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HF Amplifiers

Displaying ads 1 to 10 of 217 ads in this category.
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 ALPHA 76A 2 TUBE  
In excellent working condition. Cosmetically clean. No blemishes, scratches, or discolorations. All original. $1200 plus shipping. Will ship in original factory shipper.

Listing #1759461 - Submitted on 02/18/26 by Callsign K5DKZ - IP: syn-076-183-146-186.res.spectrum.com
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 WANTED : Ten Tec 418 100w amp
Looking for a Fully functioning Ten Tec 418 Amplifier To Go with my Argonaut VI.

Listing #1759449 - Submitted on 02/18/26 by Callsign KC2IYG - IP: pool-71-186-187-114.bflony.fios.verizon.net
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 For sale: Alpha 76a (three 8874 tubes)  
I have a clean Alpha 76a amplifier [three 8874 tubes] and including two extra spare tested tubes for a total of five 3cx400a7/8874 tubes. I also have the pedigree of the previous owners, manual and work sheet. This is a very heavy amplifier and will be professional packaged and shipped (insured) to the lower 48 . This item is shipped in three separate boxes, tubes, amplifier and transformer. This is my own personal amplifier I have owned for the past 8 years and kept inside my smoke free clean residence. Due to illness Im not able to use this amplifier and is an excess of my needs. Paypal or check only, no trades. $1500.00 plus shipping.

Listing #1759448 - Submitted on 02/18/26 by Callsign KD6CCP - IP: 104.28.85.68
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 FS: ALS-600 Modified with LDMOS Finals  
.*** Sold pending delivery ***
For sale Ameritron ALS-600 modified to have four MRF300 LDMOS final transistors instead of the original four MRF150 MOSFET devices. This mod was done by Tom at CTR Engineering. Tom is the engineer that designed the ALS-600 when it was developed. It has a new board the finals are on and a new bias board. It also has the AD4X QSK mod that replaces the open frame T/R relay with 2 sealed relays. The 10/12 meter board is also installed.
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There are some scratches on the case, something rubbed on the back right side of the case in shipping. Over all it looks pretty good, no scratches on the front panel. It has not been around tobacco smoke.
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It now has 1200 watts (4 times 300) of final transistors instead of the original 600 watts, so it has plenty of head room. I see between 650 and 800 watts out (varies per band).
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I will not ship the amp, but must be picked-up, or meet in the Indianapolis, Cincinnati or Dayton area. Price $1400


Listing #1759353 - Submitted on 02/17/26 by Callsign N9VX, Modified on 02/18/26 - IP: 46.110.46.142
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 Trade Icom IC-7100 FOR Ameritron ALS-500
Like To Trade Icom IC-7100 For A Older Ameritron ALS-500M For $700 Shipped

Listing #1759304 - Submitted on 02/17/26 by Callsign AD4PF, Modified on 02/18/26 - IP: 186.sub-75-222-234.myvzw.com
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 MINT Yaesu VL-1000 Quadra w PS  
Absolute mint condition Quadra with the power supply.No scuffs scrapes or gashes anywhere. Smoke free pet free environment. 2200.00 plus shipping. NO TRADES NO PAYPAL. All original boxing and cables with literature also in mint condition.

Listing #1759433 - Submitted on 02/18/26 by Callsign NF9N - IP: 50.220.51.1
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 heathkit sb200 power transformer
working power transformer 95.00 plus shipping
have lots of other parts from sb200 ,meter has been sold no power supply board
let me know what you need


Listing #1759430 - Submitted on 02/18/26 by Callsign WR4F - IP: 46.110.132.26
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 Tokyo Hy-Power HL-100Bdx  
Show room condition.
This the extremely rare 100Bdx model, 100w , from 80m to 6m !
High quality in design, construction and operation functions.
Ideal for any QRP radio.
575$ shipped in US or Canada Paypal or Etransfert.
Same day shipping with tracking.
Contact via QTH or text me for instant reply 4502781695
Specs
Frequency Range: 3.5–29.7 MHz + 50 MHz
Output Power: 100 W (SSB/CW), ~25–33 W (AM)
Drive Power: 5 W / 10 W switchable
Power Requirement: 13.8 V DC, up to 17 A
Dimensions: 174 × 56 × 235 mm
Weight: Approx. 2.4 kg


Listing #1759346 - Submitted on 02/17/26 by Callsign VA2DV, Modified on 02/18/26 - IP: 108-171-71-36.resi.cgocable.ca
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 For sale or trade QRO HF2500DX.  
Very nice powerhouse amplifier. 40 watts of drive gives you legal limit out of a pair of 4cx800 tubes. Looking to sell or possibly trade up or down. What do you have ?? Would prefer local deal to Dayton oh . Willing to travel a short distance for the right deal. Asking $2000 will ship at buyers expense amplifier weighs 90 pounds but tubes and transformer can be easily removed and shipped separately.

Listing #1759379 - Submitted on 02/18/26 by Callsign N8QJO - IP: syn-065-186-032-226.res.spectrum.com
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 WANTED TO BUY QRO HF 2000
QRO HF 2000 Amplifiers-HF good condition chuck

Listing #1759368 - Submitted on 02/17/26 by Callsign KC6VCH - IP: 97-122-245-187.hlrn.qwest.net
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