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.
Found in American documentation from 1968, this circuit has an acute cut-off of the frequency to...
This low input impedance amplifier stage was found in a 1963 documentation. The circuit employs a...
We found this conventional sequencer configuration with the CMOS 4013 integrated circuit...