HARDROCK-50+ 100W Amp Kit

Limited Stock Ready for 100W for your QRP Radio. Meet the HARDROCK-50+. If you have heard of the HARDROCK-50, you already know how a solid, well designed, 50 watt amplifier can thoroughly enhance your QRP operation. Introduced in 2013 with more than 2000 units sold, the HARDROCK-50 is the most successful 50W HF+6M amplifier kit of all time. Fast forward 10 years to 2023 and the HobbyPCB engineers have managed to modernize the Hardrock-50 and double the output power in the same enclosure! The Hardrock-50+ is actually 4 oz. lighter than the Hardrock-50. There’s no need to drop more than $1000 to step up to the 100W level, we’ll get you there for much less. The HARDROCK-50+ 100W kit includes everything you need to build your working amp. Enhancements of the HARDROCK-50+ over the HARDROCK-50 include: Increases the output from 50W to 90-100W on 160-10M and 60-70W on 6M. Provides more extensive metering; Power, SWR, Temperature, Voltage and Current displays Uses active protection in fault conditions New color graphic LCD with enhanced displays and menus Built-in bias current measurement for easy alignment RF frequency detection and COR for automatic band selection with ANY transceiver Super efficient NXP MRF101 LDMOS transistor Easily powered by a 50V 4A DC power supply Seven element elliptical filters for each band exceeds FCC spectral purity requirements Uses the same ATU and interface kits as the 50W amp Check out more information and view the assembly instructions at the HARDROCK-50 Wiki