This circuit also appears elsewhere on this site, obtained from other sources. This is an 80's American schematic book. Instead the lamp can be used white high-brightness LEDs.
This is a circuit of an 80's American documentation and can be implemented with modern components....
This circuit converts an AC signal into a voltage of the same peak value with precision and is...
This triac circuit was found in the July 1995 Electronics Now magazine. The triac is based on the...