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 high quality audio preamplifier uses three bipolar transistor and is powered from 24 V...
This filter was found in the May 1989 issue of Radio Electronics magazine. The components can be...
This circuit shows how to use a low current read switch to control high power loads. The circuit...