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

RADIOHF - ELECRAFT K3 K3S KPA3 100 WATT AMP OPTION: ELECRAFT K3 K3S KPA3 100 WATT AMP OPTION - Discontinued.
Often asked for.
$499 delivered - check or PP FF ok.
If you have a blown amp,or have a 10 watt radio that you want to upgrade to 100 watts,this is what you need.
Removed from a working radio today .
I can be reached through email if you have questions about this unit.
Larry K6RO; Listing #1748647 - Submitted on 11/06/25 by Callsign K6RO - IP: syn-067-253-101-060.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
ANTHF - Wanted Chameleon Power Compensator: I am looking for a Chameleon Power Compensator for the F-Loop 2.0 or 3.0. Please respond via this site.; Listing #1748646 - Submitted on 11/06/25 by Callsign K3UWY - IP: 47-202-162-54.fdr01.plsl.fl.ip.frontiernet.net; Click to Contact -- Send this Ad to a Friend
RADIOHF - Collins SM-280 Desk Microphone: Collins SM-280 Desk Microphone to Match the KWM-380 and Others - Rare item !
$119 delivered - check, Zelle, PP FF ok. offer ??
This very cool mic came with a beautiful KWM-380 Transceiver that I am selling for an estate.
Mic appears to be missing the wind screen.
Untested.
Needs a good cleaning.
Please email with questions, or more pics.
Larry k6ro; Listing #1748645 - Submitted on 11/06/25 by Callsign K6RO - IP: syn-067-253-101-060.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOHF - Elecraft K3 KRX3 Sub Receiver: ELECRAFT K3 K3S KRX3 SUBRECEIVER - OPTION -
$289 delivered check , Zelle, or PP FF ok.
$249 with a k3 or P3 purchase.
Or trade for something I can use ??
Removed from a working radio - see list of what you get :
SUBRECEIVER
DSP BOARD
MIXER BOARD
NOISE BLANKER BOARD
KNB3 SUBIN BOARD
KNB3 SUBOUT BOARD
4 TMP CABLES
HARDWARE
KSYN3 - Original version SYN board.
Please see pictures of everything included.
This is a stock picture,as I had 2 of these.
I think everything in this option kit is unavailable at this time from Elecraft,and may never be made again .
Will fit your K3 or K3S rig. If installing in a K3s, or a K3 with a newer SYN board,you will need to get a newer KSYN3A board.
I usually have these in a separate listing.
I think these were around $800 when available.
You will need to obtain filters if you need them,but they are easy.
I have them listed in a separate listing.
Happy to help you if you are not 100% sure how to do this !
Larry k6ro; Listing #1748644 - Submitted on 11/06/25 by Callsign K6RO - IP: syn-067-253-101-060.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOVHF - zumspot multi-mode hot spot: like new complete kit 2.4 LCD working pi-star loaded on disk
power supply , ant 135.00 Shipped
CHECK USPS MONEY ORDER 73; Listing #1748586 - Submitted on 11/05/25 by Callsign N4ERL, Modified on 11/06/25 - IP: syn-035-150-252-140.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
POWERSUP - Alinco DM-340MVT linear Power Supply: Alinco DM-340MVT linear Power Supply
CLEAN IN ORIGINAL BOX. 35 AMPS (30 CONTINUOUS) POWER SUPPLY. $140 PLUS SHIPPING
PAYPAL ZELLE OR ANY KIND OF CHECK.; Listing #1748642 - Submitted on 11/06/25 by Callsign K9DTC - IP: c-98-253-212-63.hsd1.il.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOANQ - For Sale: Hammerlund HQ145: Extremely clean, powers on, static, no signals except crystal calibrator. Clock works. Probably the best face, cabinet and chassis I've ever seen. Unmolested except for replacement of electrolytics. Note, it is not passing signals. May be a tube or something more serious. Available for pickup in Austin or Houston area. No shipping. Responses not thru QTH.com will not be responded to. $160; Listing #1748641 - Submitted on 11/06/25 by Callsign W5GW - IP: syn-070-112-096-074.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOVHF - FOR SALE: ICOM IC-31A NICE HT NOW $99: FOR SALE: ICOM IC-31A NICE HT. Looks nice works nice. Comes with the Box, Radio, Manual, Nifty Manual, Belt Clip, Battery, Hand Strap and Battery Charger. USA Sales and Shipping only. NOW ONLY $99 plus $10 Shipping. USPS Money Order or Check ship when it clears or Zelle. Sorry no PayPal. Sold as is no return. Also my address is correct on QRZ but my Apt number is 310 not 130. I have more photos if you want to see them just ask. Thanks for looking 73...; Listing #1747374 - Submitted on 10/25/25 by Callsign W5APL, Modified on 11/06/25 - IP: 108-203-113-26.lightspeed.rcsntx.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
POWERSUP - FS: Qty. 2 Radio Shack Power Supplies: I bought three of these Radio Shack power supplies many years ago to power different low amperage shack accessories. I only used one of them and the two that is up for sale has been in the closet ever since. These are not switching power supply Wall-Warts, they actual use a large transformer and rectifier. The power supplies are 12 volt, 1.5 amps with filtered output. They are quite heavy and large but will still plug into a wall outlet. I did put Power Poles on one of them this week and tested both to make sure they worked. I have not been able to find any RFI on my spectrum analyzer when testing them, so they are pretty quiet. They would make great power supplies for QRP rigs. I have no need for them and will ship both for $35 to the lower 48. Payment via Venmo, check or USPS MO.; Listing #1748163 - Submitted on 11/01/25 by Callsign AC4VM, Modified on 11/06/25 - IP: 99-140-116-7.lightspeed.knvltn.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
AMPHF - Dentron DTR-2000 with spare 8877 $1000: Hello All,
I have Dentron DTR-2000 amplifier for sale. It’s wired for 240VAC. It has a spare tube to go with. Both tubes are full output. The amplifier put out roughly 1400 watts, not from a weak tube but from the undersized transformer in it. It runs around 2600 volts on the plate. It has newer capacitors in the power supply. It tunes really easily, and has good output. If it had a larger transformer, it’d do more output but it’s good now and will never hurt that tube with the lower plate voltage. Reason for selling is I picked up an Alpha 77Dx two tuber. Willing to meet within 100 miles of Norfolk, VA. Any questions, feel free to call.
Sale comes with amplifier and a new spare 8877 (YU-158); Listing #1748640 - Submitted on 11/06/25 by Callsign KO4YAO - IP: 172.59.115.27; Click to Contact -- Send this Ad to a Friend