This circuit, which can be used as a shield, was found in American documentation from the 1970s. This configuration appears elsewhere in this section from other sources.
Frequencies other than the one for which this filter was calculated can pass with a unit gain to...
This traditional circuit with the 555 was found in a 1984 documentation. In this oscillator, the...
This well-designed sinusoidal oscillator by Wien bridge was found in ancient European...