This emitter follower simulator circuit was obtained in a 1964 documentation. The circuit can be designed based on a modern transistor.
This circuit was obtained from Linear Technology documentation from the 90's. The circuit uses...
In the figure we have a typical Wien Bridge oscillator with AGC. The negative waveform is sampled by...
In the figure we have one of the many ways to program the counting of a 4017. The circuit uses...