This simple circuit consists of a blinker for a very low consumption neon lamp, found in a 1982 documentation. The circuit can be powered by 110 V for 1N4004 diodes or 220 V for 1N4007 diodes.
If the reader is skilled, he can mount this spy micro-transmitter with SMD components and obtain an...
This circuit is suggested by an English publication from 1980. It is an RF detector that uses a...
This configuration appears in other points of the site both in articles and project suggestions. The...