This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms and excites a load of 16 ohms. The integrated circuit of the time is the PA237.
This circuit eliminates transients that are 10% above the zener voltage. The transistor must be in...
With this circuit, a well known configuration, small speakers and even low-impedance headphones...
An electric wind flow obtained by the corona effect can be obtained with this circuit from Radio...