This circuit interrupts the power supply when grounding is missing. The circuit is from an old documentation (from the 80's) using current transformers and other components of the time.
This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the...
If mounted with SMD components, this transmitter will be so small that it can be installed inside a...
This circuit generates some very interesting tone forms having been found in an American...