This is a precision half-wave rectifier, suggested by Texas Instruments. Diodes are commonly used, and resistors can have signal values. The power supply must be symmetrical.
We found this circuit in an old Argentine publication. The transistor can be replaced by a more...
This circuit was suggested by documentation from a 1980’s General Electric. The triacs determine...
This circuit can be used as a source of signals for generators of different types, sirens, or...