This circuit was found in ancient American documentation. Equivalent operational amplifiers can be used. The power supply must be symmetrical. The circuit provides an average output.
This watt meter was found in an old telecommunications documentation. The circuit is interspersed...
This circuit is from a Popular Electronics from the 90s. The circuit requires extreme care in use, as...
This oscillator is indicated for the adjustment of FI of FM radios, having its frequency...