This circuit for AC loads was found in February 1976, Radio Electronics magazine. The triac is common, and the times are given by the 20 MΩ resistor and the 1 uF capacitor.
This circuit is suitable for testing motor starting capacitors. Capacitors from 2 to 8 uF are...
This circuit was obtained from my Mechatronics Sourcebook, published in the United States. In it...
This circuit was obtained in a 1967 General Electric manual. The circuit applies to other triacs....