This very low power circuit is based on the ICL7860. We found it in an Electronics Now from April 1995. The output current is very low.
This digital CMOS circuit generates sinusoidal signals from a 10 kHz rectangular signal. The...
Found in an 80's Elektor, this circuit can use any equivalent optical coupler. The buzzer is of the...
Found in a 1965 Electronic Design, this circuit limits surges in a load when power is applied. The...