Most radio circuits are tuned to pretty close tolerances and going from 27 MHz to 50 MHz seemed like quite a leap. The answer? An Arduino and ... probably isn’t a project for the faint of ...

This is an VFO for use with old Ham Radio transceivers and with QRPs. I'm intending to use on the Ararinha-QRP-Triband project that I posted the PCB here. It's a 10x10cm board with a nice all metal, ...