These 6 to 12 V source with current up to 100 mA was found in Radio Electronics magazine from June 19666. The source has a current indicator and uses transistors of the time.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This circuit was found in a Popular Electronics from the 90s. The circuit uses general purpose...
This voltage regulator circuit has a traditional configuration with two transistors, and can be...