This circuit used in tape recorders was found in an Electronic Design. The components support general-purpose equivalents. The circuit serves to recover media.
Found in a 90's EDN this circuit can be used as a shield. The transistor is a general-purpose type and the...
This circuit was found in the November 1992 issue of Radio Electronics magazine. The circuit has...
This circuit was found in an American documentation from 1977. The circuit can be implemented with modern...