This site is dedicated to sharing personal and public circuit designs so that the engineering community can make modifications to the designs as a pathway to new innovation. They post many public ...

This touch controlled musical bell circuit circuit produces a musical tone whenever someone touches the touch point designated as TP in the circuit. The circuit works from two AA cells and produces ...

Block diagrams close block diagramA diagram of a system represented by blocks connected by lines. are clear, simple diagrams showing all of the input, process and output elements that make up the ...