The power transistor of this circuit can also be the TIP42 mounted on a good heat sink. The circuit is from old European documentation and the integrated circuit used is not very common today.
We found this circuit in a 1986 Elettronica Pratica magazine, but the components used are common. As...
This simple 5.6 V regulator circuit was found in a 1966’s Philips. The zener can be changed to...
This PWM control circuit was found in an old documentation, but appears elsewhere on this site...