Electronics Club. Multilayer High Frequency / High Isolation Printed Circuit Card. Electronics Project Design Schematics and circuit diagrams. Bitsbox. FC's Electronic Circuits. FC's Circuit Archive contains many electronic circuits that I have designed and documented. I have attempted to include a number of unusual circuits, with an emphasis on useful applications over simple toy circuits.
The majority of these projects can be built with readily available discrete components. Only a few of the circuits here rely on microprocessors. Micros can greatly enhance the power of a small device, but the specialized development tools can put the project out of reach for many hobbyists and the development systems tend to go obsolete in a short time. Bucking that trend, the Arduino platform is an easy to learn microprocessor platform with a free software development environment that is so popular it should be around for many years.
Most of the circuits on this site have been drawn with the open-source and cross-platform XCircuit circuit drawing program. I'm a big fan of the Linux operating system. Free Electronics resouces: schematics, tutorials, datasheets, radios, tesla coils, FPGA's, microprocessors - Freebyte. Electronics Lab - Home. Technical Library. Software and Tools. Doctronics.