This circuit was obtained in documentation on medical applications from 1966. The circuit is used in electromyography by switching the electrodes used with the equipment.
This circuit serves as a reference for the components used and the time. The circuit is from 1967...
We found this simple circuit in a 1999 documentation. It converts low-intensity sinusoidal signals (a...
We found this circuit in the Radio Electronics Handbook magazine special edition of 1992. The...