HARDROCK-50 HF Power Amplifier

Limited Stock of KITS available, KIT version will be discontinued when inventory is sold out. Now taking pre-orders for fully assembled version.  Expect first deliveries around 3/10/25.  More availability will follow in 4-6 weeks.  Fully built HR-50 no longer supports the QSK module. Now shipping the 10th Anniversary Addition with new black anodized enclosure. Based on Jim Veatch's winning ARRL Home Brew Challenge II amplifier design, it's been improved and functionality has been expanded to include a new aluminum enclosure with built in pre-drilled and tapped heat sink, an LCD display, pre-soldered SMT components, computer control options, software upgradeable, easier to use connectors, and MORE. All software is open source and the unit hackable. The HARDROCK-50 is FCC Type accepted under device ID RHAHR50 Kit includes 3 PCBs with all surface mount components professionally installed using a reflow process. Builder only needs to install through hole components; toroidal inductors, rel