This circuit is based on the TDA3810N. We found it in the March 1992 issue of Radio Electronics magazine. The circuit consists of an audio processor capable of working with two audio channels.
This configuration from the 1970s can be applied to modern equivalent operational amplifiers. The...
This simple alarm using only transistors was found in a 1990 publication. It can be powered by D...
The circuit presented was found in the 1994 National Instruments Linear Applications Handbook and...