Found in a 90s Electronic Design, this circuit employs CMOS functions to mix signals from two inputs. Capacitors and resistors depend on how the signals are to be sampled.
This circuit deactivates devices powered by the power grid so that when the power returns, they do...
The trigger signal for this circuit is an audio tone. Tones up to close to 100kHz can be used. The...
Found in the March 1974 Radio Electronics magazine, this circuit is designed to measure the level...