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 AMPHF - FS/Trade Collins 204F-1 
- I am selling my Collins 204F-1 amplifier. This amplifier uses a pair of 4CX-1000 tubes. It will tune 2 to 30 MHz continuous. Collins reports the duty cycle as 24/7, at 2.5 KW. This amplifier is in very good condition. It was built for the military with heavy duty components, and vacuum relays. Much better built than anything sold in today’s market. No displays, IC’s or proprietary software that becomes unobtainable. There is a lot of information on the internet on this amplifier. Pick up in Northwest Oklahoma. It is big and heavy. Sold as is, working. Selling for 3000.00. I would also consider a trade for a good working Solid State amplifier. Looking for a Tokyo Hy-power, Elecraft Kpa-500 or Mercury. Cash, ZELLE, USPS money order accepted. Funds would need to clear my bank before the amp would be released. Mason, K5yhx. 214 293-4050. More pics on request
- Listing #1744301 - Submitted on 09/26/25 by Callsign K5YHX, Modified on 10/04/25 - IP: 172.59.125.88
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 AMPHF - Tokyo-Hy Power HL-450 with remote
- Very clean HL-450B. Use base or mobile. This very conservatively rated, RF-sense automatic band-switching 450B can easily and safely output as high as 500W with the right power supply.HRC-60 remote controller (very rare) included.
$1250 shipped. Photos on request
- Listing #1744835 - Submitted on 10/01/25 by Callsign NJ0F - IP: 206.223.148.173
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- AMPHF - Tokyo Hi Power HL-450B
- A super amp, had it in my car for years and Now I've changed cars, Works flawlessly. You all know what it is Buy it now shipped for 1300
- Listing #1742766 - Submitted on 09/10/25 by Callsign N3JO, Modified on 10/01/25 - IP: 76.106.213.41
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- AMPVHF - FOR SALE: Tokyo Hy-Power HL-350VDX
- 2m RF Power amplifier. 350w output. Asking price reduced to $1,350 and I will cover the cost of shipping. I am not a HAM, I am the youngest son and the Executor for the estate of W3BNN. Proceeds are for the benefit of the widow's estate. All equipment listed under the W3BNN callsign was in use and fully operational as of early 2025. Interested parties are encouraged to look at the W3BNN QRZ page. Ozzie was active for 70 years and his equipment was well maintained. I will do my best to answer any technical questions with advisory assistance from my father's amateur radio friends of over 60 years.
- Listing #1743195 - Submitted on 09/15/25 by Callsign W3BNN - IP: pool-173-66-96-27.washdc.fios.verizon.net
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- AMPHF - Tokyo Hy-Power HL2.5k AMPLIFIER FOR SALE
- For Sale: Tokyo HY-Power (THP) HL-2.5KFXHF amplifier. This amp is in immaculate condition and was the flagship of the THP line with 1.5 kW output from a desktop unit. The amplifier “speaks” Kenwood, Yaesu, Elecraft, and even ICOM for automatic band changing. It will also work with the Tokyo Hy-Power HC-1.5KAT Automatic Antenna Tuner for a fully integrated station. Specifications are below.
Frequency Band 1.8MHz ~ 28MHz (160m ~ 10m)
Operating Modes SSB/CW
Typical RF Drive 85W typical – 100W Max
Output Power 1.5kW Minimum SSB/CW
Automatic Band Switching Icom, Kenwood, Yaesu, and Elecraft K3 Transceivers with correct cable.
Power Requirement 200VAC-250VAC 50/60Hz – 3000VA
Cooling Method Forced Air Cooling
The amp comes with the original manual, a Kenwood band-data cable, and the power cable with a NEMA “6-20” style 220 VAC plug
Special Pre-NorthEast HamExpo price $1,300.00 pick-up or meet in Marlborough MA. Other delivery options may be available. Please inquire.
- Listing #1738520 - Submitted on 08/04/25 by Callsign K1NR - IP: c-98-217-234-187.hsd1.ma.comcast.net
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