AM Broadcast Band Rejection Filter for Shortwave Reception
Greg from Electronicsnerd will be building some RF projects over the next few days. Today he presents an AM Broadcast Band Rejection Filter for Shortwave Reception which is based on the work of Joseph J. Carr. You can find the circuit in this article (PDF). With only 7 components it’s a simple circuit that could be built in a short time. “With an eye toward proper RF construction techniques, I