This interesting circuit was found on the Internet and is based on the 555. The circuit uses power MOSFETs that determine its output. No information about the transformer was provided.
This circuit was found in an Electronics World of 1968. It can be applied to any modern triac and...
This circuit is from a documentation from the 70s. The transistors are types of germanium of the...
Obtained from a 1996 documentation, this circuit uses common components and has a voltage gain of 200...