Found in the August 1993 Electronics Now magazine, this circuit employs two symmetrical source 741 op-amps. The output is fed to a true RMS measurement circuit.
This filter has a regulated source configuration. It can be implemented with almost any...
We found this filter configuration in an old documentation. It is one of many possible ones that...
This circuit is from a 1998 Electronics Now and can be easily assembled since it uses a common...