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HF Amplifiers

Displaying ads 11 to 20 of 317 ads in this category.
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KA9FOX Wishlist on Amazon.com
 F/S: RF Kit RF2K-S legal limit Amp  
For Sale: RF KiT RF2K-S, Legal limit+ solid state amplifier, HF plus 6 meters, with built in tuner. Amp was purchased new by me from John at Island Amplifier in early 2021.
Amplifier is in like new condition and works great, hasn't seen much use in the last year, moved across country and have yet to grow the antenna farm.
Have original box, however prefer not to ship at this time. Willing to meet serious buyer within 100 miles of Cookeville, TN or can meet up at Dayton Hamvention. Price is $4200.
Video's of amplifier running on dummy load available on request.
(Also have Acom A2100 amp for sale in separate add.)
Thanks for looking and 73!
Listing #1589680 - Submitted on 05/14/22 by Callsign W6NCB, Modified on 05/15/22 - IP: host-148-170-96-94.twlakes.net
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 Digital Display Unit Elecraft's KPA500  
Digital Display Unit for Elecraft's KPA500 amplifier:
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WITH REPAIR COST AND DOWN TIME FOR REPAIRS, CAN YOU AFFORD TO BE WITHOUT THIS!
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Instead of seeing only 1 crucial reading, monitor all 7 at the same time.
1. Power amplifier's heat sink temperature
2. Power amplifier's high voltage supply voltage
3. Power amplifier's current
4. Power amplifier's output power
5. SWR that the KPA500 sees at its output
6. Displays Operate/Standby mode
7. Displays Band amp is tuned to
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KEEP AN EYE ON YOUR KPA500'S STATS! BEFORE SOMETHING HAPPENS!
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$119.99 plus shipping
Listing #1589900 - Submitted on 05/15/22 by Callsign KV5J, Web Site: https://www.kv5j.com/store - IP: 54-dsl237.ne-tel.net
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 Ameritron ALS-600  
Ameritron ALS-600
Solid Amp 600watts out
Heavy Transformer power supply.
$1200
Due to weight, no shipping local PICKUP only.
Listing #1589721 - Submitted on 05/14/22 by Callsign N9POL, Modified on 05/15/22 - IP: 47.sub-174-209-36.myvzw.com
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 FS Ameritron AL 811 HF Amp  
Asking $600 pick up only. Southern AZ. More pictures available.
Listing #1589896 - Submitted on 05/15/22 by Callsign KB7TLE - IP: 226.sub-174-205-103.myvzw.com
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 Wanted Dead or Mostly Dead ICOM PW-1  
Paying $500.00 for non-working Icom PW-1
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You pack it and I will pay to have FedEx pick it up
Listing #1588925 - Submitted on 05/08/22 by Callsign W8UAB, Modified on 05/15/22, Web Site: https://swap.qth.com/search-results.php?keywords=w8uab&fieldtosearch=Call - IP: mobile-166-205-141-019.mycingular.net
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 Kenwood TL922a/w Eimac 3-500z $1075 Firm  
This is a local PU near Lynchburg/Danville Va area.This Linear is Nice and Runs as it should. Like many it has a few Mods over the years to corrected inherent problems these were manufactured with
.Call or Text me at [678] 282-4114. P.S. I also have 2 other running KW-922a's and a few Legal Limit Antenna Tuners [ Viking MB5 and MB4 and a sweet Custom Legal Limit Tunerbas well.If Interested we can make a bundle deal on other equipment?
Listing #1589886 - Submitted on 05/15/22 by Callsign AC5BA - IP: 12.sub-174-206-4.myvzw.com
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 WTB: Palstar LA-1K Amplifier
I am looking for a one-owner, non-smoker Palstar LA-1K amplifier in new or mint condition, one that is flawless electronically and cosmetically, with everything that came with it from dealer. If you have such a one you wish to sell pse EMAIL photos, details and price. I prefer PayPal. Tks es 73! Jan N0JR (gud QRZ.COM)
Listing #1589883 - Submitted on 05/15/22 by Callsign N0JR - IP: dhcp-59-118-212-67.cf-res.cfu.net
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 Dayton Specials
K4HV Pricelist Dayton Xenia Spaces 7637,7737 Thursday-Sunday
Military GRC-206 HF Radio RT-1444 150W vehicle amp/coupler w/new shockmount Works and is Super Nice 2000
Racal MA-1723 HF Exciter Looks Good Needs tantulum caps 200
Command Technologies HF-2500 2000
New HV caps and HV meter resistors works great! Needs Nothing. Clean.
Commander VHF-1200 2m RF deck 350
"No tube, bad transformer, As Is Project. Use your external HV supply, Makes a good foundation for GI-46b conversion, or full restoration. "
Kenwood TS-780S dual Band VHF/UHF set up for low power uwave transverter use 175
DCI 222MHz Filter 223.5-3H w/SO-239 connectors 175
Raytheon Marine Directional RX Nice AM/FM 50
Symetrix 528 Voice Processor 75
Absolutely no Shipping!! Come pick up at Xenia/Dayton only Cash n carry.
No reservations or holds First come first served
Listing #1589877 - Submitted on 05/15/22 by Callsign K4HV - IP: 072-189-169-201.res.spectrum.com
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 Gigavac G23WF T/R Relay  
Gigavac G23WF 26.5VDC (240 Ohms) coil T/R vacuum relay DPDT. 20kV, 23kV Peak, 75 Amp contacts, robust relay. This relay was replaced in an amplifier and the relay turned out to not be the problem. These cost over $900 new. This one: $385 shipped continental 48 USA.
Listing #1589876 - Submitted on 05/15/22 by Callsign KJ9I - IP: 075-135-081-053.res.spectrum.com
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 FS:30L-1 new PS and soft start relay bd.  
Collins 30L-1 amp PS & relay board
30L-1 owners, upgrade 30L-1 with better power supply, 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 $10 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 the board while the Heat generating bleeder resistors are above the PCB, no chance that Heat damage the capacitors.The R multiplier 4M ohm on the board as well as I shunt on the board. assembled and tested. Relay board changes original -170V, 70mA to -12V 1mA. If you use relay controlled radio for the 30L-1, Relay board is a must.Price $30 for ship,22uF 250V and 1K ohm .01 uF 630V reduction excessive 60hz ripple in bias supply and another 22 uF Bias cap and MOV for protect of bias 39 ohm 1W, 10K 3W parts $9
Listing #1587890 - Submitted on 04/30/22 by Callsign K6HM, Modified on 05/15/22 - IP: 75-37-192-218.lightspeed.lsatca.sbcglobal.net
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