We found this circuit in the 1982 SGS linear integrated circuit manual. The L149 is not common today and the circuit can be implemented with equivalents.
Utilizing the MAX4172 or MAX495 integrated circuit, this circuit increases the sensitivity of a...
This bidirectional optical switch detects the direction of movement of an object that passes...
This very simple amplifier was found in the Philips Databook of 1990. The circuit is suitable for...