The photo shows the completed class D 600W 160m and 80m amplifier, mains power supply and antenna change over board. The front pannel connectors provide a connection to the transmit o/c output from the drive transciever (FT817ND, background right). All RF connections and made via the back pannel. The white plastic box houses the slow start circuit from a microwave oven and the rewound oven transformer is on the left. All mains wiring (should be) double insulated. Fuses (a) rear pannel mains input fuse 10A (b) slowstart fuse 10A (c) 24v mosfet fuse 30A.