Audio Oscillator 2-Transistors
A simple direct-coupled oscillator with two transistors. (August 3, 2009)
This circuit uses two transistors, two resistors and one capacitor. It is a direct-coupled oscillator and the frequency is determined by the capacitor and the 470k resistor.
Here is the bill or materials:
This circuit can be modified to be used as LED flasher or a Simple Lie Detector
|Homemade Gramophone (Phonograph)>|