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.
This very simple continuity tester uses a small 1.5 V lamp (type used in flashlights). Can be...
Based on the Linear Technology LTC2054, this -48 V circuit was found in a 2005 manual. The circuit is...
Found in a 1965 General Electric Hobby Manual, this timer was originally created to operate with...