This circuit is for 12 V batteries but can be used with batteries of other voltages by changing the zener diode. The trigger point is adjusted by R1. The operating system accepts equivalents.
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....