When looking for things to write about, there is nothing we like to see more than well-documented schematics and code available for download. In the case of schematics, we realize that they can be a ...

This below circuit is a easy handsfree telephone receiver system. This doesn’t have dialing circuit so, it’s not a total phone replacement circuit, but it’s just only a loudspeaker system (i.e, phone ...

Though the value of circuit editing is well-established, its benefits often are not fully realized because design and manufacturing practices do not adequately consider the circuit-edit process.

When I saw this year’s Supercon Vectorscope badge, I decided that I had to build one for myself. Since I couldn’t attend in-person, I immediately got the PCBs and parts on order. Noting that the ...

What is reverse engineering? Tools used to reverse engineer a PCB. Specifics about de-layering Printed-circuit-board (PCB) reverse engineering is a method of analyzing and understanding the design ...

Chaotic circuits can arise from either computed (using Analog Computers or Digital Computers) solutions to coupled differential equations or from unstable systems/circuits. A new open-source circuit ...