This circuit drives a load with a delay given by the RC timing components. The circuit is from 1970s documentation. The diode is a general-purpose type.
The circuit shown below is from the National Semiconductor's 1994 Linear Applications Handbook. The...
This circuit was suggested by documentation from a 1980’s General Electric. The triacs determine...
This article is from an old publication from 1978. The transistor can be a BC548 and the power...