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 circuit comes from a 1966 NASA documentation. The circuit makes use of discrete components and...
This circuit serves as the basis for an infrared audio link, using a remote sound for a wireless...
This small experimental transmitter can send its signals to distances up to 100 meters. L is...