HF/6M 500W V2.1 AMPLIFIER FOR SM0IKRMarch 27, 2024 HF/6M 500W V2.1 AMPLIFIER FOR SM0IKR 500W HF 160-6M BAND LINEAR AMPLIFIER V2.1 LDMOS 2x MRF300 NXP WEBSITE: https://www.dxworld-e.com.