The figure shows the equivalent circuit for the LM381 audio preamplifier IC. The circuit was found in the February 1990 issue of Radio Electronics magazine.
We present a different voltage regulator that is based on a transconductance operational...
This circuit was found in the May 1959 Radio Electronics magazine. Its purpose is to provide bias...
This circuit can be used to show the direction of current flow in semiconductors, such as LEDs....