Found in a Popular Electronics from the 90s, this Wien bridge oscillator uses a single-source operating. The frequency can be calculated from the formulas in the previous circuit.
Found in Datel's documentation from the 1980s, this circuit makes use of the company's operational...
We found this passive circuit in the February 1995 Electronics Now magazine. The circuit is...
This circuit was obtained in a 1977 documentation. Two operational amplifiers 741 provide an input...