This power supply circuit was obtained from the February 1993 Radio Electronics magazine. The integrated circuit and power transistors must be provided with heatsinks.
This circuit is from an English magazine of 1977. The circuit is still current, just using BC547...
This circuit was obtained in an old Elektor. It is a reference, since the integrated products of the...
This circuit was found in a European technical documentation from 1991. It is a circuit that must...