We found this circuit in the March 1995 issue of Electronics Now magazine. The circuit has a frequency range determined by C1 and R3. The signal generated is square.
This simple circuit serves to demonstrate the working principle of a Set-Reset flip-flop (S-R or...
We found this basic oscillator configuration with two operational in Motorola's 1978...
In fact, it is a RF field indicator with an operational amplifier equivalent to the 741. This...