This circuit is from an old documentation from the 80's. The circuit provides an output signal for a warning or alarm system that indicates when a fuse or circuit breaker opens.
This simple pole search or neon probe for the 110 V or 220 V power grid has nothing unusual, being...
This transmitter was found in an old publication on espionage. It applies a signal of a few...
Maxim MAX20056B 6 Channel High Brightness LED Controller Maxim Integrated makes available through...