In this parper we consider an Alpazur oscillator which consists of a Rayleigh-type oscillator and a DC power supply controlled by a switch that modifies the operating mode. The oscillator denotes some special phenomena in some parameter settings and are called chaos or bifurcation. In addition, we observe the behavior of this oscillator over a wide rage of parameter variation. Chaos theory tools such as, bifurcation, phase portrait, poincaré section and Matching Energy (ME) was examined in the analysis of dynamic of the system. Simulations were carried out using the 4th-order Runge-Kutta algoritm in Matlab. The results shows that Alpazur oscillator is sensitive to parameter variation and exhibts a wide range dynamics from fundamental periodicty to chaos.