This automotive circuit was obtained from an 80's schematic from the integrated circuit factory itself. The voltage regulator is still common, but the operational amplifier is of the time.
This small transistor amplifier was found in an ancient American documentation. Transistors can be replaced...
El circuito de la figura es un regulador de corriente con ajuste en el rango de 0 a 3 ampères. El...
The inverter circuit shown in the figure can be used to power a fluorescent lamp in an emergency...