This circuit was originally intended to operate with a solar source for experiments. Transistors are general purpose, and the output current is relatively low.
August 2017 - Mouser Electronics is announcing the availability of TDK ICS-52000 microphones with...
This transistor source was found in a 1990 documentation. 2N3055 transistors must be equipped with...
This circuit was found in an American documentation from 1969. The circuit memorizes when a...