The circuit shown is from old English documentation and can be made with BC548 transistors for low power ones. The 2N3055 must be mounted on a heat radiator.
This circuit synthesizes a sinusoidal signal from logic pulses that can be obtained from an...
This oscillator can be found in other articles on the site. This is from a 4 MHz documentation, remembering...
This circuit has its battery charged by a solar system. The circuit uses components that admit...