The two persons above are the geniuses who gave us two classic oscillator circuits as shown in Figure 1. Figure 1 The two classic oscillators circuits: Colpitts (left) and Clapp (right). However, a ...

We’ve read a lot about oscillators, but crystal oscillators seem to be a bit of a mystery. Hobby-level books tend to say, build a circuit like this and then mess with it until it oscillates.

Having already examined the Colpitts oscillator, we now look at its first cousin, the Clapp oscillator. Please consider the following illustration in Figure 1. There is an R-L-C network of passive ...