Simple delay light circuit (2)

This is a simple delay lamp circuit similar to the above example. The working principle of the circuit is the same as that in Examples 5 and 7, except that when bulb E is lit, the current
flowing through the bulb is complete alternating current, and the bulb is in a normal lighting state. c An electrolytic capacitor with a withstand voltage of 300V should also be used to capture a smaller current . The circuit delay time is mainly determined by R. , C charging time constant, which can be adjusted according to usage needs. In addition, the trigger sensitivity of VT also has an impact on the delay time.