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AMPHF - Hardrock 50 Amp w/ built-in tuner The Hardrock-50 is a complete 5W in, 50W out power amplifier covering 160-10m--usable with QRP rigs like KX2/KX3, FT-817/818, Icom 705 and others. FCC Type Approved, the HR50 uses 4 Mitsubishi RF16HHF1 power MOSFETs and microprocessor controlled for easy reliable operation. The amplifier is based on Jim Veatch's award winning design was tested extensively by the ARRL labs for output power, linearity and durability. I am original owner--very good condition. Includes tuner board, operation manual, and power pigtail with Anderson Powerpoles. $475 shipped to continental US (only), Paypal accepted. No trades. Listing #1743764 by K8MSH Submitted on 09/20/25 Submitted from 99-113-232-93.lightspeed.bcvloh.sbcglobal.net Click to Contact Back to Previous Page

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