This high-precision circuit was found in documentation from the 1990s. The integrated circuit is an LM111 or another in the series. The circuit has TTL output and can function as a shield.
This circuit is from a Linear Technology manual from the 90's. The integrated circuit is from the...
The original design of this circuit is from a 1978 publication. The circuit can be implemented with a...
The PNP transistor can be a BC548 and the NPN any common phototransistor. The circuit is from 1968...