Found in a Popular Electronics from the 90s, this circuit uses common components with several operational options, including the use of an optocoupler that allows its application in a shield.
This circuit was obtained from a 1968 documentation and can be adapted to use current equivalent...
With this configuration we have a voltage follower, amplifier with unit gain, in which the output...
This setting that applies to any operational amplifier was found in an old documentation. For the indicated...