This circuit can keep a set of lamps on for up to 1 minute, time given by C2 and R2 that can be changed. The load depends on the relay. The circuit is old, from 1988 documentation, but totally viable today.
June 2017 - The new TE Connectivity FSJMI series of illuminated tactiles switches is now available in Mouser...
April 2017 - Mouser Electronics is delivering the new Osram DURIS E 2835 LEDs for lighting,...
This traditional complementary circuit produces three different ones, adjusted in the...