This circuit was found in documentation from the 1980s. The circuit uses several components of the time, which are uncommon today. We must not supply it with a transformerless power supply.
This circuit is from old documentation but can be applied to modern equivalent components. The...
This LED light effects circuit is from 1988, but uses common components nowadays. The LEDs are...
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...