We found this power supply in the 1982 SGS Linear Integrated Circuits manual. The L296 is not common today, but if found it results in an excellent switching source with good stability.
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...