Some of the projects here are Solar Power Circuits charge control, Amateur Radio Circuits, beacon keyer, antenna tuner. Micro Power FM Broadcasting Circuits, Pulse Width Modulator PWM Circuits, motor speed controls, Geiger Counter Circuits,...
"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." - Forrest Cook