This circuit for incandescent lamps was found in a 70s documentation. The circuit uses an SCR according to the power of the controlled lamps. The delay is a few seconds, given by capacitor C1.
Suggested by an Electronic Engineering of the 90s, this circuit serves to test the continuity of...
August 2017 - This Maxim component, available from Mouser Electronics, is ideal for wearables,...
Found in documentation from the 1980s, this circuit can generate signals between 6 and 8 MHz. The...