This circuit was obtained from American documentation from 1966. It triggers when the two input voltages are within a pre-established range. The circuit can be mounted with modern transistors.
This circuit uses two TTL trigger inverters to generate signals that can be adjusted at R1. The...
The purpose of this circuit is to maintain the liquid level of a reservoir between two values...
This Linear Technology circuit was found in a 1980s documentation. The circuit can swing up to a...