Other settings like this can be found on this website. This makes use of old operational amplifiers, as the publication where we obtained, but equivalents can be used.
This circuit was found in a 1960 transistor manual from Sylvania. It measures the intensity of...
I found this circuit in an old Argentine publication from 1973. The components are no longer...
Found in Ferranti's 1969 documentation, this circuit can be mounted with a modern equivalent...