Found in National Semiconductor publication from the 1980s. This gain-100 circuit can be implemented with equivalent modern components, including lower voltage supply.
This alarm oscillator was found in the December 1974 issue of Radio Electronics magazine. The...
We found this small audio amplifier in the November 1999 issue of Electronics Now magazine. The...
This circuit is a continuation of the previous one, serving as a protector against overloads in...