Through the TTL output this circuit can be used as a shield. The sensor is a platinum probe, and the operational amplifier can be replaced by a modern equivalent, preferably of low voltage.
This circuit with the PA7601 was found in a 1967 Philco-Ford documentation. The circuit has a pass...
This CMOS version of the force gauge was found in a 1983 publication. In the CMOS version, the...
Using the LM317 (or LM350), this circuit is based on precision regulatory components such as those...