This circuit triggers by choosing the higher of two voltages. The circuit is from a 1964 Electronic Design. The transistors are of the time and can be replaced by current equivalents.
Found in 90s Popular Electronics this circuit amplifies signals over a wide range of frequencies....
This circuit consists of an adapter that allows the reading of low currents at various scales. A...
This voltage controlled oscillator, which can be used as a shield, generates signals in the 1.5...