Found in an Electronic Design of 1964, this circuit operates with control voltages from 0 to 12 V determining the duration of the pulses.
This sensor triggers an oscillator emitting sound when a magnet is approached by a reed switch....
This circuit can generate signals in a wide frequency range, from a few hertz to close to 1 MHz....
This circuit can be used as an amplifier for musical instruments or even with your cell phone. The...