This flashing allegory with 555 integrated circuits was found in the Radio Electronics Experimenter magazine from 1989. It is a simple circuit to assemble.
Based on an Analog Devices LTC1540, this circuit consumes only 50 uA, serving to monitor the...
The maximum time interval of this circuit depends on C1. Larger values can be used to get closer to...
Linear Technology's LT213 circuit, which suggests this application in 90s documentation, is not...