This circuit was found in an English magazine from 1978, but it is current and the common 2N3055 can be used instead of the TIP3055. The transformer is from 1 to 5 A, as the installer wishes.

This circuit was found in an English magazine from 1978, but it is current and the common 2N3055 can be used instead of the TIP3055. The transformer is from 1 to 5 A, as the installer wishes.