Equivalent transistors can be used in this circuit for automotive applications in the 1980s. The frequency is given by the capacitor and the current of the lamp depends on the LM195 transistor.
This circuit allows you to superimpose the signal from the microphone to that of the music with...
September 2017 - This new integrated circuit, which facilitates the design of PWM dimmers, can now be...
This circuit was found in a 1987 edition of the United States' Hands-On Electronics magazine. The...