This non-inverting comparator was found in old American documentation. Formulas next to the diagram allow you to calculate the components for the desired performance.
Who is the fastest? This circuit with neon lamp is powered directly by the network (there is no...
I found this circuit on a December 1976 Radio Elettronica. The Italian magazine no longer exists, but...
Some old multimeters have a high resistance scale including an internal circuit powered by a 22.5...