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 Radio Electronics issue from August 1970. The circuit drives a 12 V...
The photo FET is not a common component today. In this 1964 Electronic Design application we have a light...
This circuit can provide both positive and negative voltage outputs from 2 to 12 V with current up to...