The frequency of this circuit depends on C1 and, for the indicated values, it is 1 kHz. Equivalent operational amplifiers can be used, and the power supply must be symmetrical.
This simple operational amplifier tester was published in the November 1987 issue of Radio...
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...
This configuration can be made based on other operational amplifiers. For other frequencies, the...