This circuit was suggested by documentation from a 1980’s General Electric. The triacs determine the maximum load controls. The components in parallel with the load are varistor type protectors.
The configuration shown in the figure uses two NPN transistors activating the load when the input...
It is a 13.8 V x 10 A regulator obtained in a 2008 documentation. The 2N3055 transistors must be...
This timer of 10, 25, 45 seconds and 5 minutes has its times selected by the keys. The circuit drives...