This simple three-LED sensor uses an NTC at the input. The circuit is based on an uncommon integrated component today. We found it in documentation from the 80s.
We found this circuit in a 1982 documentation. Electronic games allow for different types of...
This excellent 3-transistor audio preamplifier is suitable for use with high-impedance...
This circuit is from Linear Technology 2005 documentation. The circuit is based on company...