This circuit was found in a documentation from 1948. There are 5 valves with push-pull output. The source uses a transformer, and the indicated application is with turntables.
This circuit keeps the courtesy lights of a car on for a while after the doors are closed. The...
This circuit was obtained in an Electronics Now from the 90s. The circuit uses operational...
This circuit was originally designed to measure the gain of two-door RF MOSFETs as indicated by...