We are familiar with the missing pulse detector circuit, which detects the occurrence of a missing pulse in a pulse train where the pulses are of equal duration. But this circuit detects the long ...

This is not an infrared motion detector! The IR detector circuit in principle, converts the IR signal pulse trains into noticeable aural ... on a small veroboard or any general-purpose printed circuit ...

You select the components carefully, design the perfect printed circuit board ... Our avalanche pulse generator schematic. The pulse generator itself is the single 2N3904 on the right.