This circuit of an Electronics Hobbyists Handbook uses a different configuration for a triac. The circuit uses an integrated frequency divider and a coupler with a fotodiac.
In the figure we have a circuit with two operational amplifiers 741 capable of doubling the...
In the figure we have the way to control a TIC series triac with a reed switch. The current in the...
This circuit was obtained in a 1978 English magazine. This adjustable stabilized power source...