In this circuit the triac conducts when switch S1 is opened. We found it in the October 1987 Radio Electronics magazine. The triac is controlled according to the load.
We found this conventional flasher by activating a relay in a 1987 documentation. The circuit...
The circuit was suggested by Analog Devices (www.analog.com) in its Application Note AN-411 and...
This circuit works in the opposite form to the previous one and drives a relay as a load. The...