This circuit provides a logic output signal when the voltage exceeds a certain value. The circuit is from the 1994 Linear Applications Handbook by National Semiconductor.
This circuit was published in an English magazine from 1977, but it can be easily assembled since...
The maximum current of this circuit is 1 A. The circuit is from Motorola Linear Interface ICs from...
This circuit is a handset receiver that picks up the signal emitted by a coil under the rug or...