This circuit was obtained in old documentation, but it is valid for modern triacs that must be equipped with heat sink. The trigger element is an ordinary neon lamp.
Using the 4046 PLL integrated circuit, this circuit generates signals from 60 Hz to 1.4 kHz via...
We found this circuit in a Japanese 1968’s documentation. The circuit makes use of transistors from...
This circuit was found in the July 1988 issue of Radio Electronics magazine. It makes use of an...