A simple AM regenerative receiver for shortwave listening
I recently built a simple AM receiver for listening to shortwave radio. The circuit uses just 4 transistors in total, can be built on a breadboard and works pretty well despite it’s simplicity. It works as a regenerative receiver, which means that some of the amplified RF is fed back to the input. This greatly increases sensitivity and selectivity at the cost of having an extra potentiometer that has to be tuned, since too much feedback will cause oscillation. Another…
