In this phase shift circuit, the transistor can be any general-purpose transistor. The circuit is from an Electronics Now issue of June 1993.
This circuit uses a PLL4046 oscillator to excite a piezoelectric ceramic. The circuit is from an...
This simulation shows how to test an IGBTs using a signal source and the virtual oscilloscope of...
This circuit is from an old documentation. However, it can be designed based on modern transistors...