This is the power supply for the EL34 tube amplifier given in V234. This power supply supplies all necessary voltages to the circuit.
This circuit can be used as a shield for microcontrollers such as the Arduino. Frequency is given...
This PWM circuit was found in an American publication in 1978. It consists of a simple control that...
This circuit was found in 1968 General Electric documentation. The circuit uses components from the era...