This circuit is from Motorola's Linear Interface ICs of 1993. The integrated circuit is not common and the Triac is chosen according to the power of the controlled load.
This circuit uses the flip-flops from the previous circuit to implement a 3-digit binary counter. The...
The voltage comparator used in this application is the NCX2220 from NXP. What this circuit does is...
The UVTRON tube is an ultraviolet radiation sensor. In this circuit from Radio Electronics from...