Boards in 1 GitHub repository, designed in KiCad, that use the STA510F by STMicroelectronics (0℃~+70℃ 1-Channel 10V~40V 200Wx1@4Ω Class D Enable/shutdown function、ESD protection BSSOP-36-EP-11mm Audio Amplifiers ROHS). See how each wires it, with its parts, size, README and files; the STA510F’s symbol, footprint and pinout are on its own page.
alberto-grl/H7RTX-V2-Schematics-PCB
Schematics and PCB for a three-band direct sampling SDR. Using the internal ADC of an MCU, TX power is about 5 W. USB powered. Firmware code: https://github.com/alberto-grl/750RTX