipping.(32 lbs). Thankyou, Al, W4TUK; Listing #1756722 - Submitted on 01/24/26 by Callsign W4TUK, Modified on 03/27/26 - IP: syn-070-127-100-242.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Pyramid Gold PS-25G DC Power Supply: Very good condition with no modifications. Current limit knee occurs at 18.4 amps. $70 Jim WA9Z 641-856-7772 v/t 8-5CST Tnx.; Listing #1763197 - Submitted on 03/26/26 by Callsign WA9Z - IP: 145-81-181-166.mobile.uscc.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
Kenwood DS-2 DC-DC Converter: I am looking for a Kenwood DS-2 DC-DC Converter in excellent to new condition, including all original cabling. Please E-mail. Thank you.; Listing #1763170 - Submitted on 03/25/26 by Callsign N4KZO - IP: 138.sub-174-196-131.myvzw.com; Click to Contact -- Send this Ad to a Friend